./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/Ackermann02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Ackermann02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU --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 32bit --witnessprinter.graph.data.programhash 20c02b81d1b1bc312ccc75d6e9b31c6252d69e8a6e2560afe3a2a95a3e53102a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:56:50,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:56:51,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 21:56:51,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:56:51,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:56:51,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:56:51,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:56:51,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:56:51,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:56:51,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:56:51,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:56:51,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:56:51,122 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:56:51,122 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 21:56:51,122 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 21:56:51,123 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 21:56:51,123 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 21:56:51,123 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 21:56:51,124 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 21:56:51,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:56:51,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 21:56:51,125 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:56:51,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:56:51,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:56:51,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:56:51,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 21:56:51,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 21:56:51,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 21:56:51,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:56:51,128 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:56:51,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:56:51,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:56:51,141 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 21:56:51,142 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:56:51,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:56:51,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:56:51,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:56:51,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:56:51,144 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 21:56:51,144 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_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20c02b81d1b1bc312ccc75d6e9b31c6252d69e8a6e2560afe3a2a95a3e53102a [2024-10-31 21:56:51,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:56:51,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:56:51,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:56:51,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:56:51,510 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:56:51,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/recursive/Ackermann02.c Unable to find full path for "g++" [2024-10-31 21:56:53,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:56:53,644 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:56:53,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/sv-benchmarks/c/recursive/Ackermann02.c [2024-10-31 21:56:53,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/data/25d31fa81/f2c0645aacf345d1bd6aa4fe13735329/FLAG347d4d7e5 [2024-10-31 21:56:53,669 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/data/25d31fa81/f2c0645aacf345d1bd6aa4fe13735329 [2024-10-31 21:56:53,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:56:53,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:56:53,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:53,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:56:53,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:56:53,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:53,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@987ca2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53, skipping insertion in model container [2024-10-31 21:56:53,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:53,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:56:53,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:53,903 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:56:53,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:53,936 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:56:53,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53 WrapperNode [2024-10-31 21:56:53,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:53,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:53,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:56:53,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:56:53,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:53,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:53,978 INFO L138 Inliner]: procedures = 13, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2024-10-31 21:56:53,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:53,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:56:53,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:56:53,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:56:53,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:53,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:53,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,003 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:56:54,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:56:54,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:56:54,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:56:54,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:56:54,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (1/1) ... [2024-10-31 21:56:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:54,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:54,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:54,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 21:56:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:56:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:56:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:56:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2024-10-31 21:56:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2024-10-31 21:56:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:56:54,157 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:56:54,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:56:54,332 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-31 21:56:54,333 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:56:54,344 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:56:54,344 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:56:54,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:54 BoogieIcfgContainer [2024-10-31 21:56:54,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:56:54,346 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 21:56:54,346 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 21:56:54,349 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 21:56:54,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:56:54,350 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 09:56:53" (1/3) ... [2024-10-31 21:56:54,351 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78b998d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:56:54, skipping insertion in model container [2024-10-31 21:56:54,351 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:56:54,351 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:53" (2/3) ... [2024-10-31 21:56:54,352 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78b998d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:56:54, skipping insertion in model container [2024-10-31 21:56:54,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:56:54,352 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:54" (3/3) ... [2024-10-31 21:56:54,353 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ackermann02.c [2024-10-31 21:56:54,421 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 21:56:54,421 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 21:56:54,421 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 21:56:54,421 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 21:56:54,421 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 21:56:54,421 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 21:56:54,422 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 21:56:54,422 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 21:56:54,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:56:54,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 21:56:54,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:56:54,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:56:54,472 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 21:56:54,473 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:56:54,473 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 21:56:54,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:56:54,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 21:56:54,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:56:54,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:56:54,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 21:56:54,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:56:54,488 INFO L745 eck$LassoCheckResult]: Stem: 19#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 5#L29true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 22#L35true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 15#L41true call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 8#$Ultimate##0true [2024-10-31 21:56:54,490 INFO L747 eck$LassoCheckResult]: Loop: 8#$Ultimate##0true ~m := #in~m;~n := #in~n; 12#L17true assume !(0 == ~m); 13#L20true assume !(0 == ~n); 20#L23true call #t~ret5 := ackermann(~m, ~n - 1);< 8#$Ultimate##0true [2024-10-31 21:56:54,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:54,502 INFO L85 PathProgramCache]: Analyzing trace with hash 28695874, now seen corresponding path program 1 times [2024-10-31 21:56:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:54,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717770604] [2024-10-31 21:56:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:54,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:54,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:54,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:54,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 1 times [2024-10-31 21:56:54,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:54,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294668134] [2024-10-31 21:56:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:54,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:54,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:54,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:54,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1294871375, now seen corresponding path program 1 times [2024-10-31 21:56:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:54,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508189726] [2024-10-31 21:56:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:54,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:54,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:54,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:55,029 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:56:55,029 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:56:55,030 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:56:55,031 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:56:55,031 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:56:55,032 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,032 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:56:55,032 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:56:55,032 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration1_Loop [2024-10-31 21:56:55,032 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:56:55,033 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:56:55,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:55,211 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:56:55,212 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:56:55,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 21:56:55,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,244 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,244 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~n=0} Honda state: {ackermann_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:55,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 21:56:55,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,266 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 21:56:55,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,291 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,291 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~m=0} Honda state: {ackermann_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:55,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 21:56:55,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 21:56:55,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,330 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,330 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret6=0} Honda state: {ackermann_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:55,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:55,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 21:56:55,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,365 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,365 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret5=0} Honda state: {ackermann_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:55,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:55,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,383 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 21:56:55,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:55,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,427 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 21:56:55,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:56:55,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,472 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,473 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~n=-5} Honda state: {ackermann_#in~n=-5} Generalized eigenvectors: [{ackermann_#in~n=-1}, {ackermann_#in~n=0}, {ackermann_#in~n=0}] Lambdas: [1, 10, 5] Nus: [1, 0] [2024-10-31 21:56:55,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 21:56:55,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,497 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 21:56:55,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,520 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,521 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#res=0} Honda state: {ackermann_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:55,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:55,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 21:56:55,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,556 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,556 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret4=0} Honda state: {ackermann_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:55,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:55,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:55,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:55,572 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:55,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 21:56:55,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:55,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:55,598 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:55,599 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~m=4} Honda state: {ackermann_#in~m=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:55,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:56,045 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:56:56,045 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:56:56,045 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:56:56,045 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:56:56,045 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:56:56,046 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,046 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:56:56,046 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:56:56,046 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration1_Lasso [2024-10-31 21:56:56,046 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:56:56,046 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:56:56,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,196 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:56,511 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:56:56,516 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:56:56,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,520 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 21:56:56,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:56,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:56,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:56,548 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:56,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,570 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 21:56:56,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:56,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:56,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:56,593 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 21:56:56,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,617 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 21:56:56,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:56,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:56,648 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 21:56:56,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,672 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 21:56:56,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:56,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:56,704 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 21:56:56,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,726 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 21:56:56,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:56,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:56,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:56,748 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 21:56:56,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,770 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 21:56:56,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:56,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:56,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:56,808 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 21:56:56,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,856 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 21:56:56,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:56,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:56,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:56,879 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:56,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,900 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 21:56:56,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:56,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:56,921 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 21:56:56,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,946 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:56,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 21:56:56,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:56,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:56,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:56,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:56,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:56,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:56,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:56,977 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:56,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 21:56:56,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:56,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:56,999 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 21:56:57,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:57,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:57,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:57,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:57,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:57,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:57,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:57,033 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:57,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 21:56:57,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:57,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:57,056 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 21:56:57,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:57,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:57,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:57,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:57,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:57,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:57,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:57,083 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:57,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 21:56:57,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:57,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:57,105 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 21:56:57,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:57,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:57,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:57,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:57,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:57,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:57,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:57,133 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:57,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:57,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:57,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:57,156 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 21:56:57,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:57,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:57,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:57,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:57,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:57,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:57,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:57,184 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:57,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:57,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:57,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:57,207 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:57,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 21:56:57,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:57,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:57,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:57,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:57,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:56:57,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:56:57,232 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:57,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:57,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:57,253 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 21:56:57,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:57,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:57,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:57,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:57,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:57,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:57,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:57,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:57,278 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:57,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:57,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:57,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:57,299 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 21:56:57,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:57,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:57,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:57,319 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:56:57,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:57,327 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 21:56:57,328 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 21:56:57,344 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:56:57,373 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-10-31 21:56:57,373 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-10-31 21:56:57,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:57,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:57,393 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:57,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 21:56:57,396 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:56:57,417 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 21:56:57,418 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:56:57,418 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#in~n) = 1*ackermann_#in~n Supporting invariants [1*ackermann_#in~n >= 0] [2024-10-31 21:56:57,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-31 21:56:57,471 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 21:56:57,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:57,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:56:57,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:56:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:57,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:56:57,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:56:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:57,740 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-10-31 21:56:57,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:57,946 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 66 transitions. Complement of second has 17 states. [2024-10-31 21:56:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-31 21:56:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2024-10-31 21:56:57,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-31 21:56:57,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:56:57,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 21:56:57,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:56:57,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2024-10-31 21:56:57,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:56:57,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 66 transitions. [2024-10-31 21:56:57,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 21:56:57,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 31 states and 42 transitions. [2024-10-31 21:56:57,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-31 21:56:57,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2024-10-31 21:56:57,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 42 transitions. [2024-10-31 21:56:57,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:56:57,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-10-31 21:56:58,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 42 transitions. [2024-10-31 21:56:58,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2024-10-31 21:56:58,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-31 21:56:58,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2024-10-31 21:56:58,040 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-10-31 21:56:58,040 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-10-31 21:56:58,040 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 21:56:58,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2024-10-31 21:56:58,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 21:56:58,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:56:58,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:56:58,044 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:58,045 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:56:58,045 INFO L745 eck$LassoCheckResult]: Stem: 178#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 158#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 159#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 162#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 161#$Ultimate##0 ~m := #in~m;~n := #in~n; 164#L17 assume !(0 == ~m); 174#L20 assume 0 == ~n; 171#L21 call #t~ret4 := ackermann(~m - 1, 1);< 173#$Ultimate##0 [2024-10-31 21:56:58,045 INFO L747 eck$LassoCheckResult]: Loop: 173#$Ultimate##0 ~m := #in~m;~n := #in~n; 181#L17 assume !(0 == ~m); 180#L20 assume 0 == ~n; 169#L21 call #t~ret4 := ackermann(~m - 1, 1);< 173#$Ultimate##0 [2024-10-31 21:56:58,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:58,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1294871280, now seen corresponding path program 1 times [2024-10-31 21:56:58,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:58,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700485552] [2024-10-31 21:56:58,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:58,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:58,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:58,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:58,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1758767, now seen corresponding path program 1 times [2024-10-31 21:56:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202481495] [2024-10-31 21:56:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:58,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:58,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:58,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1665921438, now seen corresponding path program 2 times [2024-10-31 21:56:58,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:58,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392185849] [2024-10-31 21:56:58,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:58,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:58,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 21:56:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:58,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:58,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392185849] [2024-10-31 21:56:58,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392185849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:58,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:58,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:56:58,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78997308] [2024-10-31 21:56:58,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:58,430 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:56:58,430 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:56:58,430 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:56:58,430 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:56:58,430 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:56:58,430 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:58,430 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:56:58,431 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:56:58,431 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration2_Loop [2024-10-31 21:56:58,431 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:56:58,431 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:56:58,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,440 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,543 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:56:58,544 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:56:58,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:58,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:58,547 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:58,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 21:56:58,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:58,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:58,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:58,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:58,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:58,599 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:58,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 21:56:58,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:56:58,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:58,626 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:56:58,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:58,649 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:56:58,649 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:56:58,649 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:56:58,649 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:56:58,649 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:56:58,649 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:58,649 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:56:58,649 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:56:58,650 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration2_Loop [2024-10-31 21:56:58,650 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:56:58,650 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:56:58,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:58,856 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:56:58,857 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:56:58,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:58,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:58,860 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:58,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 21:56:58,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:58,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:58,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:58,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:58,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:58,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:58,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:58,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:58,886 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:56:58,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 21:56:58,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:58,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:58,908 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 21:56:58,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:56:58,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:56:58,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:56:58,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:56:58,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:56:58,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:56:58,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:56:58,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:56:58,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:56:58,936 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:56:58,936 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:56:58,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:58,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:58,938 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:58,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 21:56:58,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:56:58,940 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:56:58,940 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:56:58,941 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#in~n) = -2*ackermann_#in~n + 1 Supporting invariants [] [2024-10-31 21:56:58,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:58,955 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:56:58,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:59,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:56:59,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:56:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:59,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 21:56:59,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:56:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:59,098 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 21:56:59,098 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 10 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:59,199 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 10. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62 states and 86 transitions. Complement of second has 17 states. [2024-10-31 21:56:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-31 21:56:59,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:59,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2024-10-31 21:56:59,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 21:56:59,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:56:59,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 13 letters. Loop has 4 letters. [2024-10-31 21:56:59,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:56:59,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 8 letters. [2024-10-31 21:56:59,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:56:59,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 86 transitions. [2024-10-31 21:56:59,212 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-10-31 21:56:59,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 78 transitions. [2024-10-31 21:56:59,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-10-31 21:56:59,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2024-10-31 21:56:59,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 78 transitions. [2024-10-31 21:56:59,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:56:59,222 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 78 transitions. [2024-10-31 21:56:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 78 transitions. [2024-10-31 21:56:59,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2024-10-31 21:56:59,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 36 states have internal predecessors, (44), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (14), 5 states have call predecessors, (14), 8 states have call successors, (14) [2024-10-31 21:56:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2024-10-31 21:56:59,237 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 68 transitions. [2024-10-31 21:56:59,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:59,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:56:59,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:59,244 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:59,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:59,325 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2024-10-31 21:56:59,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 71 transitions. [2024-10-31 21:56:59,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-10-31 21:56:59,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 51 states and 69 transitions. [2024-10-31 21:56:59,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2024-10-31 21:56:59,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2024-10-31 21:56:59,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 69 transitions. [2024-10-31 21:56:59,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:56:59,336 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 69 transitions. [2024-10-31 21:56:59,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 69 transitions. [2024-10-31 21:56:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2024-10-31 21:56:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 30 states have internal predecessors, (37), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 21:56:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2024-10-31 21:56:59,344 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 59 transitions. [2024-10-31 21:56:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:59,345 INFO L425 stractBuchiCegarLoop]: Abstraction has 43 states and 59 transitions. [2024-10-31 21:56:59,346 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 21:56:59,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 59 transitions. [2024-10-31 21:56:59,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-10-31 21:56:59,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:56:59,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:56:59,348 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:59,348 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2024-10-31 21:56:59,349 INFO L745 eck$LassoCheckResult]: Stem: 455#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 431#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 429#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 430#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 441#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 446#$Ultimate##0 ~m := #in~m;~n := #in~n; 440#L17 assume !(0 == ~m); 442#L20 assume 0 == ~n; 435#L21 call #t~ret4 := ackermann(~m - 1, 1);< 432#$Ultimate##0 [2024-10-31 21:56:59,349 INFO L747 eck$LassoCheckResult]: Loop: 432#$Ultimate##0 ~m := #in~m;~n := #in~n; 434#L17 assume !(0 == ~m); 460#L20 assume !(0 == ~n); 453#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 463#$Ultimate##0 ~m := #in~m;~n := #in~n; 464#L17 assume !(0 == ~m); 465#L20 assume 0 == ~n; 433#L21 call #t~ret4 := ackermann(~m - 1, 1);< 432#$Ultimate##0 [2024-10-31 21:56:59,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:59,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1294871280, now seen corresponding path program 3 times [2024-10-31 21:56:59,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:59,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060404366] [2024-10-31 21:56:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:59,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:59,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:59,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:59,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:59,384 INFO L85 PathProgramCache]: Analyzing trace with hash 849190460, now seen corresponding path program 1 times [2024-10-31 21:56:59,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:59,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685771103] [2024-10-31 21:56:59,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:59,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:59,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:59,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:59,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:59,407 INFO L85 PathProgramCache]: Analyzing trace with hash 400910891, now seen corresponding path program 1 times [2024-10-31 21:56:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:59,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146140429] [2024-10-31 21:56:59,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:59,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:59,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:59,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:59,664 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:56:59,664 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:56:59,664 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:56:59,665 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:56:59,665 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:56:59,665 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:59,665 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:56:59,665 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:56:59,665 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration3_Loop [2024-10-31 21:56:59,665 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:56:59,665 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:56:59,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,687 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:56:59,766 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:56:59,767 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:56:59,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:59,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:59,769 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:59,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 21:56:59,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:59,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:59,791 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:59,791 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~n=1} Honda state: {ackermann_#in~n=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:59,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:59,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:59,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:59,812 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:59,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 21:56:59,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:59,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:59,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:59,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:59,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:59,857 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:59,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 21:56:59,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:56:59,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:59,921 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:59,921 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~m=-5} Honda state: {ackermann_#in~m=-5} Generalized eigenvectors: [{ackermann_#in~m=0}, {ackermann_#in~m=0}, {ackermann_#in~m=-1}] Lambdas: [3, 7, 1] Nus: [0, 0] [2024-10-31 21:56:59,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:59,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:59,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:59,946 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:59,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 21:56:59,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:56:59,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:56:59,971 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:56:59,971 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~n=0} Honda state: {ackermann_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:56:59,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 21:56:59,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:56:59,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:59,997 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:00,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 21:57:00,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:00,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:00,021 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:00,021 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret4=0} Honda state: {ackermann_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:00,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 21:57:00,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:00,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:00,044 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:00,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 21:57:00,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:00,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:00,061 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:00,061 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#res=0} Honda state: {ackermann_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:00,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-31 21:57:00,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:00,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:00,077 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:00,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 21:57:00,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:00,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:00,094 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:00,095 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret5=0} Honda state: {ackermann_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:00,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:00,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:00,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:00,112 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:00,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 21:57:00,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:00,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:00,136 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:00,136 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret6=0} Honda state: {ackermann_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:00,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-31 21:57:00,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:00,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:00,155 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:00,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 21:57:00,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:00,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:00,173 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:00,173 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~m=0} Honda state: {ackermann_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:00,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-31 21:57:00,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-31 21:57:00,634 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:00,634 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:00,634 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:00,634 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:00,634 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:57:00,634 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:00,634 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:00,635 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:00,635 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration3_Lasso [2024-10-31 21:57:00,635 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:00,635 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:00,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:00,965 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:00,965 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:57:00,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:00,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:00,972 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:00,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 21:57:00,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:00,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:00,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:00,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:00,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:00,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:00,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:00,998 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:01,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-31 21:57:01,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,021 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 21:57:01,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:01,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:01,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:01,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:01,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:01,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:01,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:01,056 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:01,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:01,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,079 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 21:57:01,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:01,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:01,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:01,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:01,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:01,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:01,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:01,106 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:01,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:01,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,129 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 21:57:01,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:01,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:01,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:01,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:01,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:01,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:01,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:01,154 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:01,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-10-31 21:57:01,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,176 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 21:57:01,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:01,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:01,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:01,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:01,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:01,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:01,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:01,206 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:01,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:01,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,228 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 21:57:01,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:01,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:01,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:01,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:01,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:01,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:01,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:01,262 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:01,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-31 21:57:01,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,282 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 21:57:01,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:01,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:01,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:01,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:01,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:01,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:01,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:01,302 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:01,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:01,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,324 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 21:57:01,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:01,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:01,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:01,343 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:57:01,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:01,348 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 21:57:01,348 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 21:57:01,360 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:57:01,394 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2024-10-31 21:57:01,394 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 8 variables to zero. [2024-10-31 21:57:01,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:01,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:01,397 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:01,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 21:57:01,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:57:01,413 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 21:57:01,413 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:57:01,413 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#in~m) = 1*ackermann_#in~m Supporting invariants [1*ackermann_#in~m >= 0] [2024-10-31 21:57:01,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-10-31 21:57:01,441 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 21:57:01,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:01,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 21:57:01,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:01,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 21:57:01,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:57:01,744 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 4 loop predicates [2024-10-31 21:57:01,744 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 59 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:02,091 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 59 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 140 states and 196 transitions. Complement of second has 36 states. [2024-10-31 21:57:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 1 accepting loop states [2024-10-31 21:57:02,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2024-10-31 21:57:02,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 9 letters. Loop has 8 letters. [2024-10-31 21:57:02,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:02,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 17 letters. Loop has 8 letters. [2024-10-31 21:57:02,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:02,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 9 letters. Loop has 16 letters. [2024-10-31 21:57:02,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:02,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 196 transitions. [2024-10-31 21:57:02,101 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2024-10-31 21:57:02,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 86 states and 120 transitions. [2024-10-31 21:57:02,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2024-10-31 21:57:02,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-10-31 21:57:02,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 120 transitions. [2024-10-31 21:57:02,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:02,105 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-10-31 21:57:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 120 transitions. [2024-10-31 21:57:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 70. [2024-10-31 21:57:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 52 states have internal predecessors, (59), 17 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (23), 8 states have call predecessors, (23), 13 states have call successors, (23) [2024-10-31 21:57:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 99 transitions. [2024-10-31 21:57:02,114 INFO L240 hiAutomatonCegarLoop]: Abstraction has 70 states and 99 transitions. [2024-10-31 21:57:02,115 INFO L425 stractBuchiCegarLoop]: Abstraction has 70 states and 99 transitions. [2024-10-31 21:57:02,115 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 21:57:02,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 99 transitions. [2024-10-31 21:57:02,116 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2024-10-31 21:57:02,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:57:02,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:57:02,117 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:02,118 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:57:02,118 INFO L745 eck$LassoCheckResult]: Stem: 779#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 748#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 746#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 747#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 765#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 767#$Ultimate##0 ~m := #in~m;~n := #in~n; 809#L17 assume !(0 == ~m); 806#L20 assume 0 == ~n; 744#L21 call #t~ret4 := ackermann(~m - 1, 1);< 768#$Ultimate##0 ~m := #in~m;~n := #in~n; 811#L17 assume !(0 == ~m); 761#L20 [2024-10-31 21:57:02,118 INFO L747 eck$LassoCheckResult]: Loop: 761#L20 assume !(0 == ~n); 750#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 749#$Ultimate##0 ~m := #in~m;~n := #in~n; 751#L17 assume !(0 == ~m); 761#L20 [2024-10-31 21:57:02,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:02,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1169214892, now seen corresponding path program 4 times [2024-10-31 21:57:02,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:02,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655285794] [2024-10-31 21:57:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:02,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:02,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:02,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:02,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:02,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2070862, now seen corresponding path program 2 times [2024-10-31 21:57:02,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:02,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854087210] [2024-10-31 21:57:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:02,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:02,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:02,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:02,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:02,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1072207327, now seen corresponding path program 2 times [2024-10-31 21:57:02,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:02,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803428007] [2024-10-31 21:57:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:02,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:02,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:02,303 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:02,303 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:02,303 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:02,303 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:02,304 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:57:02,304 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,304 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:02,304 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:02,304 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration4_Loop [2024-10-31 21:57:02,304 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:02,304 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:02,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:02,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:02,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:02,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:02,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:02,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:02,439 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:02,439 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:57:02,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:02,442 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:02,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 21:57:02,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:02,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:02,462 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:02,463 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret5=0} Honda state: {ackermann_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:02,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-10-31 21:57:02,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:02,480 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:02,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 21:57:02,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:02,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:02,497 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:02,497 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret4=0} Honda state: {ackermann_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:02,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 21:57:02,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:02,513 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:02,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 21:57:02,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:02,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:02,539 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:02,539 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~m=-4, ackermann_~m=-4} Honda state: {ackermann_#in~m=-4, ackermann_~m=-4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:02,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-10-31 21:57:02,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:02,555 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:02,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-31 21:57:02,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:02,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:02,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-10-31 21:57:02,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:02,597 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:02,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-10-31 21:57:02,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:57:02,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:02,939 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:02,940 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~n=-5, ackermann_#in~n=-1} Honda state: {ackermann_~n=-5, ackermann_#in~n=-1} Generalized eigenvectors: [{ackermann_~n=0, ackermann_#in~n=-4}, {ackermann_~n=-1, ackermann_#in~n=6}, {ackermann_~n=0, ackermann_#in~n=-7}] Lambdas: [0, 1, 0] Nus: [0, 1] [2024-10-31 21:57:02,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:02,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:02,957 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:02,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-10-31 21:57:02,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:02,960 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:02,974 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:02,974 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#res=0} Honda state: {ackermann_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:02,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:02,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:02,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:02,990 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:02,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 21:57:02,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:02,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:03,006 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:03,006 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret6=0} Honda state: {ackermann_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:03,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-10-31 21:57:03,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:03,584 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:03,585 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:03,585 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:03,585 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:03,585 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:57:03,585 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:03,585 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:03,585 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:03,585 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration4_Lasso [2024-10-31 21:57:03,585 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:03,585 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:03,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:03,929 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:03,929 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:57:03,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:03,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:03,932 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:03,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 21:57:03,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:03,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:03,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:03,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:03,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:03,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:03,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:03,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:03,954 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:03,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-10-31 21:57:03,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:03,974 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:03,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-31 21:57:03,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:03,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:03,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:03,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:03,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:03,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:03,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:03,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:03,990 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-10-31 21:57:04,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,009 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-10-31 21:57:04,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:04,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:04,028 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,049 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-10-31 21:57:04,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:04,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:04,070 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,084 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-10-31 21:57:04,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,100 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,114 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-10-31 21:57:04,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:04,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:04,136 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,158 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-10-31 21:57:04,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:04,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:04,184 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-10-31 21:57:04,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,204 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-10-31 21:57:04,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,219 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:04,219 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:04,222 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-10-31 21:57:04,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,236 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-10-31 21:57:04,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,251 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,264 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-10-31 21:57:04,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,279 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,293 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-10-31 21:57:04,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,308 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2024-10-31 21:57:04,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,323 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-10-31 21:57:04,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,344 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-10-31 21:57:04,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,366 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-10-31 21:57:04,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:57:04,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:57:04,388 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,405 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-10-31 21:57:04,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,421 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-10-31 21:57:04,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,436 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-10-31 21:57:04,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,457 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-10-31 21:57:04,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,480 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-10-31 21:57:04,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,495 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:57:04,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,503 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 21:57:04,504 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 21:57:04,523 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,547 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-10-31 21:57:04,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:04,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:04,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:04,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:04,573 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:04,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,597 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-10-31 21:57:04,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:04,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:04,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:04,616 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:57:04,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:04,624 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 21:57:04,624 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 21:57:04,647 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:57:04,688 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-10-31 21:57:04,688 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-10-31 21:57:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:04,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:04,691 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:04,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-10-31 21:57:04,694 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:57:04,717 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 21:57:04,718 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:57:04,718 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_~n) = 1*ackermann_~n Supporting invariants [1*ackermann_~n >= 0] [2024-10-31 21:57:04,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:04,740 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 21:57:04,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:04,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:57:04,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:04,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:57:04,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:05,001 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 4 loop predicates [2024-10-31 21:57:05,001 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 99 transitions. cyclomatic complexity: 34 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:05,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-10-31 21:57:05,051 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 99 transitions. cyclomatic complexity: 34. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 70 states and 99 transitions. Complement of second has 4 states. [2024-10-31 21:57:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 21:57:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2024-10-31 21:57:05,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 21:57:05,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:05,056 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:57:05,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:05,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:57:05,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:05,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:57:05,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:05,273 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 4 loop predicates [2024-10-31 21:57:05,273 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 99 transitions. cyclomatic complexity: 34 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:05,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 99 transitions. cyclomatic complexity: 34. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 70 states and 99 transitions. Complement of second has 4 states. [2024-10-31 21:57:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 21:57:05,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2024-10-31 21:57:05,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 21:57:05,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:05,310 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:57:05,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:05,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:57:05,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:05,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:57:05,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:05,517 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 4 loop predicates [2024-10-31 21:57:05,518 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 99 transitions. cyclomatic complexity: 34 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:05,696 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 99 transitions. cyclomatic complexity: 34. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 126 states and 177 transitions. Complement of second has 24 states. [2024-10-31 21:57:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2024-10-31 21:57:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 38 transitions. [2024-10-31 21:57:05,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 38 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 21:57:05,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:05,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 38 transitions. Stem has 15 letters. Loop has 4 letters. [2024-10-31 21:57:05,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:05,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 38 transitions. Stem has 11 letters. Loop has 8 letters. [2024-10-31 21:57:05,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:05,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 177 transitions. [2024-10-31 21:57:05,703 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 34 [2024-10-31 21:57:05,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 99 states and 145 transitions. [2024-10-31 21:57:05,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2024-10-31 21:57:05,708 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2024-10-31 21:57:05,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 145 transitions. [2024-10-31 21:57:05,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:05,709 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 145 transitions. [2024-10-31 21:57:05,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 145 transitions. [2024-10-31 21:57:05,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2024-10-31 21:57:05,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 71 states have internal predecessors, (81), 23 states have call successors, (23), 12 states have call predecessors, (23), 9 states have return successors, (33), 11 states have call predecessors, (33), 20 states have call successors, (33) [2024-10-31 21:57:05,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2024-10-31 21:57:05,721 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-10-31 21:57:05,721 INFO L425 stractBuchiCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-10-31 21:57:05,721 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 21:57:05,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 137 transitions. [2024-10-31 21:57:05,723 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2024-10-31 21:57:05,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:57:05,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:57:05,724 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:05,725 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:57:05,725 INFO L745 eck$LassoCheckResult]: Stem: 1333#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 1301#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1299#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 1300#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 1313#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 1323#$Ultimate##0 ~m := #in~m;~n := #in~n; 1375#L17 assume !(0 == ~m); 1380#L20 assume !(0 == ~n); 1331#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1379#$Ultimate##0 ~m := #in~m;~n := #in~n; 1388#L17 assume 0 == ~m;#res := 1 + ~n; 1381#ackermannFINAL assume true; 1378#ackermannEXIT >#47#return; 1296#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 1314#$Ultimate##0 [2024-10-31 21:57:05,725 INFO L747 eck$LassoCheckResult]: Loop: 1314#$Ultimate##0 ~m := #in~m;~n := #in~n; 1384#L17 assume !(0 == ~m); 1383#L20 assume !(0 == ~n); 1295#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1314#$Ultimate##0 [2024-10-31 21:57:05,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:05,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1471263848, now seen corresponding path program 1 times [2024-10-31 21:57:05,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:05,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687616593] [2024-10-31 21:57:05,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:05,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:05,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:57:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:05,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687616593] [2024-10-31 21:57:05,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687616593] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:57:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250527630] [2024-10-31 21:57:05,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:05,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:57:05,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:05,904 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:57:05,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-10-31 21:57:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:05,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 21:57:05,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:06,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:57:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:06,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250527630] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:57:06,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:57:06,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2024-10-31 21:57:06,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588218552] [2024-10-31 21:57:06,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:57:06,141 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:57:06,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 3 times [2024-10-31 21:57:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:06,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193105850] [2024-10-31 21:57:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:06,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:06,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:06,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:06,222 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:06,222 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:06,222 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:06,222 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:06,222 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:57:06,222 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,222 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:06,223 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:06,223 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration5_Loop [2024-10-31 21:57:06,223 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:06,223 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:06,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:06,323 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:06,323 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:57:06,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,326 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-10-31 21:57:06,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,341 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,341 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#res=0} Honda state: {ackermann_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:06,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-10-31 21:57:06,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,355 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-10-31 21:57:06,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,371 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,371 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret5=0} Honda state: {ackermann_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:06,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-10-31 21:57:06,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,386 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-10-31 21:57:06,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,402 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,402 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~m=0} Honda state: {ackermann_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:06,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-10-31 21:57:06,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,417 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-10-31 21:57:06,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,439 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,439 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~n=0} Honda state: {ackermann_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:06,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:06,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,454 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-10-31 21:57:06,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,477 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,477 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~m=4} Honda state: {ackermann_#in~m=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:06,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2024-10-31 21:57:06,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,491 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-10-31 21:57:06,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,506 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,506 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret6=0} Honda state: {ackermann_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:06,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:06,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,522 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-10-31 21:57:06,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2024-10-31 21:57:06,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,553 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2024-10-31 21:57:06,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:57:06,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,631 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,631 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~n=-7} Honda state: {ackermann_#in~n=-7} Generalized eigenvectors: [{ackermann_#in~n=0}, {ackermann_#in~n=-1}, {ackermann_#in~n=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-10-31 21:57:06,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2024-10-31 21:57:06,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:06,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:06,645 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:06,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2024-10-31 21:57:06,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:06,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:06,665 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:06,665 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret4=0} Honda state: {ackermann_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:06,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:06,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 21:57:06,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:57:06,680 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. cyclomatic complexity: 46 Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:57:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:06,803 INFO L93 Difference]: Finished difference Result 88 states and 121 transitions. [2024-10-31 21:57:06,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 121 transitions. [2024-10-31 21:57:06,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 21:57:06,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 86 states and 119 transitions. [2024-10-31 21:57:06,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2024-10-31 21:57:06,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2024-10-31 21:57:06,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 119 transitions. [2024-10-31 21:57:06,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:06,810 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86 states and 119 transitions. [2024-10-31 21:57:06,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 119 transitions. [2024-10-31 21:57:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2024-10-31 21:57:06,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 63 states have internal predecessors, (71), 19 states have call successors, (19), 11 states have call predecessors, (19), 8 states have return successors, (25), 8 states have call predecessors, (25), 17 states have call successors, (25) [2024-10-31 21:57:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2024-10-31 21:57:06,823 INFO L240 hiAutomatonCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-10-31 21:57:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:57:06,826 INFO L425 stractBuchiCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-10-31 21:57:06,826 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 21:57:06,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 115 transitions. [2024-10-31 21:57:06,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 21:57:06,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:57:06,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:57:06,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:06,833 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:06,834 INFO L745 eck$LassoCheckResult]: Stem: 1615#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 1583#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1581#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 1582#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 1604#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 1606#$Ultimate##0 ~m := #in~m;~n := #in~n; 1653#L17 assume !(0 == ~m); 1605#L20 assume 0 == ~n; 1579#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1607#$Ultimate##0 ~m := #in~m;~n := #in~n; 1627#L17 assume !(0 == ~m); 1648#L20 assume !(0 == ~n); 1591#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1590#$Ultimate##0 ~m := #in~m;~n := #in~n; 1592#L17 assume !(0 == ~m); 1657#L20 assume 0 == ~n; 1617#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1611#$Ultimate##0 ~m := #in~m;~n := #in~n; 1625#L17 assume 0 == ~m;#res := 1 + ~n; 1623#ackermannFINAL assume true; 1616#ackermannEXIT >#45#return; 1618#L21-1 #res := #t~ret4;havoc #t~ret4; 1632#ackermannFINAL assume true; 1630#ackermannEXIT >#47#return; 1598#L23-1 [2024-10-31 21:57:06,834 INFO L747 eck$LassoCheckResult]: Loop: 1598#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 1629#$Ultimate##0 ~m := #in~m;~n := #in~n; 1633#L17 assume !(0 == ~m); 1634#L20 assume 0 == ~n; 1620#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1622#$Ultimate##0 ~m := #in~m;~n := #in~n; 1642#L17 assume !(0 == ~m); 1640#L20 assume !(0 == ~n); 1599#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1638#$Ultimate##0 ~m := #in~m;~n := #in~n; 1635#L17 assume !(0 == ~m); 1637#L20 assume 0 == ~n; 1620#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1622#$Ultimate##0 ~m := #in~m;~n := #in~n; 1642#L17 assume 0 == ~m;#res := 1 + ~n; 1643#ackermannFINAL assume true; 1639#ackermannEXIT >#45#return; 1618#L21-1 #res := #t~ret4;havoc #t~ret4; 1632#ackermannFINAL assume true; 1630#ackermannEXIT >#47#return; 1598#L23-1 [2024-10-31 21:57:06,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1515043176, now seen corresponding path program 1 times [2024-10-31 21:57:06,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:06,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001486284] [2024-10-31 21:57:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:06,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:06,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:06,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:06,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1028708757, now seen corresponding path program 1 times [2024-10-31 21:57:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:06,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780659504] [2024-10-31 21:57:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:06,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:06,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:06,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:06,902 INFO L85 PathProgramCache]: Analyzing trace with hash -591709310, now seen corresponding path program 1 times [2024-10-31 21:57:06,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:06,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757130237] [2024-10-31 21:57:06,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:06,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:07,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 21:57:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:07,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:07,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 21:57:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:07,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 32 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 21:57:07,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:07,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757130237] [2024-10-31 21:57:07,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757130237] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:57:07,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123638265] [2024-10-31 21:57:07,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:07,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:57:07,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:07,248 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:57:07,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-10-31 21:57:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:07,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:57:07,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-31 21:57:07,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:57:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 33 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 21:57:07,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123638265] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:57:07,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:57:07,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 21:57:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154190913] [2024-10-31 21:57:07,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:57:08,163 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:08,164 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:08,164 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:08,164 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:08,164 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:57:08,164 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:08,164 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:08,164 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:08,165 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration6_Loop [2024-10-31 21:57:08,165 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:08,165 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:08,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,273 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:08,273 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:57:08,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:08,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:08,274 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:08,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2024-10-31 21:57:08,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:08,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:08,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2024-10-31 21:57:08,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:08,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:08,306 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:08,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2024-10-31 21:57:08,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:57:08,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:08,324 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:57:08,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:08,337 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:08,337 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:08,337 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:08,337 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:08,337 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:57:08,337 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:08,338 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:08,338 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:08,338 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration6_Loop [2024-10-31 21:57:08,338 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:08,338 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:08,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:08,428 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:08,428 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:57:08,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:08,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:08,430 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:08,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2024-10-31 21:57:08,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:08,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:08,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:08,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:08,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:08,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:08,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:08,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:08,447 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:57:08,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2024-10-31 21:57:08,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:08,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:08,464 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:08,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2024-10-31 21:57:08,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:08,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:08,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:08,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:08,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:08,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:08,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:08,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:08,483 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:57:08,485 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:57:08,485 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:57:08,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:08,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:08,487 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:08,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2024-10-31 21:57:08,488 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:57:08,489 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:57:08,489 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:57:08,489 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#t~ret5) = -1*ackermann_#t~ret5 + 1 Supporting invariants [] [2024-10-31 21:57:08,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2024-10-31 21:57:08,504 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:57:08,506 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret5 [2024-10-31 21:57:08,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:08,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:57:08,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:08,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:08,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 21:57:08,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:09,103 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:57:09,103 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 9 loop predicates [2024-10-31 21:57:09,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 83 states and 115 transitions. cyclomatic complexity: 35 Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 8 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:57:10,244 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 83 states and 115 transitions. cyclomatic complexity: 35. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 8 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Result 560 states and 908 transitions. Complement of second has 135 states. [2024-10-31 21:57:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 24 states 2 stem states 21 non-accepting loop states 1 accepting loop states [2024-10-31 21:57:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 8 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:57:10,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 99 transitions. [2024-10-31 21:57:10,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 99 transitions. Stem has 24 letters. Loop has 20 letters. [2024-10-31 21:57:10,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:10,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 99 transitions. Stem has 44 letters. Loop has 20 letters. [2024-10-31 21:57:10,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:10,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 99 transitions. Stem has 24 letters. Loop has 40 letters. [2024-10-31 21:57:10,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:10,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 560 states and 908 transitions. [2024-10-31 21:57:10,266 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 74 [2024-10-31 21:57:10,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 560 states to 442 states and 715 transitions. [2024-10-31 21:57:10,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2024-10-31 21:57:10,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 259 [2024-10-31 21:57:10,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 442 states and 715 transitions. [2024-10-31 21:57:10,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:10,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 442 states and 715 transitions. [2024-10-31 21:57:10,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states and 715 transitions. [2024-10-31 21:57:10,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 355. [2024-10-31 21:57:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 220 states have (on average 1.2136363636363636) internal successors, (267), 227 states have internal predecessors, (267), 87 states have call successors, (97), 34 states have call predecessors, (97), 48 states have return successors, (196), 93 states have call predecessors, (196), 79 states have call successors, (196) [2024-10-31 21:57:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 560 transitions. [2024-10-31 21:57:10,347 INFO L240 hiAutomatonCegarLoop]: Abstraction has 355 states and 560 transitions. [2024-10-31 21:57:10,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:10,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 21:57:10,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-31 21:57:10,352 INFO L87 Difference]: Start difference. First operand 355 states and 560 transitions. Second operand has 18 states, 16 states have (on average 2.3125) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (8), 4 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-31 21:57:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:10,864 INFO L93 Difference]: Finished difference Result 293 states and 453 transitions. [2024-10-31 21:57:10,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 453 transitions. [2024-10-31 21:57:10,870 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2024-10-31 21:57:10,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 281 states and 439 transitions. [2024-10-31 21:57:10,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 240 [2024-10-31 21:57:10,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 240 [2024-10-31 21:57:10,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 439 transitions. [2024-10-31 21:57:10,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:10,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 281 states and 439 transitions. [2024-10-31 21:57:10,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 439 transitions. [2024-10-31 21:57:10,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 244. [2024-10-31 21:57:10,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 149 states have (on average 1.2147651006711409) internal successors, (181), 160 states have internal predecessors, (181), 65 states have call successors, (65), 26 states have call predecessors, (65), 30 states have return successors, (117), 57 states have call predecessors, (117), 62 states have call successors, (117) [2024-10-31 21:57:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 363 transitions. [2024-10-31 21:57:10,911 INFO L240 hiAutomatonCegarLoop]: Abstraction has 244 states and 363 transitions. [2024-10-31 21:57:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 21:57:10,912 INFO L425 stractBuchiCegarLoop]: Abstraction has 244 states and 363 transitions. [2024-10-31 21:57:10,912 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 21:57:10,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244 states and 363 transitions. [2024-10-31 21:57:10,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2024-10-31 21:57:10,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:57:10,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:57:10,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:10,918 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:57:10,918 INFO L745 eck$LassoCheckResult]: Stem: 3560#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 3527#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 3525#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 3526#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 3550#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 3551#$Ultimate##0 ~m := #in~m;~n := #in~n; 3584#L17 assume !(0 == ~m); 3646#L20 assume 0 == ~n; 3541#L21 call #t~ret4 := ackermann(~m - 1, 1);< 3576#$Ultimate##0 ~m := #in~m;~n := #in~n; 3574#L17 assume !(0 == ~m); 3575#L20 assume !(0 == ~n); 3565#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3570#$Ultimate##0 ~m := #in~m;~n := #in~n; 3571#L17 assume !(0 == ~m); 3564#L20 assume 0 == ~n; 3566#L21 call #t~ret4 := ackermann(~m - 1, 1);< 3557#$Ultimate##0 ~m := #in~m;~n := #in~n; 3577#L17 assume 0 == ~m;#res := 1 + ~n; 3644#ackermannFINAL assume true; 3630#ackermannEXIT >#45#return; 3631#L21-1 #res := #t~ret4;havoc #t~ret4; 3661#ackermannFINAL assume true; 3659#ackermannEXIT >#47#return; 3562#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 3653#$Ultimate##0 ~m := #in~m;~n := #in~n; 3763#L17 assume !(0 == ~m); 3764#L20 assume !(0 == ~n); 3561#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3563#$Ultimate##0 ~m := #in~m;~n := #in~n; 3620#L17 assume !(0 == ~m); 3756#L20 assume !(0 == ~n); 3606#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3617#$Ultimate##0 [2024-10-31 21:57:10,919 INFO L747 eck$LassoCheckResult]: Loop: 3617#$Ultimate##0 ~m := #in~m;~n := #in~n; 3598#L17 assume !(0 == ~m); 3612#L20 assume !(0 == ~n); 3608#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3617#$Ultimate##0 [2024-10-31 21:57:10,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:10,919 INFO L85 PathProgramCache]: Analyzing trace with hash 776315954, now seen corresponding path program 2 times [2024-10-31 21:57:10,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:10,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422819298] [2024-10-31 21:57:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:10,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:11,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 21:57:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:11,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 21:57:11,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:11,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422819298] [2024-10-31 21:57:11,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422819298] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:57:11,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326576780] [2024-10-31 21:57:11,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:57:11,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:57:11,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,162 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-10-31 21:57:11,230 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:57:11,230 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:57:11,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 21:57:11,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 21:57:11,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:57:11,420 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 21:57:11,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326576780] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:57:11,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:57:11,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 10 [2024-10-31 21:57:11,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776657530] [2024-10-31 21:57:11,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:57:11,422 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:57:11,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 4 times [2024-10-31 21:57:11,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:11,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845010378] [2024-10-31 21:57:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:11,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:11,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:11,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:11,500 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:11,500 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:11,500 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:11,500 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:11,500 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:57:11,500 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,501 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:11,501 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:11,501 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration7_Loop [2024-10-31 21:57:11,501 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:11,501 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:11,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:11,618 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:11,618 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:57:11,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,621 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2024-10-31 21:57:11,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,643 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,644 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret5=0} Honda state: {ackermann_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:11,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:11,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,665 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2024-10-31 21:57:11,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,681 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,681 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret4=0} Honda state: {ackermann_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:11,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2024-10-31 21:57:11,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,695 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2024-10-31 21:57:11,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,710 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,710 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#res=0} Honda state: {ackermann_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:11,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2024-10-31 21:57:11,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,726 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2024-10-31 21:57:11,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,748 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,748 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~m=4} Honda state: {ackermann_#in~m=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:11,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2024-10-31 21:57:11,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,762 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2024-10-31 21:57:11,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:11,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,791 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2024-10-31 21:57:11,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:57:11,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,825 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,825 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~n=-5} Honda state: {ackermann_#in~n=-5} Generalized eigenvectors: [{ackermann_#in~n=-1}, {ackermann_#in~n=0}, {ackermann_#in~n=0}] Lambdas: [1, 10, 5] Nus: [1, 0] [2024-10-31 21:57:11,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2024-10-31 21:57:11,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,841 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2024-10-31 21:57:11,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,858 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,858 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~n=0} Honda state: {ackermann_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:11,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2024-10-31 21:57:11,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,875 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2024-10-31 21:57:11,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,892 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,892 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret6=0} Honda state: {ackermann_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:11,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2024-10-31 21:57:11,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:11,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:11,906 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:11,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2024-10-31 21:57:11,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:11,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:11,922 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:11,922 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~m=0} Honda state: {ackermann_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:11,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2024-10-31 21:57:11,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:11,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 21:57:11,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:57:11,937 INFO L87 Difference]: Start difference. First operand 244 states and 363 transitions. cyclomatic complexity: 123 Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 21:57:12,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:12,043 INFO L93 Difference]: Finished difference Result 137 states and 199 transitions. [2024-10-31 21:57:12,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 199 transitions. [2024-10-31 21:57:12,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 21:57:12,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 133 states and 190 transitions. [2024-10-31 21:57:12,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2024-10-31 21:57:12,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2024-10-31 21:57:12,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 190 transitions. [2024-10-31 21:57:12,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:12,049 INFO L218 hiAutomatonCegarLoop]: Abstraction has 133 states and 190 transitions. [2024-10-31 21:57:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 190 transitions. [2024-10-31 21:57:12,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 116. [2024-10-31 21:57:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 80 states have internal predecessors, (90), 25 states have call successors, (25), 15 states have call predecessors, (25), 15 states have return successors, (52), 20 states have call predecessors, (52), 23 states have call successors, (52) [2024-10-31 21:57:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2024-10-31 21:57:12,056 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 167 transitions. [2024-10-31 21:57:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:57:12,059 INFO L425 stractBuchiCegarLoop]: Abstraction has 116 states and 167 transitions. [2024-10-31 21:57:12,059 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 21:57:12,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 167 transitions. [2024-10-31 21:57:12,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 21:57:12,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:57:12,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:57:12,062 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:12,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-10-31 21:57:12,063 INFO L745 eck$LassoCheckResult]: Stem: 4163#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 4133#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 4131#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 4132#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 4144#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 4154#$Ultimate##0 ~m := #in~m;~n := #in~n; 4140#L17 assume !(0 == ~m); 4143#L20 assume !(0 == ~n); 4138#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4137#$Ultimate##0 ~m := #in~m;~n := #in~n; 4139#L17 assume !(0 == ~m); 4145#L20 assume 0 == ~n; 4146#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4155#$Ultimate##0 ~m := #in~m;~n := #in~n; 4205#L17 assume !(0 == ~m); 4204#L20 assume !(0 == ~n); 4127#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4174#$Ultimate##0 ~m := #in~m;~n := #in~n; 4170#L17 assume !(0 == ~m); 4172#L20 assume 0 == ~n; 4148#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4156#$Ultimate##0 ~m := #in~m;~n := #in~n; 4206#L17 assume 0 == ~m;#res := 1 + ~n; 4234#ackermannFINAL assume true; 4233#ackermannEXIT >#45#return; 4158#L21-1 #res := #t~ret4;havoc #t~ret4; 4159#ackermannFINAL assume true; 4141#ackermannEXIT >#47#return; 4135#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 4134#$Ultimate##0 ~m := #in~m;~n := #in~n; 4136#L17 assume 0 == ~m;#res := 1 + ~n; 4142#ackermannFINAL assume true; 4235#ackermannEXIT >#49#return; 4184#L23-2 #res := #t~ret6;havoc #t~ret5;havoc #t~ret6; 4217#ackermannFINAL assume true; 4191#ackermannEXIT >#45#return; 4189#L21-1 #res := #t~ret4;havoc #t~ret4; 4187#ackermannFINAL assume true; 4175#ackermannEXIT >#47#return; 4176#L23-1 [2024-10-31 21:57:12,064 INFO L747 eck$LassoCheckResult]: Loop: 4176#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 4161#$Ultimate##0 ~m := #in~m;~n := #in~n; 4200#L17 assume !(0 == ~m); 4197#L20 assume !(0 == ~n); 4180#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4161#$Ultimate##0 ~m := #in~m;~n := #in~n; 4200#L17 assume !(0 == ~m); 4197#L20 assume 0 == ~n; 4152#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4192#$Ultimate##0 ~m := #in~m;~n := #in~n; 4208#L17 assume !(0 == ~m); 4207#L20 assume !(0 == ~n); 4128#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4162#$Ultimate##0 ~m := #in~m;~n := #in~n; 4198#L17 assume !(0 == ~m); 4199#L20 assume 0 == ~n; 4151#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4192#$Ultimate##0 ~m := #in~m;~n := #in~n; 4208#L17 assume 0 == ~m;#res := 1 + ~n; 4209#ackermannFINAL assume true; 4221#ackermannEXIT >#45#return; 4222#L21-1 #res := #t~ret4;havoc #t~ret4; 4239#ackermannFINAL assume true; 4238#ackermannEXIT >#47#return; 4135#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 4134#$Ultimate##0 ~m := #in~m;~n := #in~n; 4136#L17 assume 0 == ~m;#res := 1 + ~n; 4142#ackermannFINAL assume true; 4235#ackermannEXIT >#49#return; 4184#L23-2 #res := #t~ret6;havoc #t~ret5;havoc #t~ret6; 4217#ackermannFINAL assume true; 4191#ackermannEXIT >#45#return; 4189#L21-1 #res := #t~ret4;havoc #t~ret4; 4187#ackermannFINAL assume true; 4175#ackermannEXIT >#47#return; 4176#L23-1 [2024-10-31 21:57:12,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:12,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1517141230, now seen corresponding path program 1 times [2024-10-31 21:57:12,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:12,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286880195] [2024-10-31 21:57:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:12,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:12,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:12,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:12,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:12,093 INFO L85 PathProgramCache]: Analyzing trace with hash 561044667, now seen corresponding path program 1 times [2024-10-31 21:57:12,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:12,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035634914] [2024-10-31 21:57:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:12,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:12,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:12,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:12,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1815031634, now seen corresponding path program 2 times [2024-10-31 21:57:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:12,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091866338] [2024-10-31 21:57:12,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:12,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:57:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:57:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 21:57:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:57:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:57:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 60 proven. 94 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-31 21:57:12,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:12,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091866338] [2024-10-31 21:57:12,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091866338] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:57:12,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755441535] [2024-10-31 21:57:12,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:57:12,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:57:12,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:12,802 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:57:12,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-10-31 21:57:12,879 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:57:12,879 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:57:12,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 21:57:12,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 49 proven. 100 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-10-31 21:57:12,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:57:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 69 proven. 84 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-31 21:57:14,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755441535] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:57:14,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:57:14,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 15] total 28 [2024-10-31 21:57:14,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121744024] [2024-10-31 21:57:14,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:57:14,676 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:14,676 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:14,676 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:14,676 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:14,676 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:57:14,676 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:14,676 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:14,676 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:14,676 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration8_Loop [2024-10-31 21:57:14,676 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:14,676 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:14,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,687 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,761 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:14,761 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:57:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:14,762 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:14,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2024-10-31 21:57:14,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:14,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:14,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:14,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:14,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:14,795 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:14,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2024-10-31 21:57:14,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:57:14,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:14,810 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:57:14,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2024-10-31 21:57:14,821 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:14,822 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:14,822 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:14,822 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:14,822 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:57:14,822 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:14,822 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:14,822 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:14,822 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration8_Loop [2024-10-31 21:57:14,822 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:14,822 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:14,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,834 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:14,924 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:14,924 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:57:14,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:14,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:14,925 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:14,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2024-10-31 21:57:14,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:57:14,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:57:14,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:57:14,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:57:14,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:57:14,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:57:14,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:57:14,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:57:14,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:57:14,945 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:57:14,945 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:57:14,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:14,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:14,947 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:14,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2024-10-31 21:57:14,949 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:57:14,950 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:57:14,950 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:57:14,950 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#t~ret5) = -1*ackermann_#t~ret5 + 2 Supporting invariants [] [2024-10-31 21:57:14,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2024-10-31 21:57:14,967 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:57:14,968 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret5 [2024-10-31 21:57:14,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 21:57:15,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 21:57:15,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:15,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 28 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 21:57:15,934 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 14 loop predicates [2024-10-31 21:57:15,934 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 116 states and 167 transitions. cyclomatic complexity: 54 Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:57:16,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 116 states and 167 transitions. cyclomatic complexity: 54. Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Result 144 states and 198 transitions. Complement of second has 13 states. [2024-10-31 21:57:16,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 21:57:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:57:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2024-10-31 21:57:16,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 39 letters. Loop has 35 letters. [2024-10-31 21:57:16,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:16,119 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:57:16,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 21:57:16,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:16,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 21:57:16,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 28 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 21:57:17,000 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 14 loop predicates [2024-10-31 21:57:17,000 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 116 states and 167 transitions. cyclomatic complexity: 54 Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:57:17,151 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 116 states and 167 transitions. cyclomatic complexity: 54. Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Result 144 states and 198 transitions. Complement of second has 13 states. [2024-10-31 21:57:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 21:57:17,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:57:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2024-10-31 21:57:17,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 39 letters. Loop has 35 letters. [2024-10-31 21:57:17,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:17,154 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:57:17,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 21:57:17,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:17,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 21:57:17,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 28 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 21:57:17,899 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 14 loop predicates [2024-10-31 21:57:17,900 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 116 states and 167 transitions. cyclomatic complexity: 54 Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:57:19,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 116 states and 167 transitions. cyclomatic complexity: 54. Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Result 2760 states and 6214 transitions. Complement of second has 684 states. [2024-10-31 21:57:19,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 27 states 2 stem states 23 non-accepting loop states 1 accepting loop states [2024-10-31 21:57:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 10 states have internal predecessors, (33), 7 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:57:19,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 97 transitions. [2024-10-31 21:57:19,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 97 transitions. Stem has 39 letters. Loop has 35 letters. [2024-10-31 21:57:19,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:19,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 97 transitions. Stem has 74 letters. Loop has 35 letters. [2024-10-31 21:57:19,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:19,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 97 transitions. Stem has 39 letters. Loop has 70 letters. [2024-10-31 21:57:19,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:57:19,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2760 states and 6214 transitions. [2024-10-31 21:57:19,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2024-10-31 21:57:19,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2760 states to 521 states and 732 transitions. [2024-10-31 21:57:19,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2024-10-31 21:57:19,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 327 [2024-10-31 21:57:19,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 521 states and 732 transitions. [2024-10-31 21:57:19,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:19,313 INFO L218 hiAutomatonCegarLoop]: Abstraction has 521 states and 732 transitions. [2024-10-31 21:57:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states and 732 transitions. [2024-10-31 21:57:19,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 447. [2024-10-31 21:57:19,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 271 states have (on average 1.132841328413284) internal successors, (307), 278 states have internal predecessors, (307), 112 states have call successors, (121), 53 states have call predecessors, (121), 64 states have return successors, (190), 115 states have call predecessors, (190), 105 states have call successors, (190) [2024-10-31 21:57:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 618 transitions. [2024-10-31 21:57:19,334 INFO L240 hiAutomatonCegarLoop]: Abstraction has 447 states and 618 transitions. [2024-10-31 21:57:19,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:19,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-31 21:57:19,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-10-31 21:57:19,336 INFO L87 Difference]: Start difference. First operand 447 states and 618 transitions. Second operand has 29 states, 25 states have (on average 2.04) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (12), 3 states have call predecessors, (12), 10 states have return successors, (18), 12 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-31 21:57:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:20,106 INFO L93 Difference]: Finished difference Result 269 states and 352 transitions. [2024-10-31 21:57:20,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 352 transitions. [2024-10-31 21:57:20,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-10-31 21:57:20,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 258 states and 338 transitions. [2024-10-31 21:57:20,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2024-10-31 21:57:20,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2024-10-31 21:57:20,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 338 transitions. [2024-10-31 21:57:20,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:57:20,116 INFO L218 hiAutomatonCegarLoop]: Abstraction has 258 states and 338 transitions. [2024-10-31 21:57:20,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 338 transitions. [2024-10-31 21:57:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2024-10-31 21:57:20,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 150 states have (on average 1.1) internal successors, (165), 154 states have internal predecessors, (165), 59 states have call successors, (59), 28 states have call predecessors, (59), 37 states have return successors, (99), 63 states have call predecessors, (99), 56 states have call successors, (99) [2024-10-31 21:57:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 323 transitions. [2024-10-31 21:57:20,131 INFO L240 hiAutomatonCegarLoop]: Abstraction has 246 states and 323 transitions. [2024-10-31 21:57:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-31 21:57:20,132 INFO L425 stractBuchiCegarLoop]: Abstraction has 246 states and 323 transitions. [2024-10-31 21:57:20,132 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 21:57:20,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 323 transitions. [2024-10-31 21:57:20,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-10-31 21:57:20,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:57:20,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:57:20,139 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 7, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:20,140 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:57:20,140 INFO L745 eck$LassoCheckResult]: Stem: 10179#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 10144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 10142#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 10143#L35 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 10158#L41 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 10169#$Ultimate##0 ~m := #in~m;~n := #in~n; 10157#L17 assume !(0 == ~m); 10159#L20 assume !(0 == ~n); 10197#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10201#$Ultimate##0 ~m := #in~m;~n := #in~n; 10203#L17 assume !(0 == ~m); 10360#L20 assume !(0 == ~n); 10196#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10201#$Ultimate##0 ~m := #in~m;~n := #in~n; 10202#L17 assume !(0 == ~m); 10195#L20 assume 0 == ~n; 10191#L21 call #t~ret4 := ackermann(~m - 1, 1);< 10193#$Ultimate##0 ~m := #in~m;~n := #in~n; 10188#L17 assume !(0 == ~m); 10192#L20 assume !(0 == ~n); 10176#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10250#$Ultimate##0 ~m := #in~m;~n := #in~n; 10344#L17 assume !(0 == ~m); 10343#L20 assume 0 == ~n; 10190#L21 call #t~ret4 := ackermann(~m - 1, 1);< 10174#$Ultimate##0 ~m := #in~m;~n := #in~n; 10194#L17 assume 0 == ~m;#res := 1 + ~n; 10234#ackermannFINAL assume true; 10230#ackermannEXIT >#45#return; 10231#L21-1 #res := #t~ret4;havoc #t~ret4; 10341#ackermannFINAL assume true; 10338#ackermannEXIT >#47#return; 10241#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 10245#$Ultimate##0 ~m := #in~m;~n := #in~n; 10251#L17 assume 0 == ~m;#res := 1 + ~n; 10247#ackermannFINAL assume true; 10240#ackermannEXIT >#49#return; 10235#L23-2 #res := #t~ret6;havoc #t~ret5;havoc #t~ret6; 10233#ackermannFINAL assume true; 10225#ackermannEXIT >#45#return; 10226#L21-1 #res := #t~ret4;havoc #t~ret4; 10376#ackermannFINAL assume true; 10359#ackermannEXIT >#47#return; 10163#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 10224#$Ultimate##0 ~m := #in~m;~n := #in~n; 10222#L17 assume !(0 == ~m); 10160#L20 assume !(0 == ~n); 10164#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10221#$Ultimate##0 ~m := #in~m;~n := #in~n; 10218#L17 assume !(0 == ~m); 10220#L20 assume !(0 == ~n); 10209#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10213#$Ultimate##0 [2024-10-31 21:57:20,140 INFO L747 eck$LassoCheckResult]: Loop: 10213#$Ultimate##0 ~m := #in~m;~n := #in~n; 10208#L17 assume !(0 == ~m); 10212#L20 assume !(0 == ~n); 10210#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10213#$Ultimate##0 [2024-10-31 21:57:20,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:20,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1369490833, now seen corresponding path program 3 times [2024-10-31 21:57:20,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:20,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085105508] [2024-10-31 21:57:20,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:20,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:20,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:20,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:20,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 5 times [2024-10-31 21:57:20,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:20,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345126064] [2024-10-31 21:57:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:20,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:20,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:20,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:20,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1638192644, now seen corresponding path program 4 times [2024-10-31 21:57:20,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:20,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006471529] [2024-10-31 21:57:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:20,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:20,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:20,310 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:57:20,310 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:57:20,310 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:57:20,311 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:57:20,311 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:57:20,311 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,311 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:57:20,311 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:57:20,311 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann02.c_Iteration9_Loop [2024-10-31 21:57:20,311 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:57:20,311 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:57:20,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:57:20,425 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:57:20,425 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:57:20,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,427 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2024-10-31 21:57:20,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,445 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,446 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#res=0} Honda state: {ackermann_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:20,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2024-10-31 21:57:20,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,471 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2024-10-31 21:57:20,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,497 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,497 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret5=0} Honda state: {ackermann_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:20,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2024-10-31 21:57:20,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,513 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2024-10-31 21:57:20,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,531 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,531 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~n=0} Honda state: {ackermann_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:20,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2024-10-31 21:57:20,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,548 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2024-10-31 21:57:20,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,565 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,565 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret6=0} Honda state: {ackermann_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:20,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2024-10-31 21:57:20,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,582 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2024-10-31 21:57:20,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,606 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,607 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~m=4} Honda state: {ackermann_#in~m=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:20,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2024-10-31 21:57:20,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,624 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2024-10-31 21:57:20,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:20,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,656 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2024-10-31 21:57:20,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:57:20,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,742 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,742 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#in~n=-7} Honda state: {ackermann_#in~n=-7} Generalized eigenvectors: [{ackermann_#in~n=0}, {ackermann_#in~n=-1}, {ackermann_#in~n=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-10-31 21:57:20,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:20,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,768 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2024-10-31 21:57:20,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,787 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,787 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_#t~ret4=0} Honda state: {ackermann_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:20,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2024-10-31 21:57:20,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:57:20,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:20,803 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:20,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2024-10-31 21:57:20,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:57:20,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:57:20,820 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:57:20,821 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ackermann_~m=0} Honda state: {ackermann_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:57:20,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf263b9-977c-4ce3-a061-9b26df2d842d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Ended with exit code 0