./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/Ackermann01-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/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_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/Ackermann01-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/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 64bit --witnessprinter.graph.data.programhash 380ed529f726f53285b49ce40e57404dbe066b029b8c3af7ce337366515780a5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:03,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:03,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:04:03,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:03,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:03,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:03,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:03,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:03,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:03,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:03,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:03,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:03,822 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:03,823 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:04:03,823 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:04:03,824 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:04:03,824 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:04:03,825 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:04:03,825 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:04:03,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:03,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:04:03,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:03,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:03,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:04:03,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:04:03,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:04:03,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:03,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:03,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:03,835 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:04:03,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:03,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:03,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:03,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:03,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:03,837 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:04:03,837 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_44152269-ef4a-4308-b804-8587de4a7522/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 380ed529f726f53285b49ce40e57404dbe066b029b8c3af7ce337366515780a5 [2024-10-31 22:04:04,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:04,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:04,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:04,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:04,193 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:04,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-numeric/Ackermann01-1.c Unable to find full path for "g++" [2024-10-31 22:04:06,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:06,540 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:06,540 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/sv-benchmarks/c/termination-numeric/Ackermann01-1.c [2024-10-31 22:04:06,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/data/91de99c19/fa20704548d84ec59113e08f83f51854/FLAGfcedbc96b [2024-10-31 22:04:06,572 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/data/91de99c19/fa20704548d84ec59113e08f83f51854 [2024-10-31 22:04:06,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:06,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:06,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:06,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:06,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:06,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:06,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1435a965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06, skipping insertion in model container [2024-10-31 22:04:06,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:06,624 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:06,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:06,896 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:06,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:06,937 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:06,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06 WrapperNode [2024-10-31 22:04:06,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:06,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:06,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:06,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:06,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:06,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:06,989 INFO L138 Inliner]: procedures = 13, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2024-10-31 22:04:06,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:06,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:06,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:06,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:07,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,022 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 22:04:07,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:07,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:07,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:07,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:07,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (1/1) ... [2024-10-31 22:04:07,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:07,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:07,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:07,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2024-10-31 22:04:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2024-10-31 22:04:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:07,206 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:07,209 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:07,361 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-31 22:04:07,366 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:07,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:07,383 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:04:07,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:07 BoogieIcfgContainer [2024-10-31 22:04:07,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:07,385 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:04:07,385 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:04:07,393 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:04:07,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:04:07,395 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:04:06" (1/3) ... [2024-10-31 22:04:07,398 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13c69e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:04:07, skipping insertion in model container [2024-10-31 22:04:07,398 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:04:07,398 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:06" (2/3) ... [2024-10-31 22:04:07,399 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13c69e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:04:07, skipping insertion in model container [2024-10-31 22:04:07,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:04:07,399 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:07" (3/3) ... [2024-10-31 22:04:07,401 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ackermann01-1.c [2024-10-31 22:04:07,532 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:04:07,537 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:04:07,537 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:04:07,537 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:04:07,537 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:04:07,537 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:04:07,538 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:04:07,538 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:04:07,556 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 22:04:07,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:04:07,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:07,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:07,606 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:04:07,607 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:04:07,608 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:04:07,608 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 22:04:07,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:04:07,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:07,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:07,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:04:07,615 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:04:07,625 INFO L745 eck$LassoCheckResult]: Stem: 19#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 5#L29true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 6#L33true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 8#L36true call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 9#$Ultimate##0true [2024-10-31 22:04:07,627 INFO L747 eck$LassoCheckResult]: Loop: 9#$Ultimate##0true ~m := #in~m;~n := #in~n; 13#L17true assume !(0 == ~m); 14#L20true assume !(0 == ~n); 20#L23true call #t~ret5 := ackermann(~m, ~n - 1);< 9#$Ultimate##0true [2024-10-31 22:04:07,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash 28695874, now seen corresponding path program 1 times [2024-10-31 22:04:07,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:07,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142549885] [2024-10-31 22:04:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:07,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:07,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:07,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:07,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 1 times [2024-10-31 22:04:07,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:07,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036450277] [2024-10-31 22:04:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:07,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:07,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:07,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1294871375, now seen corresponding path program 1 times [2024-10-31 22:04:07,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:07,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190323657] [2024-10-31 22:04:07,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:07,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:07,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:07,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:08,219 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:08,219 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:08,220 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:08,220 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:08,220 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:08,220 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,220 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:08,220 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:08,221 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration1_Loop [2024-10-31 22:04:08,221 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:08,221 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:08,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:08,470 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:08,471 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:08,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:04:08,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,504 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,504 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 22:04:08,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:04:08,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:04:08,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,550 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,550 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 22:04:08,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:08,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:04:08,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,585 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,585 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 22:04:08,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:04:08,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:04:08,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,630 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,630 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 22:04:08,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:08,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,645 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:04:08,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:04:08,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,698 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:04:08,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:08,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,744 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,744 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 22:04:08,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:04:08,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:04:08,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,783 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,783 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 22:04:08,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:08,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,798 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:04:08,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,813 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,813 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 22:04:08,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:08,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:08,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:08,828 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:08,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:04:08,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:08,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:08,857 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:08,858 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 22:04:08,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:04:09,212 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:09,213 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:09,213 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:09,213 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:09,213 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:09,213 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,213 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:09,213 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:09,213 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration1_Lasso [2024-10-31 22:04:09,213 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:09,213 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:09,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,363 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:09,616 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:09,623 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:09,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:04:09,631 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 22:04:09,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:09,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:09,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:09,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:09,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:09,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:09,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:09,655 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:09,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:04:09,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,679 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:04:09,683 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 22:04:09,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:09,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:09,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:09,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:09,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:09,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:09,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:09,701 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:09,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:04:09,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,722 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:04:09,726 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 22:04:09,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:09,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:09,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:09,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:09,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:09,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:09,754 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:09,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:04:09,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,774 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:04:09,778 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 22:04:09,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:09,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:09,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:09,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:09,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:09,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:09,809 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:09,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:09,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,832 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:04:09,835 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 22:04:09,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:09,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:09,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:09,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:09,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:09,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:09,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:09,853 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:09,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:09,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,873 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:04:09,875 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 22:04:09,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:09,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:09,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:09,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:09,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:09,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:09,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:09,894 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:09,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:04:09,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,925 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:04:09,932 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 22:04:09,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:09,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:09,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:09,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:09,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:09,951 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:09,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:09,954 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:09,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:04:09,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:09,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:09,974 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:09,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:04:09,992 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 22:04:10,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:10,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:10,022 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:10,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,047 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:04:10,055 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 22:04:10,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:10,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:10,092 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:04:10,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,112 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:04:10,116 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 22:04:10,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:10,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:10,138 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:04:10,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,160 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:04:10,164 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 22:04:10,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,182 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:10,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:10,187 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:04:10,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,209 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:04:10,211 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 22:04:10,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:10,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:10,235 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:04:10,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,256 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:04:10,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:10,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:10,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:10,281 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-31 22:04:10,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,295 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:04:10,297 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 22:04:10,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:10,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:10,317 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:10,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,338 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:04:10,341 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 22:04:10,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:10,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:10,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:10,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:10,358 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:10,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:10,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,381 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:04:10,386 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 22:04:10,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:10,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:10,401 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:10,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:10,409 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 22:04:10,409 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:04:10,425 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:10,454 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-10-31 22:04:10,454 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-10-31 22:04:10,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:10,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:10,470 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:10,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:10,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:04:10,499 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 22:04:10,499 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:10,499 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 22:04:10,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:10,538 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 22:04:10,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:10,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:04:10,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:10,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:04:10,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:10,736 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 22:04:10,784 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 22:04:10,789 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 22:04:11,003 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 22:04:11,007 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 22:04:11,015 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 22:04:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2024-10-31 22:04:11,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-31 22:04:11,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:11,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:04:11,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:11,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2024-10-31 22:04:11,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:11,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 66 transitions. [2024-10-31 22:04:11,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:04:11,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 31 states and 42 transitions. [2024-10-31 22:04:11,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-31 22:04:11,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2024-10-31 22:04:11,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 42 transitions. [2024-10-31 22:04:11,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:11,043 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-10-31 22:04:11,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 42 transitions. [2024-10-31 22:04:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2024-10-31 22:04:11,071 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 22:04:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2024-10-31 22:04:11,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-10-31 22:04:11,074 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-10-31 22:04:11,074 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:04:11,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2024-10-31 22:04:11,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:04:11,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:11,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:11,077 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:11,077 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:04:11,077 INFO L745 eck$LassoCheckResult]: Stem: 177#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 158#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 159#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 160#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 162#$Ultimate##0 ~m := #in~m;~n := #in~n; 164#L17 assume !(0 == ~m); 181#L20 assume 0 == ~n; 171#L21 call #t~ret4 := ackermann(~m - 1, 1);< 173#$Ultimate##0 [2024-10-31 22:04:11,077 INFO L747 eck$LassoCheckResult]: Loop: 173#$Ultimate##0 ~m := #in~m;~n := #in~n; 180#L17 assume !(0 == ~m); 179#L20 assume 0 == ~n; 169#L21 call #t~ret4 := ackermann(~m - 1, 1);< 173#$Ultimate##0 [2024-10-31 22:04:11,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:11,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1294871280, now seen corresponding path program 1 times [2024-10-31 22:04:11,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:11,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049365752] [2024-10-31 22:04:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:11,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:11,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:11,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:11,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:11,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1758767, now seen corresponding path program 1 times [2024-10-31 22:04:11,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:11,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800843093] [2024-10-31 22:04:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:11,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:11,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:11,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:11,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1665921438, now seen corresponding path program 2 times [2024-10-31 22:04:11,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:11,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879400826] [2024-10-31 22:04:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:11,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:11,268 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 22:04:11,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:11,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879400826] [2024-10-31 22:04:11,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879400826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:11,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:11,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:11,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247107900] [2024-10-31 22:04:11,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:11,356 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:11,356 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:11,356 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:11,356 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:11,356 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:11,356 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:11,356 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:11,357 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:11,357 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration2_Loop [2024-10-31 22:04:11,357 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:11,357 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:11,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,461 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:11,461 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:11,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:11,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:11,466 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:11,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:04:11,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:11,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:11,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:04:11,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:11,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:11,514 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:11,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:04:11,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:11,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:11,535 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:11,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:11,554 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:11,554 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:11,554 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:11,554 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:11,554 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:11,555 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:11,555 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:11,555 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:11,555 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration2_Loop [2024-10-31 22:04:11,555 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:11,555 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:11,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:11,663 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:11,663 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:11,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:11,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:11,667 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:11,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:04:11,669 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 22:04:11,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:11,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:11,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:11,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:11,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:11,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:11,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:11,688 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:11,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:04:11,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:11,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:11,706 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:11,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:04:11,707 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 22:04:11,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:11,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:11,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:11,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:11,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:11,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:11,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:11,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:11,728 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:04:11,729 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:04:11,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:11,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:11,731 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:11,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:04:11,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:11,734 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:04:11,734 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:11,734 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#in~n) = -2*ackermann_#in~n + 1 Supporting invariants [] [2024-10-31 22:04:11,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:11,754 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:04:11,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:11,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:04:11,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:11,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:04:11,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:11,911 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 22:04:11,912 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 22:04:11,913 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 22:04:11,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 22:04:12,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-31 22:04:12,063 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 22:04:12,064 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 22:04:12,065 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 22:04:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2024-10-31 22:04:12,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:04:12,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:12,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 13 letters. Loop has 4 letters. [2024-10-31 22:04:12,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:12,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 8 letters. [2024-10-31 22:04:12,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:12,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 86 transitions. [2024-10-31 22:04:12,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-10-31 22:04:12,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 78 transitions. [2024-10-31 22:04:12,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-10-31 22:04:12,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2024-10-31 22:04:12,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 78 transitions. [2024-10-31 22:04:12,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:12,076 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 78 transitions. [2024-10-31 22:04:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 78 transitions. [2024-10-31 22:04:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2024-10-31 22:04:12,082 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 22:04:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2024-10-31 22:04:12,084 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 68 transitions. [2024-10-31 22:04:12,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:12,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:12,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:12,089 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 22:04:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:12,161 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2024-10-31 22:04:12,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 71 transitions. [2024-10-31 22:04:12,163 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-10-31 22:04:12,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 51 states and 69 transitions. [2024-10-31 22:04:12,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2024-10-31 22:04:12,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2024-10-31 22:04:12,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 69 transitions. [2024-10-31 22:04:12,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:12,167 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 69 transitions. [2024-10-31 22:04:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 69 transitions. [2024-10-31 22:04:12,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2024-10-31 22:04:12,172 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 22:04:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2024-10-31 22:04:12,174 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 59 transitions. [2024-10-31 22:04:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:12,176 INFO L425 stractBuchiCegarLoop]: Abstraction has 43 states and 59 transitions. [2024-10-31 22:04:12,176 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:04:12,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 59 transitions. [2024-10-31 22:04:12,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-10-31 22:04:12,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:12,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:12,180 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:12,180 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2024-10-31 22:04:12,181 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(16, 2);call #Ultimate.allocInit(12, 3); 433#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; 430#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; 431#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 432#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 434#$Ultimate##0 ~m := #in~m;~n := #in~n; 456#L17 assume !(0 == ~m); 457#L20 assume 0 == ~n; 429#L21 call #t~ret4 := ackermann(~m - 1, 1);< 435#$Ultimate##0 [2024-10-31 22:04:12,181 INFO L747 eck$LassoCheckResult]: Loop: 435#$Ultimate##0 ~m := #in~m;~n := #in~n; 436#L17 assume !(0 == ~m); 443#L20 assume !(0 == ~n); 445#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 447#$Ultimate##0 ~m := #in~m;~n := #in~n; 467#L17 assume !(0 == ~m); 468#L20 assume 0 == ~n; 427#L21 call #t~ret4 := ackermann(~m - 1, 1);< 435#$Ultimate##0 [2024-10-31 22:04:12,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1294871280, now seen corresponding path program 3 times [2024-10-31 22:04:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:12,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915870855] [2024-10-31 22:04:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:12,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash 849190460, now seen corresponding path program 1 times [2024-10-31 22:04:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:12,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156127920] [2024-10-31 22:04:12,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:12,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:12,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:12,256 INFO L85 PathProgramCache]: Analyzing trace with hash 400910891, now seen corresponding path program 1 times [2024-10-31 22:04:12,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:12,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352948916] [2024-10-31 22:04:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:12,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:12,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:12,503 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:12,503 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:12,503 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:12,504 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:12,504 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:12,504 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,504 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:12,504 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:12,504 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration3_Loop [2024-10-31 22:04:12,504 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:12,505 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:12,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:12,598 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:12,598 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:12,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,601 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:04:12,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,622 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,622 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 22:04:12,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:12,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,642 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:04:12,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:12,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,671 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:04:12,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:12,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,719 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,719 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 22:04:12,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:12,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,741 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:04:12,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,764 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,764 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 22:04:12,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:12,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,785 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:04:12,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,802 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,802 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 22:04:12,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:12,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,821 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:04:12,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,836 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,837 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 22:04:12,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:12,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,851 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:04:12,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,866 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,866 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 22:04:12,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-31 22:04:12,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,880 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:04:12,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,894 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,894 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 22:04:12,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-31 22:04:12,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:12,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:12,908 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:12,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:04:12,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:12,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:12,923 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:12,923 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 22:04:12,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-31 22:04:13,334 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:13,334 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:13,334 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:13,335 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:13,335 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:13,335 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,335 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:13,335 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:13,335 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration3_Lasso [2024-10-31 22:04:13,335 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:13,335 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:13,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:13,643 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:13,643 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:13,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,645 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:04:13,647 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 22:04:13,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:13,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:13,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:13,672 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:13,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,694 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:04:13,696 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 22:04:13,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:13,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:13,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:13,715 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:13,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,730 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:04:13,732 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 22:04:13,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:13,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:13,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:13,749 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:13,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,769 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:04:13,771 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 22:04:13,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:13,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:13,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:13,791 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:13,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,813 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:04:13,815 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 22:04:13,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:13,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:13,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:13,835 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:13,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,855 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 22:04:13,857 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 22:04:13,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:13,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:13,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:13,877 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:13,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-31 22:04:13,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,898 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 22:04:13,901 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 22:04:13,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:13,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:13,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:13,922 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:13,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:13,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:13,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,943 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 22:04:13,945 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 22:04:13,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:13,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:13,959 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:13,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:13,965 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 22:04:13,965 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:04:13,981 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:14,015 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2024-10-31 22:04:14,016 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 8 variables to zero. [2024-10-31 22:04:14,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:14,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:14,018 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:14,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 22:04:14,020 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:14,038 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 22:04:14,038 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:14,038 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 22:04:14,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-10-31 22:04:14,065 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 22:04:14,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:14,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:04:14,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:14,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:14,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:04:14,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:14,372 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 22:04:14,373 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 22:04:14,373 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 22:04:14,667 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 22:04:14,668 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 22:04:14,669 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 22:04:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2024-10-31 22:04:14,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 9 letters. Loop has 8 letters. [2024-10-31 22:04:14,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:14,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 17 letters. Loop has 8 letters. [2024-10-31 22:04:14,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:14,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 9 letters. Loop has 16 letters. [2024-10-31 22:04:14,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:14,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 196 transitions. [2024-10-31 22:04:14,681 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2024-10-31 22:04:14,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 86 states and 120 transitions. [2024-10-31 22:04:14,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2024-10-31 22:04:14,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-10-31 22:04:14,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 120 transitions. [2024-10-31 22:04:14,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:14,684 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-10-31 22:04:14,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 120 transitions. [2024-10-31 22:04:14,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 70. [2024-10-31 22:04:14,697 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 22:04:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 99 transitions. [2024-10-31 22:04:14,701 INFO L240 hiAutomatonCegarLoop]: Abstraction has 70 states and 99 transitions. [2024-10-31 22:04:14,701 INFO L425 stractBuchiCegarLoop]: Abstraction has 70 states and 99 transitions. [2024-10-31 22:04:14,701 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:04:14,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 99 transitions. [2024-10-31 22:04:14,703 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2024-10-31 22:04:14,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:14,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:14,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:14,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:04:14,704 INFO L745 eck$LassoCheckResult]: Stem: 778#$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(16, 2);call #Ultimate.allocInit(12, 3); 750#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; 747#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; 748#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 749#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 751#$Ultimate##0 ~m := #in~m;~n := #in~n; 805#L17 assume !(0 == ~m); 810#L20 assume 0 == ~n; 765#L21 call #t~ret4 := ackermann(~m - 1, 1);< 767#$Ultimate##0 ~m := #in~m;~n := #in~n; 790#L17 assume !(0 == ~m); 760#L20 [2024-10-31 22:04:14,704 INFO L747 eck$LassoCheckResult]: Loop: 760#L20 assume !(0 == ~n); 753#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 752#$Ultimate##0 ~m := #in~m;~n := #in~n; 754#L17 assume !(0 == ~m); 760#L20 [2024-10-31 22:04:14,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1169214892, now seen corresponding path program 4 times [2024-10-31 22:04:14,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:14,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265843650] [2024-10-31 22:04:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:14,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:14,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2070862, now seen corresponding path program 2 times [2024-10-31 22:04:14,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:14,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609200310] [2024-10-31 22:04:14,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:14,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:14,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1072207327, now seen corresponding path program 2 times [2024-10-31 22:04:14,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:14,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151680468] [2024-10-31 22:04:14,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:14,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:14,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:14,896 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:14,896 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:14,897 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:14,897 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:14,897 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:14,897 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:14,897 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:14,897 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:14,897 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration4_Loop [2024-10-31 22:04:14,897 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:14,897 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:14,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:14,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:15,016 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:15,016 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:15,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,018 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 22:04:15,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,032 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,032 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 22:04:15,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:15,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,048 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:04:15,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,062 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,062 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 22:04:15,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 22:04:15,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,076 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 22:04:15,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,103 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,104 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 22:04:15,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:15,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,117 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-31 22:04:15,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-10-31 22:04:15,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,153 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-10-31 22:04:15,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:15,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,435 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,435 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 22:04:15,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-10-31 22:04:15,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,449 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-10-31 22:04:15,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,463 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,463 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 22:04:15,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-10-31 22:04:15,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:15,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:15,477 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:15,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 22:04:15,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:15,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:15,495 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:15,496 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 22:04:15,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:15,999 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:15,999 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:15,999 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:15,999 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:16,000 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:16,000 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,000 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:16,000 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:16,000 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration4_Lasso [2024-10-31 22:04:16,000 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:16,000 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:16,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,093 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:16,363 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:16,364 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:16,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,367 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 22:04:16,378 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 22:04:16,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,395 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:16,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,415 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-31 22:04:16,417 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 22:04:16,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,435 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:16,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,448 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-10-31 22:04:16,449 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 22:04:16,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:16,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:16,468 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:16,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,487 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-10-31 22:04:16,491 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 22:04:16,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:16,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:16,511 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-10-31 22:04:16,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,531 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-10-31 22:04:16,533 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 22:04:16,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,549 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2024-10-31 22:04:16,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,563 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-10-31 22:04:16,564 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 22:04:16,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:16,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:16,580 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-10-31 22:04:16,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,593 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-10-31 22:04:16,595 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 22:04:16,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:16,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:16,611 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-10-31 22:04:16,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,623 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-10-31 22:04:16,625 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 22:04:16,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,637 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:16,637 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:16,640 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-10-31 22:04:16,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,652 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-10-31 22:04:16,655 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 22:04:16,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,668 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-10-31 22:04:16,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,681 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-10-31 22:04:16,682 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 22:04:16,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,695 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:16,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,710 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-10-31 22:04:16,711 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 22:04:16,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,724 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:16,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,738 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-10-31 22:04:16,740 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 22:04:16,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,753 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-10-31 22:04:16,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,766 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-10-31 22:04:16,767 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 22:04:16,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,779 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:16,779 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:16,784 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-10-31 22:04:16,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,804 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-10-31 22:04:16,805 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 22:04:16,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,821 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:16,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,841 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-10-31 22:04:16,843 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 22:04:16,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,862 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:16,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,882 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-10-31 22:04:16,884 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 22:04:16,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,898 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:16,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,907 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 22:04:16,907 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:04:16,923 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-10-31 22:04:16,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,944 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-10-31 22:04:16,946 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 22:04:16,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:16,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:16,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:16,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:16,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:16,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:16,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:16,965 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:16,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2024-10-31 22:04:16,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:16,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:16,984 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:16,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-10-31 22:04:16,986 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 22:04:17,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:17,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:17,001 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:17,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:17,008 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 22:04:17,008 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:04:17,028 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:17,065 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-10-31 22:04:17,065 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-10-31 22:04:17,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:17,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:17,067 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:17,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-10-31 22:04:17,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:17,088 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 22:04:17,088 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:17,089 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_~n) = 1*ackermann_~n Supporting invariants [1*ackermann_~n >= 0] [2024-10-31 22:04:17,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:17,109 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 22:04:17,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:04:17,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:04:17,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:17,290 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 22:04:17,291 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 22:04:17,291 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 22:04:17,319 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 22:04:17,319 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 22:04:17,320 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 22:04:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2024-10-31 22:04:17,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:04:17,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:17,320 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:17,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:04:17,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:04:17,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:17,503 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 22:04:17,503 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 22:04:17,504 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 22:04:17,541 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 22:04:17,541 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 22:04:17,542 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 22:04:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2024-10-31 22:04:17,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:04:17,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:17,542 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:17,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:04:17,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:04:17,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:17,738 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 22:04:17,739 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 22:04:17,739 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 22:04:17,898 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 22:04:17,899 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 22:04:17,899 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 22:04:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 38 transitions. [2024-10-31 22:04:17,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 38 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:04:17,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:17,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 38 transitions. Stem has 15 letters. Loop has 4 letters. [2024-10-31 22:04:17,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:17,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 38 transitions. Stem has 11 letters. Loop has 8 letters. [2024-10-31 22:04:17,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:17,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 177 transitions. [2024-10-31 22:04:17,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 34 [2024-10-31 22:04:17,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 99 states and 145 transitions. [2024-10-31 22:04:17,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2024-10-31 22:04:17,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2024-10-31 22:04:17,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 145 transitions. [2024-10-31 22:04:17,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:17,909 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 145 transitions. [2024-10-31 22:04:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 145 transitions. [2024-10-31 22:04:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2024-10-31 22:04:17,917 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 22:04:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2024-10-31 22:04:17,919 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-10-31 22:04:17,919 INFO L425 stractBuchiCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-10-31 22:04:17,919 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:04:17,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 137 transitions. [2024-10-31 22:04:17,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2024-10-31 22:04:17,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:17,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:17,922 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:17,922 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:04:17,922 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(16, 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; 1298#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; 1299#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 1300#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 1302#$Ultimate##0 ~m := #in~m;~n := #in~n; 1374#L17 assume !(0 == ~m); 1373#L20 assume !(0 == ~n); 1295#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1369#$Ultimate##0 ~m := #in~m;~n := #in~n; 1387#L17 assume 0 == ~m;#res := 1 + ~n; 1294#ackermannFINAL assume true; 1297#ackermannEXIT >#47#return; 1315#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 1318#$Ultimate##0 [2024-10-31 22:04:17,922 INFO L747 eck$LassoCheckResult]: Loop: 1318#$Ultimate##0 ~m := #in~m;~n := #in~n; 1382#L17 assume !(0 == ~m); 1383#L20 assume !(0 == ~n); 1314#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1318#$Ultimate##0 [2024-10-31 22:04:17,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1471263848, now seen corresponding path program 1 times [2024-10-31 22:04:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:17,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364981858] [2024-10-31 22:04:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:17,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:18,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:04:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:18,064 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 22:04:18,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:18,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364981858] [2024-10-31 22:04:18,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364981858] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:18,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748924663] [2024-10-31 22:04:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:18,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:18,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,068 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-10-31 22:04:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:18,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:04:18,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:18,166 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 22:04:18,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:18,292 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 22:04:18,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748924663] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:18,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:18,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2024-10-31 22:04:18,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499519115] [2024-10-31 22:04:18,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:18,293 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:04:18,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:18,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 3 times [2024-10-31 22:04:18,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:18,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117923264] [2024-10-31 22:04:18,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:18,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:18,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:18,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:18,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:18,361 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:18,361 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:18,362 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:18,362 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:18,362 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:18,362 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,362 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:18,362 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:18,362 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration5_Loop [2024-10-31 22:04:18,362 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:18,362 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:18,363 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:18,451 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:18,451 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:18,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,453 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-10-31 22:04:18,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,467 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,467 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 22:04:18,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-10-31 22:04:18,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,481 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-10-31 22:04:18,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,495 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,495 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 22:04:18,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-10-31 22:04:18,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,509 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-10-31 22:04:18,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,523 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,523 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 22:04:18,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-10-31 22:04:18,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,537 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-10-31 22:04:18,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,551 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,551 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 22:04:18,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:18,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,568 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-10-31 22:04:18,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,591 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,592 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 22:04:18,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2024-10-31 22:04:18,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,605 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-10-31 22:04:18,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,624 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,624 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 22:04:18,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:18,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,646 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-10-31 22:04:18,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:18,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,684 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2024-10-31 22:04:18,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:18,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,795 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,795 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 22:04:18,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2024-10-31 22:04:18,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:18,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,816 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2024-10-31 22:04:18,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:18,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:18,835 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:18,835 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 22:04:18,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:18,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:18,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:04:18,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:04:18,850 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 22:04:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:19,052 INFO L93 Difference]: Finished difference Result 88 states and 121 transitions. [2024-10-31 22:04:19,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 121 transitions. [2024-10-31 22:04:19,054 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 22:04:19,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 86 states and 119 transitions. [2024-10-31 22:04:19,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2024-10-31 22:04:19,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2024-10-31 22:04:19,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 119 transitions. [2024-10-31 22:04:19,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:19,063 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86 states and 119 transitions. [2024-10-31 22:04:19,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 119 transitions. [2024-10-31 22:04:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2024-10-31 22:04:19,083 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 22:04:19,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2024-10-31 22:04:19,085 INFO L240 hiAutomatonCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-10-31 22:04:19,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:04:19,090 INFO L425 stractBuchiCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-10-31 22:04:19,090 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:04:19,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 115 transitions. [2024-10-31 22:04:19,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 22:04:19,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:19,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:19,093 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 22:04:19,093 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:19,093 INFO L745 eck$LassoCheckResult]: Stem: 1613#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 1584#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1581#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 1582#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 1583#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 1585#$Ultimate##0 ~m := #in~m;~n := #in~n; 1633#L17 assume !(0 == ~m); 1630#L20 assume 0 == ~n; 1578#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1586#$Ultimate##0 ~m := #in~m;~n := #in~n; 1587#L17 assume !(0 == ~m); 1659#L20 assume !(0 == ~n); 1609#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1629#$Ultimate##0 ~m := #in~m;~n := #in~n; 1652#L17 assume !(0 == ~m); 1653#L20 assume 0 == ~n; 1608#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1610#$Ultimate##0 ~m := #in~m;~n := #in~n; 1624#L17 assume 0 == ~m;#res := 1 + ~n; 1622#ackermannFINAL assume true; 1614#ackermannEXIT >#45#return; 1616#L21-1 #res := #t~ret4;havoc #t~ret4; 1632#ackermannFINAL assume true; 1628#ackermannEXIT >#47#return; 1619#L23-1 [2024-10-31 22:04:19,093 INFO L747 eck$LassoCheckResult]: Loop: 1619#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 1627#$Ultimate##0 ~m := #in~m;~n := #in~n; 1634#L17 assume !(0 == ~m); 1635#L20 assume 0 == ~n; 1618#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1621#$Ultimate##0 ~m := #in~m;~n := #in~n; 1656#L17 assume !(0 == ~m); 1654#L20 assume !(0 == ~n); 1620#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 1639#$Ultimate##0 ~m := #in~m;~n := #in~n; 1636#L17 assume !(0 == ~m); 1638#L20 assume 0 == ~n; 1618#L21 call #t~ret4 := ackermann(~m - 1, 1);< 1621#$Ultimate##0 ~m := #in~m;~n := #in~n; 1656#L17 assume 0 == ~m;#res := 1 + ~n; 1657#ackermannFINAL assume true; 1640#ackermannEXIT >#45#return; 1616#L21-1 #res := #t~ret4;havoc #t~ret4; 1632#ackermannFINAL assume true; 1628#ackermannEXIT >#47#return; 1619#L23-1 [2024-10-31 22:04:19,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1515043176, now seen corresponding path program 1 times [2024-10-31 22:04:19,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:19,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246215979] [2024-10-31 22:04:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:19,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:19,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:19,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:19,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1028708757, now seen corresponding path program 1 times [2024-10-31 22:04:19,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:19,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749312324] [2024-10-31 22:04:19,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:19,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:19,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:19,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:19,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:19,130 INFO L85 PathProgramCache]: Analyzing trace with hash -591709310, now seen corresponding path program 1 times [2024-10-31 22:04:19,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:19,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890257774] [2024-10-31 22:04:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:19,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:19,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:04:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:19,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:19,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:04:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:19,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:19,403 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 22:04:19,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:19,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890257774] [2024-10-31 22:04:19,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890257774] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:19,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532211779] [2024-10-31 22:04:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:19,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:19,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:19,406 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:19,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-10-31 22:04:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:19,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:04:19,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:19,540 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 22:04:19,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:19,795 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 22:04:19,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532211779] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:19,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:19,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 22:04:19,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974485597] [2024-10-31 22:04:19,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:20,213 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:20,214 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:20,214 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:20,214 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:20,214 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:20,214 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:20,214 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:20,214 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:20,214 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration6_Loop [2024-10-31 22:04:20,214 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:20,215 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:20,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,311 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:20,311 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:20,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:20,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:20,314 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:20,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2024-10-31 22:04:20,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:20,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:20,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2024-10-31 22:04:20,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:20,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:20,351 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:20,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2024-10-31 22:04:20,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:20,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:20,376 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:20,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:20,396 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:20,396 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:20,396 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:20,396 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:20,396 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:20,396 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:20,397 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:20,397 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:20,397 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration6_Loop [2024-10-31 22:04:20,397 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:20,397 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:20,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:20,476 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:20,476 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:20,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:20,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:20,478 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:20,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2024-10-31 22:04:20,479 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 22:04:20,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:20,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:20,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:20,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:20,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:20,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:20,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:20,492 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:20,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2024-10-31 22:04:20,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:20,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:20,504 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:20,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2024-10-31 22:04:20,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:20,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:20,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:20,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:20,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:20,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:20,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:20,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:20,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:20,524 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:04:20,525 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:04:20,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:20,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:20,526 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:20,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2024-10-31 22:04:20,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:20,527 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:04:20,527 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:20,527 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#t~ret5) = -1*ackermann_#t~ret5 + 1 Supporting invariants [] [2024-10-31 22:04:20,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2024-10-31 22:04:20,542 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:04:20,544 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret5 [2024-10-31 22:04:20,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:20,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:04:20,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:20,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 22:04:20,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:20,962 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 22:04:20,963 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 22:04:20,963 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 22:04:21,835 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 22:04:21,836 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 22:04:21,837 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 22:04:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 99 transitions. [2024-10-31 22:04:21,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 99 transitions. Stem has 24 letters. Loop has 20 letters. [2024-10-31 22:04:21,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:21,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 99 transitions. Stem has 44 letters. Loop has 20 letters. [2024-10-31 22:04:21,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:21,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 99 transitions. Stem has 24 letters. Loop has 40 letters. [2024-10-31 22:04:21,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:21,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 560 states and 908 transitions. [2024-10-31 22:04:21,851 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 74 [2024-10-31 22:04:21,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 560 states to 442 states and 715 transitions. [2024-10-31 22:04:21,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2024-10-31 22:04:21,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 259 [2024-10-31 22:04:21,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 442 states and 715 transitions. [2024-10-31 22:04:21,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:21,865 INFO L218 hiAutomatonCegarLoop]: Abstraction has 442 states and 715 transitions. [2024-10-31 22:04:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states and 715 transitions. [2024-10-31 22:04:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 355. [2024-10-31 22:04:21,899 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 22:04:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 560 transitions. [2024-10-31 22:04:21,904 INFO L240 hiAutomatonCegarLoop]: Abstraction has 355 states and 560 transitions. [2024-10-31 22:04:21,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:21,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:04:21,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:04:21,905 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 22:04:22,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2024-10-31 22:04:22,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:22,420 INFO L93 Difference]: Finished difference Result 293 states and 453 transitions. [2024-10-31 22:04:22,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 453 transitions. [2024-10-31 22:04:22,425 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2024-10-31 22:04:22,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 281 states and 439 transitions. [2024-10-31 22:04:22,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 240 [2024-10-31 22:04:22,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 240 [2024-10-31 22:04:22,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 439 transitions. [2024-10-31 22:04:22,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:22,432 INFO L218 hiAutomatonCegarLoop]: Abstraction has 281 states and 439 transitions. [2024-10-31 22:04:22,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 439 transitions. [2024-10-31 22:04:22,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 244. [2024-10-31 22:04:22,450 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 22:04:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 363 transitions. [2024-10-31 22:04:22,452 INFO L240 hiAutomatonCegarLoop]: Abstraction has 244 states and 363 transitions. [2024-10-31 22:04:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:04:22,458 INFO L425 stractBuchiCegarLoop]: Abstraction has 244 states and 363 transitions. [2024-10-31 22:04:22,458 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:04:22,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244 states and 363 transitions. [2024-10-31 22:04:22,460 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2024-10-31 22:04:22,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:22,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:22,463 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 22:04:22,464 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:04:22,464 INFO L745 eck$LassoCheckResult]: Stem: 3567#$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(16, 2);call #Ultimate.allocInit(12, 3); 3528#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#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 3527#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 3529#$Ultimate##0 ~m := #in~m;~n := #in~n; 3591#L17 assume !(0 == ~m); 3654#L20 assume 0 == ~n; 3546#L21 call #t~ret4 := ackermann(~m - 1, 1);< 3583#$Ultimate##0 ~m := #in~m;~n := #in~n; 3581#L17 assume !(0 == ~m); 3582#L20 assume !(0 == ~n); 3572#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3577#$Ultimate##0 ~m := #in~m;~n := #in~n; 3578#L17 assume !(0 == ~m); 3571#L20 assume 0 == ~n; 3573#L21 call #t~ret4 := ackermann(~m - 1, 1);< 3564#$Ultimate##0 ~m := #in~m;~n := #in~n; 3584#L17 assume 0 == ~m;#res := 1 + ~n; 3652#ackermannFINAL assume true; 3641#ackermannEXIT >#45#return; 3642#L21-1 #res := #t~ret4;havoc #t~ret4; 3667#ackermannFINAL assume true; 3666#ackermannEXIT >#47#return; 3569#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 3754#$Ultimate##0 ~m := #in~m;~n := #in~n; 3630#L17 assume !(0 == ~m); 3632#L20 assume !(0 == ~n); 3568#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3570#$Ultimate##0 ~m := #in~m;~n := #in~n; 3629#L17 assume !(0 == ~m); 3623#L20 assume !(0 == ~n); 3614#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3607#$Ultimate##0 [2024-10-31 22:04:22,464 INFO L747 eck$LassoCheckResult]: Loop: 3607#$Ultimate##0 ~m := #in~m;~n := #in~n; 3620#L17 assume !(0 == ~m); 3624#L20 assume !(0 == ~n); 3617#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 3607#$Ultimate##0 [2024-10-31 22:04:22,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:22,464 INFO L85 PathProgramCache]: Analyzing trace with hash 776315954, now seen corresponding path program 2 times [2024-10-31 22:04:22,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:22,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397535481] [2024-10-31 22:04:22,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:22,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:22,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 22:04:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:22,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:22,663 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 22:04:22,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397535481] [2024-10-31 22:04:22,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397535481] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810830426] [2024-10-31 22:04:22,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:04:22,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:22,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:22,666 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:22,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-10-31 22:04:22,723 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:04:22,723 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:22,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 22:04:22,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:22,756 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 22:04:22,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:22,875 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 22:04:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810830426] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:22,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:22,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 10 [2024-10-31 22:04:22,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250719444] [2024-10-31 22:04:22,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:22,876 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:04:22,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 4 times [2024-10-31 22:04:22,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:22,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068677949] [2024-10-31 22:04:22,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:22,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:22,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:22,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:22,942 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:22,942 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:22,942 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:22,942 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:22,942 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:22,942 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:22,943 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:22,943 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:22,943 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration7_Loop [2024-10-31 22:04:22,943 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:22,943 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:22,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:22,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:22,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:22,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:22,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:22,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:22,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:22,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:23,036 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:23,036 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:23,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,037 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2024-10-31 22:04:23,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,051 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,052 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 22:04:23,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2024-10-31 22:04:23,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,065 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2024-10-31 22:04:23,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,078 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,078 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 22:04:23,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2024-10-31 22:04:23,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,093 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2024-10-31 22:04:23,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,107 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,107 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 22:04:23,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:23,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,121 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2024-10-31 22:04:23,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,141 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,141 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 22:04:23,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2024-10-31 22:04:23,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,154 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2024-10-31 22:04:23,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2024-10-31 22:04:23,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,179 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2024-10-31 22:04:23,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:23,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,212 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,212 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 22:04:23,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:23,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,234 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2024-10-31 22:04:23,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,253 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,253 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 22:04:23,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2024-10-31 22:04:23,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,273 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2024-10-31 22:04:23,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,294 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,294 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 22:04:23,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:23,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:23,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:23,315 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:23,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2024-10-31 22:04:23,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:23,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:23,332 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:23,333 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 22:04:23,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2024-10-31 22:04:23,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:23,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:04:23,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:04:23,353 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 22:04:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:23,458 INFO L93 Difference]: Finished difference Result 137 states and 199 transitions. [2024-10-31 22:04:23,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 199 transitions. [2024-10-31 22:04:23,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 22:04:23,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 133 states and 190 transitions. [2024-10-31 22:04:23,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2024-10-31 22:04:23,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2024-10-31 22:04:23,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 190 transitions. [2024-10-31 22:04:23,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:23,464 INFO L218 hiAutomatonCegarLoop]: Abstraction has 133 states and 190 transitions. [2024-10-31 22:04:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 190 transitions. [2024-10-31 22:04:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 116. [2024-10-31 22:04:23,474 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 22:04:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2024-10-31 22:04:23,476 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 167 transitions. [2024-10-31 22:04:23,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:23,477 INFO L425 stractBuchiCegarLoop]: Abstraction has 116 states and 167 transitions. [2024-10-31 22:04:23,477 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:04:23,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 167 transitions. [2024-10-31 22:04:23,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 22:04:23,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:23,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:23,480 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 22:04:23,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-10-31 22:04:23,481 INFO L745 eck$LassoCheckResult]: Stem: 4170#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 4132#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet7#1;main_~m~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 4129#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 3);havoc main_#t~nondet8#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 4130#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 4131#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 4133#$Ultimate##0 ~m := #in~m;~n := #in~n; 4142#L17 assume !(0 == ~m); 4144#L20 assume !(0 == ~n); 4143#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4205#$Ultimate##0 ~m := #in~m;~n := #in~n; 4204#L17 assume !(0 == ~m); 4203#L20 assume 0 == ~n; 4148#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4197#$Ultimate##0 ~m := #in~m;~n := #in~n; 4195#L17 assume !(0 == ~m); 4193#L20 assume !(0 == ~n); 4141#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4180#$Ultimate##0 ~m := #in~m;~n := #in~n; 4198#L17 assume !(0 == ~m); 4172#L20 assume 0 == ~n; 4152#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4161#$Ultimate##0 ~m := #in~m;~n := #in~n; 4196#L17 assume 0 == ~m;#res := 1 + ~n; 4240#ackermannFINAL assume true; 4238#ackermannEXIT >#45#return; 4239#L21-1 #res := #t~ret4;havoc #t~ret4; 4241#ackermannFINAL assume true; 4140#ackermannEXIT >#47#return; 4127#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 4134#$Ultimate##0 ~m := #in~m;~n := #in~n; 4135#L17 assume 0 == ~m;#res := 1 + ~n; 4126#ackermannFINAL assume true; 4128#ackermannEXIT >#49#return; 4185#L23-2 #res := #t~ret6;havoc #t~ret5;havoc #t~ret6; 4228#ackermannFINAL assume true; 4194#ackermannEXIT >#45#return; 4188#L21-1 #res := #t~ret4;havoc #t~ret4; 4186#ackermannFINAL assume true; 4181#ackermannEXIT >#47#return; 4155#L23-1 [2024-10-31 22:04:23,481 INFO L747 eck$LassoCheckResult]: Loop: 4155#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 4168#$Ultimate##0 ~m := #in~m;~n := #in~n; 4173#L17 assume !(0 == ~m); 4171#L20 assume !(0 == ~n); 4156#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4168#$Ultimate##0 ~m := #in~m;~n := #in~n; 4173#L17 assume !(0 == ~m); 4171#L20 assume 0 == ~n; 4146#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4158#$Ultimate##0 ~m := #in~m;~n := #in~n; 4201#L17 assume !(0 == ~m); 4200#L20 assume !(0 == ~n); 4163#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 4169#$Ultimate##0 ~m := #in~m;~n := #in~n; 4209#L17 assume !(0 == ~m); 4207#L20 assume 0 == ~n; 4151#L21 call #t~ret4 := ackermann(~m - 1, 1);< 4158#$Ultimate##0 ~m := #in~m;~n := #in~n; 4201#L17 assume 0 == ~m;#res := 1 + ~n; 4202#ackermannFINAL assume true; 4220#ackermannEXIT >#45#return; 4166#L21-1 #res := #t~ret4;havoc #t~ret4; 4167#ackermannFINAL assume true; 4231#ackermannEXIT >#47#return; 4127#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 4134#$Ultimate##0 ~m := #in~m;~n := #in~n; 4135#L17 assume 0 == ~m;#res := 1 + ~n; 4126#ackermannFINAL assume true; 4128#ackermannEXIT >#49#return; 4185#L23-2 #res := #t~ret6;havoc #t~ret5;havoc #t~ret6; 4228#ackermannFINAL assume true; 4194#ackermannEXIT >#45#return; 4188#L21-1 #res := #t~ret4;havoc #t~ret4; 4186#ackermannFINAL assume true; 4181#ackermannEXIT >#47#return; 4155#L23-1 [2024-10-31 22:04:23,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:23,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1517141230, now seen corresponding path program 1 times [2024-10-31 22:04:23,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:23,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179946208] [2024-10-31 22:04:23,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:23,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:23,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:23,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:23,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:23,502 INFO L85 PathProgramCache]: Analyzing trace with hash 561044667, now seen corresponding path program 1 times [2024-10-31 22:04:23,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:23,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295499340] [2024-10-31 22:04:23,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:23,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:23,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:23,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:23,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:23,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1815031634, now seen corresponding path program 2 times [2024-10-31 22:04:23,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:23,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246470373] [2024-10-31 22:04:23,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:23,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:23,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:04:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:23,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:23,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:23,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:23,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:04:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:23,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:04:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:24,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:24,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:24,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:04:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:24,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:04:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:24,093 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 22:04:24,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:24,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246470373] [2024-10-31 22:04:24,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246470373] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:24,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884553258] [2024-10-31 22:04:24,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:04:24,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:24,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:24,095 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:24,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-10-31 22:04:24,169 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:04:24,169 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:24,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 22:04:24,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:24,262 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 22:04:24,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:25,319 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 22:04:25,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884553258] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:25,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:25,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 15] total 28 [2024-10-31 22:04:25,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211893454] [2024-10-31 22:04:25,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:25,845 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:25,845 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:25,845 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:25,845 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:25,845 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:25,845 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:25,845 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:25,845 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:25,845 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration8_Loop [2024-10-31 22:04:25,845 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:25,845 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:25,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:25,935 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:25,935 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:25,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:25,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:25,936 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:25,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2024-10-31 22:04:25,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:25,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:25,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2024-10-31 22:04:25,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:25,972 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:25,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2024-10-31 22:04:25,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:25,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:25,989 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:04:26,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:26,002 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:26,002 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:26,003 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:26,003 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:26,003 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:26,003 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,003 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:26,003 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:26,003 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration8_Loop [2024-10-31 22:04:26,003 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:26,003 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:26,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:26,135 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:26,135 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:26,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:26,137 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:26,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2024-10-31 22:04:26,144 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 22:04:26,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:26,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:26,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:26,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:26,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:26,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:26,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:26,168 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:26,171 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:04:26,171 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:04:26,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:26,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:26,175 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:26,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2024-10-31 22:04:26,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:26,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:04:26,178 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:26,178 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ackermann_#t~ret5) = -1*ackermann_#t~ret5 + 2 Supporting invariants [] [2024-10-31 22:04:26,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:26,198 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:04:26,201 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret5 [2024-10-31 22:04:26,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:26,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:26,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:04:26,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:26,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 22:04:26,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:27,219 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 22:04:27,220 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 22:04:27,220 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 22:04:27,538 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 22:04:27,543 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 22:04:27,543 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 22:04:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2024-10-31 22:04:27,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 39 letters. Loop has 35 letters. [2024-10-31 22:04:27,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:27,544 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:27,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:27,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:04:27,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 22:04:28,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:28,429 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 22:04:28,430 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 22:04:28,430 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 22:04:28,579 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 22:04:28,581 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 22:04:28,582 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 22:04:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2024-10-31 22:04:28,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 39 letters. Loop has 35 letters. [2024-10-31 22:04:28,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:28,582 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:28,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:04:28,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,481 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 22:04:29,482 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 22:04:29,482 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 22:04:30,663 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 22:04:30,664 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 22:04:30,664 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 22:04:30,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 97 transitions. [2024-10-31 22:04:30,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 97 transitions. Stem has 39 letters. Loop has 35 letters. [2024-10-31 22:04:30,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:30,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 97 transitions. Stem has 74 letters. Loop has 35 letters. [2024-10-31 22:04:30,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:30,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 97 transitions. Stem has 39 letters. Loop has 70 letters. [2024-10-31 22:04:30,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:30,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2760 states and 6214 transitions. [2024-10-31 22:04:30,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2024-10-31 22:04:30,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2760 states to 521 states and 732 transitions. [2024-10-31 22:04:30,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2024-10-31 22:04:30,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 327 [2024-10-31 22:04:30,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 521 states and 732 transitions. [2024-10-31 22:04:30,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:30,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 521 states and 732 transitions. [2024-10-31 22:04:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states and 732 transitions. [2024-10-31 22:04:30,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 447. [2024-10-31 22:04:30,744 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 22:04:30,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 618 transitions. [2024-10-31 22:04:30,747 INFO L240 hiAutomatonCegarLoop]: Abstraction has 447 states and 618 transitions. [2024-10-31 22:04:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:30,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-31 22:04:30,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-10-31 22:04:30,748 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 22:04:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:31,462 INFO L93 Difference]: Finished difference Result 269 states and 352 transitions. [2024-10-31 22:04:31,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 352 transitions. [2024-10-31 22:04:31,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-10-31 22:04:31,469 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 258 states and 338 transitions. [2024-10-31 22:04:31,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2024-10-31 22:04:31,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2024-10-31 22:04:31,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 338 transitions. [2024-10-31 22:04:31,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:04:31,470 INFO L218 hiAutomatonCegarLoop]: Abstraction has 258 states and 338 transitions. [2024-10-31 22:04:31,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 338 transitions. [2024-10-31 22:04:31,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2024-10-31 22:04:31,478 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 22:04:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 323 transitions. [2024-10-31 22:04:31,480 INFO L240 hiAutomatonCegarLoop]: Abstraction has 246 states and 323 transitions. [2024-10-31 22:04:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-31 22:04:31,481 INFO L425 stractBuchiCegarLoop]: Abstraction has 246 states and 323 transitions. [2024-10-31 22:04:31,481 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:04:31,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 323 transitions. [2024-10-31 22:04:31,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-10-31 22:04:31,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:04:31,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:04:31,485 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 22:04:31,485 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:04:31,485 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(16, 2);call #Ultimate.allocInit(12, 3); 10145#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#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 23); 10144#L36 call main_#t~ret9#1 := ackermann(main_~m~0#1, main_~n~0#1);< 10146#$Ultimate##0 ~m := #in~m;~n := #in~n; 10203#L17 assume !(0 == ~m); 10204#L20 assume !(0 == ~n); 10197#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10200#$Ultimate##0 ~m := #in~m;~n := #in~n; 10202#L17 assume !(0 == ~m); 10360#L20 assume !(0 == ~n); 10196#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10200#$Ultimate##0 ~m := #in~m;~n := #in~n; 10201#L17 assume !(0 == ~m); 10195#L20 assume 0 == ~n; 10191#L21 call #t~ret4 := ackermann(~m - 1, 1);< 10193#$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#$Ultimate##0 ~m := #in~m;~n := #in~n; 10251#L17 assume 0 == ~m;#res := 1 + ~n; 10247#ackermannFINAL assume true; 10240#ackermannEXIT >#49#return; 10235#L23-2 #res := #t~ret6;havoc #t~ret5;havoc #t~ret6; 10233#ackermannFINAL assume true; 10225#ackermannEXIT >#45#return; 10226#L21-1 #res := #t~ret4;havoc #t~ret4; 10376#ackermannFINAL assume true; 10359#ackermannEXIT >#47#return; 10164#L23-1 call #t~ret6 := ackermann(~m - 1, #t~ret5);< 10224#$Ultimate##0 ~m := #in~m;~n := #in~n; 10222#L17 assume !(0 == ~m); 10161#L20 assume !(0 == ~n); 10165#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10221#$Ultimate##0 ~m := #in~m;~n := #in~n; 10218#L17 assume !(0 == ~m); 10220#L20 assume !(0 == ~n); 10206#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10210#$Ultimate##0 [2024-10-31 22:04:31,485 INFO L747 eck$LassoCheckResult]: Loop: 10210#$Ultimate##0 ~m := #in~m;~n := #in~n; 10205#L17 assume !(0 == ~m); 10209#L20 assume !(0 == ~n); 10207#L23 call #t~ret5 := ackermann(~m, ~n - 1);< 10210#$Ultimate##0 [2024-10-31 22:04:31,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:31,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1369490833, now seen corresponding path program 3 times [2024-10-31 22:04:31,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:31,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340437632] [2024-10-31 22:04:31,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:31,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:31,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:31,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:31,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1758862, now seen corresponding path program 5 times [2024-10-31 22:04:31,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:31,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811652433] [2024-10-31 22:04:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:31,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:31,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:31,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:31,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:31,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1638192644, now seen corresponding path program 4 times [2024-10-31 22:04:31,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:31,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415536559] [2024-10-31 22:04:31,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:31,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:31,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:31,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:31,602 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:31,602 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:31,602 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:31,602 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:31,602 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:04:31,602 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,602 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:31,602 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:31,602 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration9_Loop [2024-10-31 22:04:31,602 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:31,602 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:31,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:31,677 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:31,677 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:04:31,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,678 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2024-10-31 22:04:31,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,692 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,693 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 22:04:31,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2024-10-31 22:04:31,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,707 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2024-10-31 22:04:31,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,721 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,721 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 22:04:31,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2024-10-31 22:04:31,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,735 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2024-10-31 22:04:31,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,750 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,751 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 22:04:31,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,764 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2024-10-31 22:04:31,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,778 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,778 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 22:04:31,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,791 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2024-10-31 22:04:31,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,811 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,811 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 22:04:31,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2024-10-31 22:04:31,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,826 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2024-10-31 22:04:31,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,862 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2024-10-31 22:04:31,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:04:31,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,934 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,934 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 22:04:31,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2024-10-31 22:04:31,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,948 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2024-10-31 22:04:31,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:31,962 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:31,962 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 22:04:31,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:31,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:31,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,976 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2024-10-31 22:04:31,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:04:31,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:04:32,005 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:04:32,005 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 22:04:32,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Ended with exit code 0 [2024-10-31 22:04:32,891 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:04:32,891 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:04:32,891 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:04:32,892 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:04:32,892 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:04:32,892 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:32,892 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:04:32,892 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:04:32,892 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ackermann01-1.c_Iteration9_Lasso [2024-10-31 22:04:32,892 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:04:32,892 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:04:32,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:32,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:04:33,125 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:04:33,126 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:04:33,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,129 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2024-10-31 22:04:33,131 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 22:04:33,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:33,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:33,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:33,145 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,160 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2024-10-31 22:04:33,161 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 22:04:33,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:33,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:33,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:33,175 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0 [2024-10-31 22:04:33,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,196 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2024-10-31 22:04:33,198 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 22:04:33,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:33,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:33,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:33,216 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,235 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2024-10-31 22:04:33,238 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 22:04:33,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:33,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:33,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:33,263 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,283 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2024-10-31 22:04:33,286 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 22:04:33,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:33,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:33,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:33,301 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,314 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2024-10-31 22:04:33,315 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 22:04:33,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,327 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:33,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,331 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 22:04:33,331 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:04:33,344 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2024-10-31 22:04:33,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,365 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2024-10-31 22:04:33,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:33,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:04:33,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:04:33,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:04:33,388 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2024-10-31 22:04:33,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,410 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2024-10-31 22:04:33,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:33,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:33,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:33,428 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2024-10-31 22:04:33,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,441 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2024-10-31 22:04:33,443 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 22:04:33,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:33,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:33,459 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2024-10-31 22:04:33,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,472 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2024-10-31 22:04:33,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:04:33,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:33,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:33,490 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0 [2024-10-31 22:04:33,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,503 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2024-10-31 22:04:33,505 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 22:04:33,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:04:33,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:04:33,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:04:33,521 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:04:33,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:33,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,535 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2024-10-31 22:04:33,537 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 22:04:33,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:04:33,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:04:33,549 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:04:33,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:04:33,553 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 22:04:33,553 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:04:33,565 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:04:33,585 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-10-31 22:04:33,585 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 8 variables to zero. [2024-10-31 22:04:33,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:04:33,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,586 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2024-10-31 22:04:33,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:04:33,609 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 22:04:33,609 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:04:33,609 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 22:04:33,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Ended with exit code 0 [2024-10-31 22:04:33,624 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 22:04:33,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-31 22:04:33,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:34,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:04:34,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:34,576 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 22:04:34,578 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.15 stem predicates 3 loop predicates [2024-10-31 22:04:34,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 246 states and 323 transitions. cyclomatic complexity: 80 Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 10 states have internal predecessors, (28), 7 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-31 22:04:34,739 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 246 states and 323 transitions. cyclomatic complexity: 80. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 10 states have internal predecessors, (28), 7 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Result 252 states and 333 transitions. Complement of second has 7 states. [2024-10-31 22:04:34,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:04:34,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 10 states have internal predecessors, (28), 7 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-31 22:04:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-10-31 22:04:34,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 52 letters. Loop has 4 letters. [2024-10-31 22:04:34,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:04:34,744 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:04:34,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:34,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-31 22:04:34,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:34,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44152269-ef4a-4308-b804-8587de4a7522/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Ended with exit code 0