./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-simple/nested_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/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_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-simple/nested_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a30debb45adf4eb2040807436dec0136066a492a6c11eb0dbebd1f179f328d9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:33,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:33,972 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 21:58:33,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:33,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:34,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:34,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:34,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:34,025 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:58:34,027 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:58:34,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:34,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:34,030 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:34,030 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 21:58:34,031 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 21:58:34,031 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 21:58:34,031 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 21:58:34,031 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 21:58:34,032 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 21:58:34,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:34,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 21:58:34,037 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:58:34,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:58:34,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:58:34,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:34,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 21:58:34,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 21:58:34,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 21:58:34,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:34,039 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:58:34,040 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:58:34,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:34,040 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 21:58:34,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:34,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:34,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:34,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:34,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:58:34,044 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 21:58:34,044 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_cd4e1390-9b92-426c-abfa-cc7a5a471e78/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a30debb45adf4eb2040807436dec0136066a492a6c11eb0dbebd1f179f328d9 [2024-10-31 21:58:34,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:34,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:34,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:34,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:34,417 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:34,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/loop-simple/nested_3.c Unable to find full path for "g++" [2024-10-31 21:58:36,513 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:36,726 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:36,726 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/sv-benchmarks/c/loop-simple/nested_3.c [2024-10-31 21:58:36,735 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/data/28ab39acd/bef27a2922c04213be6a0ca180838b52/FLAG4bd64e99a [2024-10-31 21:58:36,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/data/28ab39acd/bef27a2922c04213be6a0ca180838b52 [2024-10-31 21:58:36,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:36,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:36,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:36,761 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:36,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:36,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:36" (1/1) ... [2024-10-31 21:58:36,769 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab88883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:36, skipping insertion in model container [2024-10-31 21:58:36,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:36" (1/1) ... [2024-10-31 21:58:36,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:37,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:37,042 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:37,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:37,078 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:37,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37 WrapperNode [2024-10-31 21:58:37,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:37,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:37,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:37,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:37,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,113 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2024-10-31 21:58:37,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:37,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:37,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:37,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:37,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,128 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,140 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:58:37,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:37,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:37,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:37,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:37,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:37,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:37,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:37,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:37,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:37,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:58:37,302 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:37,305 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:37,451 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-31 21:58:37,451 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:37,462 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:37,462 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 21:58:37,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:37 BoogieIcfgContainer [2024-10-31 21:58:37,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:37,464 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 21:58:37,464 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 21:58:37,467 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 21:58:37,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:58:37,468 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 09:58:36" (1/3) ... [2024-10-31 21:58:37,469 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a803e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:58:37, skipping insertion in model container [2024-10-31 21:58:37,469 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:58:37,469 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (2/3) ... [2024-10-31 21:58:37,470 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a803e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:58:37, skipping insertion in model container [2024-10-31 21:58:37,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:58:37,470 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:37" (3/3) ... [2024-10-31 21:58:37,472 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested_3.c [2024-10-31 21:58:37,523 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 21:58:37,523 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 21:58:37,524 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 21:58:37,524 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 21:58:37,524 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 21:58:37,524 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 21:58:37,524 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 21:58:37,524 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 21:58:37,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:37,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 21:58:37,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:37,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:37,549 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:58:37,549 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 21:58:37,549 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 21:58:37,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:37,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 21:58:37,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:37,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:37,552 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:58:37,552 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 21:58:37,560 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 3#L21-3true [2024-10-31 21:58:37,561 INFO L747 eck$LassoCheckResult]: Loop: 3#L21-3true assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 11#L22-3true assume !(main_~b~0#1 < 6); 13#L21-2true main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1; 3#L21-3true [2024-10-31 21:58:37,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:37,568 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 21:58:37,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:37,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282004719] [2024-10-31 21:58:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:37,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:37,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:37,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:37,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:37,759 INFO L85 PathProgramCache]: Analyzing trace with hash 39933, now seen corresponding path program 1 times [2024-10-31 21:58:37,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:37,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942491084] [2024-10-31 21:58:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:37,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:37,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:37,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942491084] [2024-10-31 21:58:37,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942491084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:37,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:37,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:37,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134404960] [2024-10-31 21:58:37,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:37,896 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:58:37,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:37,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:37,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:37,960 INFO L87 Difference]: Start difference. First operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:38,001 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-10-31 21:58:38,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2024-10-31 21:58:38,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 21:58:38,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 15 transitions. [2024-10-31 21:58:38,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 21:58:38,012 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 21:58:38,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2024-10-31 21:58:38,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:58:38,013 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-31 21:58:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2024-10-31 21:58:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2024-10-31 21:58:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2024-10-31 21:58:38,048 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2024-10-31 21:58:38,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:38,056 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2024-10-31 21:58:38,057 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 21:58:38,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2024-10-31 21:58:38,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-31 21:58:38,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:38,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:38,059 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:58:38,059 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:58:38,060 INFO L745 eck$LassoCheckResult]: Stem: 44#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 45#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 40#L21-3 [2024-10-31 21:58:38,060 INFO L747 eck$LassoCheckResult]: Loop: 40#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 41#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 43#L23-3 assume !(main_~c~0#1 < 6); 47#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 48#L22-3 assume !(main_~b~0#1 < 6); 46#L21-2 main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1; 40#L21-3 [2024-10-31 21:58:38,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:38,062 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-31 21:58:38,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:38,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347518180] [2024-10-31 21:58:38,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:38,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:38,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:38,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:38,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1191164837, now seen corresponding path program 1 times [2024-10-31 21:58:38,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:38,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514077587] [2024-10-31 21:58:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:38,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:38,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:38,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:38,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514077587] [2024-10-31 21:58:38,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514077587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:38,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:38,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:58:38,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636105204] [2024-10-31 21:58:38,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:38,155 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:58:38,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:38,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:38,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:38,157 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:38,178 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2024-10-31 21:58:38,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2024-10-31 21:58:38,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 21:58:38,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2024-10-31 21:58:38,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 21:58:38,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 21:58:38,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2024-10-31 21:58:38,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:58:38,181 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-31 21:58:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2024-10-31 21:58:38,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-10-31 21:58:38,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:38,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2024-10-31 21:58:38,183 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2024-10-31 21:58:38,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:38,185 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2024-10-31 21:58:38,185 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 21:58:38,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2024-10-31 21:58:38,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-31 21:58:38,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:38,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:38,187 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:58:38,187 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:38,188 INFO L745 eck$LassoCheckResult]: Stem: 70#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 71#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 66#L21-3 [2024-10-31 21:58:38,188 INFO L747 eck$LassoCheckResult]: Loop: 66#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 67#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 72#L23-3 assume !!(main_~c~0#1 < 6); 68#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 69#L23-3 assume !(main_~c~0#1 < 6); 74#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 75#L22-3 assume !(main_~b~0#1 < 6); 73#L21-2 main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1; 66#L21-3 [2024-10-31 21:58:38,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-10-31 21:58:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:38,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441561398] [2024-10-31 21:58:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:38,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:38,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:38,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:38,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1993060441, now seen corresponding path program 1 times [2024-10-31 21:58:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:38,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335466235] [2024-10-31 21:58:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:38,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:38,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335466235] [2024-10-31 21:58:38,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335466235] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:58:38,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962811603] [2024-10-31 21:58:38,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:38,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:38,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:38,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:58:38,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:58:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:38,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:58:38,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:38,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:58:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962811603] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:58:38,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:58:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-31 21:58:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185643526] [2024-10-31 21:58:38,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:58:38,446 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:58:38,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:38,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:58:38,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:38,448 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:38,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:38,484 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2024-10-31 21:58:38,485 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2024-10-31 21:58:38,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 21:58:38,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 18 transitions. [2024-10-31 21:58:38,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-31 21:58:38,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-10-31 21:58:38,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2024-10-31 21:58:38,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:58:38,490 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-10-31 21:58:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2024-10-31 21:58:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-31 21:58:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-10-31 21:58:38,495 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-10-31 21:58:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:58:38,497 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-10-31 21:58:38,498 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 21:58:38,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2024-10-31 21:58:38,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 21:58:38,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:38,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:38,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:58:38,501 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:38,502 INFO L745 eck$LassoCheckResult]: Stem: 147#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 143#L21-3 [2024-10-31 21:58:38,502 INFO L747 eck$LassoCheckResult]: Loop: 143#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 144#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 149#L23-3 assume !!(main_~c~0#1 < 6); 145#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 146#L23-3 assume !!(main_~c~0#1 < 6); 158#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 157#L23-3 assume !!(main_~c~0#1 < 6); 156#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 155#L23-3 assume !!(main_~c~0#1 < 6); 154#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 153#L23-3 assume !(main_~c~0#1 < 6); 151#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 152#L22-3 assume !(main_~b~0#1 < 6); 150#L21-2 main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1; 143#L21-3 [2024-10-31 21:58:38,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-10-31 21:58:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89657725] [2024-10-31 21:58:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:38,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:38,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:38,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:38,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1917011795, now seen corresponding path program 2 times [2024-10-31 21:58:38,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:38,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446689217] [2024-10-31 21:58:38,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:38,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-31 21:58:38,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:38,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446689217] [2024-10-31 21:58:38,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446689217] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:58:38,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769469995] [2024-10-31 21:58:38,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:58:38,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:38,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:38,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:58:38,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:58:38,745 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:58:38,746 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:58:38,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:58:38,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:38,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:58:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769469995] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:58:39,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:58:39,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2024-10-31 21:58:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069924068] [2024-10-31 21:58:39,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:58:39,017 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:58:39,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:39,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 21:58:39,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:58:39,020 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. cyclomatic complexity: 3 Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:39,273 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2024-10-31 21:58:39,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 53 transitions. [2024-10-31 21:58:39,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2024-10-31 21:58:39,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 53 transitions. [2024-10-31 21:58:39,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-10-31 21:58:39,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-10-31 21:58:39,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 53 transitions. [2024-10-31 21:58:39,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:58:39,278 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 53 transitions. [2024-10-31 21:58:39,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 53 transitions. [2024-10-31 21:58:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2024-10-31 21:58:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-10-31 21:58:39,282 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-10-31 21:58:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-31 21:58:39,283 INFO L425 stractBuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-10-31 21:58:39,284 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 21:58:39,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 38 transitions. [2024-10-31 21:58:39,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2024-10-31 21:58:39,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:39,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:39,286 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:58:39,286 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [12, 12, 2, 2, 2, 1, 1, 1] [2024-10-31 21:58:39,286 INFO L745 eck$LassoCheckResult]: Stem: 327#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 328#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 323#L21-3 [2024-10-31 21:58:39,287 INFO L747 eck$LassoCheckResult]: Loop: 323#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 324#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 348#L23-3 assume !!(main_~c~0#1 < 6); 347#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 346#L23-3 assume !!(main_~c~0#1 < 6); 345#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 344#L23-3 assume !!(main_~c~0#1 < 6); 343#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 342#L23-3 assume !!(main_~c~0#1 < 6); 341#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 340#L23-3 assume !!(main_~c~0#1 < 6); 339#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 338#L23-3 assume !!(main_~c~0#1 < 6); 337#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 336#L23-3 assume !(main_~c~0#1 < 6); 333#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 330#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 331#L23-3 assume !!(main_~c~0#1 < 6); 325#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 326#L23-3 assume !!(main_~c~0#1 < 6); 329#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 357#L23-3 assume !!(main_~c~0#1 < 6); 356#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 355#L23-3 assume !!(main_~c~0#1 < 6); 354#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 353#L23-3 assume !!(main_~c~0#1 < 6); 352#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 351#L23-3 assume !!(main_~c~0#1 < 6); 350#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 349#L23-3 assume !(main_~c~0#1 < 6); 335#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 334#L22-3 assume !(main_~b~0#1 < 6); 332#L21-2 main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1; 323#L21-3 [2024-10-31 21:58:39,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:39,287 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-10-31 21:58:39,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:39,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799466848] [2024-10-31 21:58:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:39,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:39,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:39,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:39,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:39,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1010871677, now seen corresponding path program 3 times [2024-10-31 21:58:39,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:39,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226429503] [2024-10-31 21:58:39,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:39,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-31 21:58:39,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:39,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226429503] [2024-10-31 21:58:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226429503] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:58:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537698638] [2024-10-31 21:58:39,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 21:58:39,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:39,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:39,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:58:39,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 21:58:39,582 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-10-31 21:58:39,582 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:58:39,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:39,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-31 21:58:39,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:58:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-31 21:58:39,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537698638] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:58:39,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:58:39,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 21:58:39,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041521991] [2024-10-31 21:58:39,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:58:39,820 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:58:39,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:39,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:58:39,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:58:39,821 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. cyclomatic complexity: 4 Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:39,884 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-10-31 21:58:39,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 102 transitions. [2024-10-31 21:58:39,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2024-10-31 21:58:39,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 95 states and 102 transitions. [2024-10-31 21:58:39,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2024-10-31 21:58:39,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2024-10-31 21:58:39,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 102 transitions. [2024-10-31 21:58:39,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:58:39,892 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 102 transitions. [2024-10-31 21:58:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 102 transitions. [2024-10-31 21:58:39,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-10-31 21:58:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.0736842105263158) internal successors, (102), 94 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2024-10-31 21:58:39,906 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 102 transitions. [2024-10-31 21:58:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:58:39,909 INFO L425 stractBuchiCegarLoop]: Abstraction has 95 states and 102 transitions. [2024-10-31 21:58:39,909 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 21:58:39,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 102 transitions. [2024-10-31 21:58:39,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2024-10-31 21:58:39,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:39,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:39,915 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:58:39,916 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [36, 36, 6, 6, 6, 1, 1, 1] [2024-10-31 21:58:39,916 INFO L745 eck$LassoCheckResult]: Stem: 660#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 656#L21-3 [2024-10-31 21:58:39,916 INFO L747 eck$LassoCheckResult]: Loop: 656#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 657#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 662#L23-3 assume !!(main_~c~0#1 < 6); 658#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 659#L23-3 assume !!(main_~c~0#1 < 6); 747#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 745#L23-3 assume !!(main_~c~0#1 < 6); 743#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 741#L23-3 assume !!(main_~c~0#1 < 6); 739#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 737#L23-3 assume !!(main_~c~0#1 < 6); 735#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 733#L23-3 assume !!(main_~c~0#1 < 6); 731#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 730#L23-3 assume !(main_~c~0#1 < 6); 664#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 665#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 750#L23-3 assume !!(main_~c~0#1 < 6); 749#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 748#L23-3 assume !!(main_~c~0#1 < 6); 746#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 744#L23-3 assume !!(main_~c~0#1 < 6); 742#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 740#L23-3 assume !!(main_~c~0#1 < 6); 738#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 736#L23-3 assume !!(main_~c~0#1 < 6); 734#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 732#L23-3 assume !!(main_~c~0#1 < 6); 729#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 728#L23-3 assume !(main_~c~0#1 < 6); 727#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 726#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 725#L23-3 assume !!(main_~c~0#1 < 6); 724#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 723#L23-3 assume !!(main_~c~0#1 < 6); 722#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 721#L23-3 assume !!(main_~c~0#1 < 6); 720#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 719#L23-3 assume !!(main_~c~0#1 < 6); 718#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 717#L23-3 assume !!(main_~c~0#1 < 6); 716#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 715#L23-3 assume !!(main_~c~0#1 < 6); 714#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 713#L23-3 assume !(main_~c~0#1 < 6); 712#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 711#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 710#L23-3 assume !!(main_~c~0#1 < 6); 709#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 708#L23-3 assume !!(main_~c~0#1 < 6); 707#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 706#L23-3 assume !!(main_~c~0#1 < 6); 705#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 704#L23-3 assume !!(main_~c~0#1 < 6); 703#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 702#L23-3 assume !!(main_~c~0#1 < 6); 701#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 700#L23-3 assume !!(main_~c~0#1 < 6); 699#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 698#L23-3 assume !(main_~c~0#1 < 6); 697#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 696#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 695#L23-3 assume !!(main_~c~0#1 < 6); 694#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 693#L23-3 assume !!(main_~c~0#1 < 6); 692#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 691#L23-3 assume !!(main_~c~0#1 < 6); 690#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 689#L23-3 assume !!(main_~c~0#1 < 6); 688#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 687#L23-3 assume !!(main_~c~0#1 < 6); 686#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 685#L23-3 assume !!(main_~c~0#1 < 6); 684#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 683#L23-3 assume !(main_~c~0#1 < 6); 682#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 681#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 667#L23-3 assume !!(main_~c~0#1 < 6); 680#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 679#L23-3 assume !!(main_~c~0#1 < 6); 678#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 677#L23-3 assume !!(main_~c~0#1 < 6); 676#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 675#L23-3 assume !!(main_~c~0#1 < 6); 674#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 673#L23-3 assume !!(main_~c~0#1 < 6); 672#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 671#L23-3 assume !!(main_~c~0#1 < 6); 670#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 669#L23-3 assume !(main_~c~0#1 < 6); 668#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 666#L22-3 assume !(main_~b~0#1 < 6); 663#L21-2 main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1; 656#L21-3 [2024-10-31 21:58:39,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2024-10-31 21:58:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430053319] [2024-10-31 21:58:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:39,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:39,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:39,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:39,941 INFO L85 PathProgramCache]: Analyzing trace with hash -655757187, now seen corresponding path program 4 times [2024-10-31 21:58:39,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:39,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623463390] [2024-10-31 21:58:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:39,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:39,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:40,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:40,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1993610245, now seen corresponding path program 1 times [2024-10-31 21:58:40,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:40,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553984012] [2024-10-31 21:58:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:40,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:40,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:40,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:41,458 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:41,458 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:41,459 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:41,459 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:41,459 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:58:41,459 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,459 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:41,460 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:41,460 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop [2024-10-31 21:58:41,460 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:41,460 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:41,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,593 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:41,594 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:58:41,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:41,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:41,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 21:58:41,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:41,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:41,637 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:58:41,637 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre5#1=0} Honda state: {ULTIMATE.start_main_#t~pre5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:58:41,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 21:58:41,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:41,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:41,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 21:58:41,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:41,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:41,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 21:58:41,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:41,726 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:41,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 21:58:41,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:58:41,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:41,780 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:58:41,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 21:58:41,784 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:41,784 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:41,784 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:41,784 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:41,784 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:58:41,784 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,785 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:41,785 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:41,785 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop [2024-10-31 21:58:41,785 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:41,785 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:41,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:41,864 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:41,869 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:58:41,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:41,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:41,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 21:58:41,875 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 21:58:41,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:41,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:41,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:41,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:41,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:41,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:41,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:41,900 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:58:41,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 21:58:41,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:41,925 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:41,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 21:58:41,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:41,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:41,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:41,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:41,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:41,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:41,951 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:41,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:41,955 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:58:41,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:41,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:41,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:41,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:41,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 21:58:41,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:42,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:42,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:42,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:42,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:42,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:42,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:42,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:42,006 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:58:42,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:42,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:42,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:42,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:42,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 21:58:42,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:42,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:42,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:42,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:42,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:42,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:42,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:42,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:42,053 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:58:42,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 21:58:42,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:42,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:42,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:42,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 21:58:42,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:42,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:42,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:42,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:42,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:42,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:42,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:42,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:42,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:58:42,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:58:42,102 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:58:42,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:42,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:42,106 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:42,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 21:58:42,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:58:42,110 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:58:42,111 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:58:42,111 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 11 Supporting invariants [] [2024-10-31 21:58:42,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:42,134 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:58:42,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:42,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:42,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:42,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:42,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1527 trivial. 0 not checked. [2024-10-31 21:58:42,903 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:42,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 102 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:42,959 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 102 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 188 states and 203 transitions. Complement of second has 4 states. [2024-10-31 21:58:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-10-31 21:58:42,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 93 letters. [2024-10-31 21:58:42,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:42,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 95 letters. Loop has 93 letters. [2024-10-31 21:58:42,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:42,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 186 letters. [2024-10-31 21:58:42,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:42,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 203 transitions. [2024-10-31 21:58:42,983 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 25 [2024-10-31 21:58:42,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 187 states and 202 transitions. [2024-10-31 21:58:42,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2024-10-31 21:58:42,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2024-10-31 21:58:42,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 202 transitions. [2024-10-31 21:58:42,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:58:42,985 INFO L218 hiAutomatonCegarLoop]: Abstraction has 187 states and 202 transitions. [2024-10-31 21:58:42,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 202 transitions. [2024-10-31 21:58:42,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 111. [2024-10-31 21:58:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.09009009009009) internal successors, (121), 110 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2024-10-31 21:58:42,994 INFO L240 hiAutomatonCegarLoop]: Abstraction has 111 states and 121 transitions. [2024-10-31 21:58:42,994 INFO L425 stractBuchiCegarLoop]: Abstraction has 111 states and 121 transitions. [2024-10-31 21:58:42,994 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 21:58:42,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 121 transitions. [2024-10-31 21:58:42,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-10-31 21:58:42,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:42,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:42,997 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 21:58:42,997 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 1, 1, 1] [2024-10-31 21:58:42,997 INFO L745 eck$LassoCheckResult]: Stem: 1251#$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(11, 2);call #Ultimate.allocInit(12, 3); 1252#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 1243#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 1245#L22-3 [2024-10-31 21:58:42,997 INFO L747 eck$LassoCheckResult]: Loop: 1245#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 1253#L23-3 assume !!(main_~c~0#1 < 6); 1247#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 1248#L23-3 assume !!(main_~c~0#1 < 6); 1353#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 1352#L23-3 assume !!(main_~c~0#1 < 6); 1351#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 1350#L23-3 assume !!(main_~c~0#1 < 6); 1349#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 1348#L23-3 assume !!(main_~c~0#1 < 6); 1347#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 1346#L23-3 assume !!(main_~c~0#1 < 6); 1345#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 1344#L23-3 assume !(main_~c~0#1 < 6); 1257#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 1245#L22-3 [2024-10-31 21:58:42,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:42,998 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-10-31 21:58:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:42,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988733355] [2024-10-31 21:58:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:42,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:43,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,020 INFO L85 PathProgramCache]: Analyzing trace with hash -706979195, now seen corresponding path program 1 times [2024-10-31 21:58:43,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:43,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899455111] [2024-10-31 21:58:43,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:43,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:43,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,045 INFO L85 PathProgramCache]: Analyzing trace with hash 855328031, now seen corresponding path program 1 times [2024-10-31 21:58:43,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:43,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254626610] [2024-10-31 21:58:43,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:43,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:43,200 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:43,200 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:43,200 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:43,200 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:43,201 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:58:43,201 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,201 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:43,201 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:43,201 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop [2024-10-31 21:58:43,201 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:43,201 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:43,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 21:58:43,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,268 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:43,268 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:58:43,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 21:58:43,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:43,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:43,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 21:58:43,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,323 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 21:58:43,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:58:43,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:43,378 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:58:43,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 21:58:43,384 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:43,385 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:43,385 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:43,385 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:43,385 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:58:43,385 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,385 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:43,385 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:43,385 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop [2024-10-31 21:58:43,386 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:43,386 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:43,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,439 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:43,439 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:58:43,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,442 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 21:58:43,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:43,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:43,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:43,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:43,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:43,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:43,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:43,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:43,470 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:58:43,474 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:58:43,474 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:58:43,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,477 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 21:58:43,480 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:58:43,480 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:58:43,480 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:58:43,480 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11 Supporting invariants [] [2024-10-31 21:58:43,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 21:58:43,502 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:58:43,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:43,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:43,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:43,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:43,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:43,638 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 21:58:43,639 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:43,639 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 121 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:43,672 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 121 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 320 states and 348 transitions. Complement of second has 7 states. [2024-10-31 21:58:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-31 21:58:43,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 15 letters. [2024-10-31 21:58:43,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:43,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 18 letters. Loop has 15 letters. [2024-10-31 21:58:43,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:43,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 30 letters. [2024-10-31 21:58:43,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:43,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 348 transitions. [2024-10-31 21:58:43,680 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-10-31 21:58:43,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 233 states and 254 transitions. [2024-10-31 21:58:43,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2024-10-31 21:58:43,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2024-10-31 21:58:43,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 254 transitions. [2024-10-31 21:58:43,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:58:43,683 INFO L218 hiAutomatonCegarLoop]: Abstraction has 233 states and 254 transitions. [2024-10-31 21:58:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 254 transitions. [2024-10-31 21:58:43,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 129. [2024-10-31 21:58:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.1007751937984496) internal successors, (142), 128 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:43,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2024-10-31 21:58:43,692 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 142 transitions. [2024-10-31 21:58:43,692 INFO L425 stractBuchiCegarLoop]: Abstraction has 129 states and 142 transitions. [2024-10-31 21:58:43,692 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 21:58:43,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 142 transitions. [2024-10-31 21:58:43,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-10-31 21:58:43,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:43,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:43,694 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 21:58:43,694 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:58:43,695 INFO L745 eck$LassoCheckResult]: Stem: 1760#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 1761#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 1751#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 1753#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 1757#L23-3 [2024-10-31 21:58:43,695 INFO L747 eck$LassoCheckResult]: Loop: 1757#L23-3 assume !!(main_~c~0#1 < 6); 1756#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 1757#L23-3 [2024-10-31 21:58:43,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,695 INFO L85 PathProgramCache]: Analyzing trace with hash 925771, now seen corresponding path program 1 times [2024-10-31 21:58:43,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:43,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470498636] [2024-10-31 21:58:43,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:43,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:43,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1795, now seen corresponding path program 1 times [2024-10-31 21:58:43,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:43,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195609206] [2024-10-31 21:58:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:43,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:43,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash 889666765, now seen corresponding path program 1 times [2024-10-31 21:58:43,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:43,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101750159] [2024-10-31 21:58:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:43,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:43,758 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:43,759 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:43,759 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:43,759 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:43,759 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:58:43,759 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,759 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:43,759 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:43,759 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop [2024-10-31 21:58:43,760 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:43,760 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:43,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,792 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:43,792 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:58:43,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,795 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 21:58:43,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:43,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:43,819 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:58:43,820 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre4#1=0} Honda state: {ULTIMATE.start_main_#t~pre4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:58:43,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 21:58:43,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,839 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 21:58:43,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:43,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:43,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:43,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,869 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 21:58:43,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:58:43,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:43,911 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:58:43,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 21:58:43,916 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:43,916 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:43,916 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:43,916 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:43,916 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:58:43,916 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,916 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:43,916 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:43,917 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop [2024-10-31 21:58:43,917 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:43,917 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:43,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:43,955 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:43,955 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:58:43,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,958 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 21:58:43,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:43,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:43,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:43,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:43,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:43,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:43,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:43,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:43,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:58:43,987 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:58:43,988 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:58:43,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:43,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:43,991 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:43,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 21:58:43,997 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:58:43,998 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:58:43,998 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:58:43,998 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = -2*ULTIMATE.start_main_~c~0#1 + 11 Supporting invariants [] [2024-10-31 21:58:44,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:44,013 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:58:44,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,062 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:44,081 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:44,081 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 142 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,124 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 142 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180 states and 199 transitions. Complement of second has 7 states. [2024-10-31 21:58:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 21:58:44,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 21:58:44,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 21:58:44,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-31 21:58:44,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 199 transitions. [2024-10-31 21:58:44,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-10-31 21:58:44,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 160 states and 175 transitions. [2024-10-31 21:58:44,135 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-10-31 21:58:44,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-31 21:58:44,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 175 transitions. [2024-10-31 21:58:44,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:58:44,136 INFO L218 hiAutomatonCegarLoop]: Abstraction has 160 states and 175 transitions. [2024-10-31 21:58:44,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 175 transitions. [2024-10-31 21:58:44,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 129. [2024-10-31 21:58:44,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.0930232558139534) internal successors, (141), 128 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 141 transitions. [2024-10-31 21:58:44,157 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 141 transitions. [2024-10-31 21:58:44,157 INFO L425 stractBuchiCegarLoop]: Abstraction has 129 states and 141 transitions. [2024-10-31 21:58:44,157 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 21:58:44,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 141 transitions. [2024-10-31 21:58:44,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-10-31 21:58:44,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:44,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:44,159 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 2, 1, 1, 1, 1, 1] [2024-10-31 21:58:44,159 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 21:58:44,159 INFO L745 eck$LassoCheckResult]: Stem: 2110#$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(11, 2);call #Ultimate.allocInit(12, 3); 2111#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 2101#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 2103#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 2112#L23-3 assume !!(main_~c~0#1 < 6); 2108#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 2109#L23-3 assume !!(main_~c~0#1 < 6); 2228#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 2226#L23-3 assume !!(main_~c~0#1 < 6); 2224#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 2222#L23-3 assume !!(main_~c~0#1 < 6); 2220#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 2218#L23-3 assume !!(main_~c~0#1 < 6); 2216#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 2214#L23-3 assume !!(main_~c~0#1 < 6); 2211#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 2210#L23-3 assume !(main_~c~0#1 < 6); 2207#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 2147#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 2107#L23-3 [2024-10-31 21:58:44,159 INFO L747 eck$LassoCheckResult]: Loop: 2107#L23-3 assume !!(main_~c~0#1 < 6); 2106#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 2107#L23-3 [2024-10-31 21:58:44,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash 745365203, now seen corresponding path program 2 times [2024-10-31 21:58:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:44,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805949046] [2024-10-31 21:58:44,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:44,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:44,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:44,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:44,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1795, now seen corresponding path program 2 times [2024-10-31 21:58:44,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:44,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412894995] [2024-10-31 21:58:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:44,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:44,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:44,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:44,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -963577515, now seen corresponding path program 3 times [2024-10-31 21:58:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:44,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697834090] [2024-10-31 21:58:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:44,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:44,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:44,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:44,239 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:44,239 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:44,239 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:44,239 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:44,239 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:58:44,239 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,239 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:44,239 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:44,240 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop [2024-10-31 21:58:44,240 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:44,240 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:44,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:44,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:44,271 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:44,271 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:58:44,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:44,274 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:44,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 21:58:44,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:44,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:44,299 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:58:44,299 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre4#1=0} Honda state: {ULTIMATE.start_main_#t~pre4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:58:44,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:44,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:44,323 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:44,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 21:58:44,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:44,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:44,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:44,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:44,370 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:44,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 21:58:44,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:58:44,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:44,421 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:58:44,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:44,426 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:44,426 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:44,426 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:44,426 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:44,426 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:58:44,427 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,427 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:44,427 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:44,427 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop [2024-10-31 21:58:44,427 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:44,427 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:44,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:44,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:44,463 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:44,463 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:58:44,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:44,466 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:44,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 21:58:44,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:44,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:44,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:44,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:44,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:44,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:44,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:44,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:44,486 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:58:44,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:44,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:44,504 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:44,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 21:58:44,505 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 21:58:44,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:44,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:44,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:44,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:44,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:44,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:44,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:44,525 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:58:44,562 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:58:44,562 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:58:44,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:44,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:44,565 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:44,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 21:58:44,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:58:44,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:58:44,568 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:58:44,568 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = -2*ULTIMATE.start_main_~c~0#1 + 11 Supporting invariants [] [2024-10-31 21:58:44,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:44,590 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:58:44,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,666 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:44,687 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:44,687 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,718 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 176 states and 193 transitions. Complement of second has 7 states. [2024-10-31 21:58:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 21:58:44,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 19 letters. Loop has 2 letters. [2024-10-31 21:58:44,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,720 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:58:44,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,790 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:44,809 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:44,810 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 176 states and 193 transitions. Complement of second has 7 states. [2024-10-31 21:58:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:44,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 21:58:44,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 19 letters. Loop has 2 letters. [2024-10-31 21:58:44,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,841 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:58:44,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,926 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:44,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:44,948 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:44,948 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,981 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 200 states and 221 transitions. Complement of second has 6 states. [2024-10-31 21:58:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-31 21:58:44,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 2 letters. [2024-10-31 21:58:44,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 21 letters. Loop has 2 letters. [2024-10-31 21:58:44,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 4 letters. [2024-10-31 21:58:44,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:44,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 200 states and 221 transitions. [2024-10-31 21:58:44,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-10-31 21:58:44,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 200 states to 112 states and 121 transitions. [2024-10-31 21:58:44,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 21:58:44,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 21:58:44,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 121 transitions. [2024-10-31 21:58:44,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:58:44,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 112 states and 121 transitions. [2024-10-31 21:58:44,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states and 121 transitions. [2024-10-31 21:58:44,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-10-31 21:58:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.0810810810810811) internal successors, (120), 110 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 120 transitions. [2024-10-31 21:58:45,005 INFO L240 hiAutomatonCegarLoop]: Abstraction has 111 states and 120 transitions. [2024-10-31 21:58:45,005 INFO L425 stractBuchiCegarLoop]: Abstraction has 111 states and 120 transitions. [2024-10-31 21:58:45,005 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-10-31 21:58:45,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 120 transitions. [2024-10-31 21:58:45,006 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-10-31 21:58:45,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:58:45,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:58:45,009 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [36, 36, 6, 6, 6, 2, 1, 1, 1, 1] [2024-10-31 21:58:45,009 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 1, 1, 1] [2024-10-31 21:58:45,010 INFO L745 eck$LassoCheckResult]: Stem: 3015#$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(11, 2);call #Ultimate.allocInit(12, 3); 3016#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 3009#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 3010#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3119#L23-3 assume !!(main_~c~0#1 < 6); 3118#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3117#L23-3 assume !!(main_~c~0#1 < 6); 3115#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3113#L23-3 assume !!(main_~c~0#1 < 6); 3111#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3109#L23-3 assume !!(main_~c~0#1 < 6); 3107#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3105#L23-3 assume !!(main_~c~0#1 < 6); 3103#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3101#L23-3 assume !!(main_~c~0#1 < 6); 3098#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3097#L23-3 assume !(main_~c~0#1 < 6); 3023#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3020#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3019#L23-3 assume !!(main_~c~0#1 < 6); 3013#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3014#L23-3 assume !!(main_~c~0#1 < 6); 3116#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3114#L23-3 assume !!(main_~c~0#1 < 6); 3112#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3110#L23-3 assume !!(main_~c~0#1 < 6); 3108#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3106#L23-3 assume !!(main_~c~0#1 < 6); 3104#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3102#L23-3 assume !!(main_~c~0#1 < 6); 3100#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3099#L23-3 assume !(main_~c~0#1 < 6); 3096#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3095#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3094#L23-3 assume !!(main_~c~0#1 < 6); 3093#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3092#L23-3 assume !!(main_~c~0#1 < 6); 3091#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3090#L23-3 assume !!(main_~c~0#1 < 6); 3089#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3088#L23-3 assume !!(main_~c~0#1 < 6); 3087#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3086#L23-3 assume !!(main_~c~0#1 < 6); 3085#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3084#L23-3 assume !!(main_~c~0#1 < 6); 3083#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3082#L23-3 assume !(main_~c~0#1 < 6); 3081#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3080#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3079#L23-3 assume !!(main_~c~0#1 < 6); 3078#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3077#L23-3 assume !!(main_~c~0#1 < 6); 3076#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3075#L23-3 assume !!(main_~c~0#1 < 6); 3074#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3073#L23-3 assume !!(main_~c~0#1 < 6); 3072#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3071#L23-3 assume !!(main_~c~0#1 < 6); 3070#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3069#L23-3 assume !!(main_~c~0#1 < 6); 3068#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3067#L23-3 assume !(main_~c~0#1 < 6); 3066#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3065#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3064#L23-3 assume !!(main_~c~0#1 < 6); 3063#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3062#L23-3 assume !!(main_~c~0#1 < 6); 3061#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3060#L23-3 assume !!(main_~c~0#1 < 6); 3059#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3058#L23-3 assume !!(main_~c~0#1 < 6); 3057#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3056#L23-3 assume !!(main_~c~0#1 < 6); 3055#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3054#L23-3 assume !!(main_~c~0#1 < 6); 3053#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3052#L23-3 assume !(main_~c~0#1 < 6); 3051#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3050#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3027#L23-3 assume !!(main_~c~0#1 < 6); 3049#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3048#L23-3 assume !!(main_~c~0#1 < 6); 3047#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3046#L23-3 assume !!(main_~c~0#1 < 6); 3044#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3042#L23-3 assume !!(main_~c~0#1 < 6); 3040#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3038#L23-3 assume !!(main_~c~0#1 < 6); 3036#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3034#L23-3 assume !!(main_~c~0#1 < 6); 3031#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3030#L23-3 assume !(main_~c~0#1 < 6); 3028#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3026#L22-3 assume !(main_~b~0#1 < 6); 3021#L21-2 main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1; 3011#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 3012#L22-3 [2024-10-31 21:58:45,010 INFO L747 eck$LassoCheckResult]: Loop: 3012#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3017#L23-3 assume !!(main_~c~0#1 < 6); 3018#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3045#L23-3 assume !!(main_~c~0#1 < 6); 3043#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3041#L23-3 assume !!(main_~c~0#1 < 6); 3039#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3037#L23-3 assume !!(main_~c~0#1 < 6); 3035#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3033#L23-3 assume !!(main_~c~0#1 < 6); 3032#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3029#L23-3 assume !!(main_~c~0#1 < 6); 3025#L23-2 main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1; 3024#L23-3 assume !(main_~c~0#1 < 6); 3022#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3012#L22-3 [2024-10-31 21:58:45,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:45,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1672375441, now seen corresponding path program 2 times [2024-10-31 21:58:45,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:45,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110030580] [2024-10-31 21:58:45,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:45,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:45,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 21:58:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:45,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:45,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 21:58:45,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:45,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:45,116 INFO L85 PathProgramCache]: Analyzing trace with hash -706979195, now seen corresponding path program 2 times [2024-10-31 21:58:45,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:45,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468713856] [2024-10-31 21:58:45,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:45,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:45,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:45,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:45,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:45,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:45,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1669350057, now seen corresponding path program 3 times [2024-10-31 21:58:45,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:45,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837133166] [2024-10-31 21:58:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:45,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:45,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:45,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:45,296 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:45,296 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:45,296 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:45,297 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:45,297 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:58:45,297 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:45,297 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:45,297 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:45,297 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop [2024-10-31 21:58:45,297 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:45,297 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:45,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,357 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:45,357 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:58:45,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:45,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:45,360 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:45,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 21:58:45,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:58:45,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:45,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-31 21:58:45,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:45,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:45,406 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:45,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 21:58:45,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:58:45,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:58:45,452 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:58:45,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:45,456 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:58:45,456 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:58:45,456 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:58:45,456 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:58:45,457 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:58:45,457 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:45,457 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:58:45,457 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:58:45,457 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop [2024-10-31 21:58:45,457 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:58:45,457 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:58:45,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:58:45,515 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:58:45,515 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:58:45,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:45,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:45,520 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:45,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 21:58:45,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 21:58:45,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:58:45,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:58:45,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:58:45,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:58:45,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:58:45,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:58:45,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:58:45,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:58:45,549 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:58:45,549 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:58:45,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:58:45,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:45,552 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:45,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 21:58:45,554 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:58:45,554 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:58:45,554 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:58:45,554 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11 Supporting invariants [] [2024-10-31 21:58:45,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:45,575 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:58:45,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:45,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:45,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:45,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:45,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 21:58:45,914 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:45,914 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:45,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 290 states and 314 transitions. Complement of second has 7 states. [2024-10-31 21:58:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:45,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:45,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-31 21:58:45,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 96 letters. Loop has 15 letters. [2024-10-31 21:58:45,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:45,944 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:58:45,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:46,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:46,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 21:58:46,233 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:46,233 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:46,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 290 states and 314 transitions. Complement of second has 7 states. [2024-10-31 21:58:46,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-31 21:58:46,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 96 letters. Loop has 15 letters. [2024-10-31 21:58:46,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:46,253 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:58:46,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:58:46,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:46,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:58:46,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:46,558 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 21:58:46,559 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:58:46,559 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:46,581 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 212 states and 230 transitions. Complement of second has 6 states. [2024-10-31 21:58:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:58:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-31 21:58:46,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 96 letters. Loop has 15 letters. [2024-10-31 21:58:46,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:46,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 111 letters. Loop has 15 letters. [2024-10-31 21:58:46,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:46,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 96 letters. Loop has 30 letters. [2024-10-31 21:58:46,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:58:46,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 230 transitions. [2024-10-31 21:58:46,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 21:58:46,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 0 states and 0 transitions. [2024-10-31 21:58:46,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 21:58:46,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 21:58:46,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 21:58:46,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:58:46,588 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 21:58:46,588 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 21:58:46,588 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 21:58:46,588 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-10-31 21:58:46,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 21:58:46,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 21:58:46,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 21:58:46,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 09:58:46 BoogieIcfgContainer [2024-10-31 21:58:46,596 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 21:58:46,596 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:58:46,596 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:58:46,597 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:58:46,597 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:37" (3/4) ... [2024-10-31 21:58:46,600 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 21:58:46,601 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:58:46,601 INFO L158 Benchmark]: Toolchain (without parser) took 9844.39ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 110.5MB in the beginning and 163.8MB in the end (delta: -53.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-10-31 21:58:46,602 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:58:46,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.42ms. Allocated memory is still 146.8MB. Free memory was 109.9MB in the beginning and 116.8MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 21:58:46,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 146.8MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:46,603 INFO L158 Benchmark]: Boogie Preprocessor took 36.73ms. Allocated memory is still 146.8MB. Free memory was 115.3MB in the beginning and 113.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:46,603 INFO L158 Benchmark]: RCFGBuilder took 311.31ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 103.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 21:58:46,604 INFO L158 Benchmark]: BuchiAutomizer took 9132.26ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 103.5MB in the beginning and 163.8MB in the end (delta: -60.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-10-31 21:58:46,604 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 211.8MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:58:46,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.42ms. Allocated memory is still 146.8MB. Free memory was 109.9MB in the beginning and 116.8MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.42ms. Allocated memory is still 146.8MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.73ms. Allocated memory is still 146.8MB. Free memory was 115.3MB in the beginning and 113.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.31ms. Allocated memory is still 146.8MB. Free memory was 113.3MB in the beginning and 103.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 9132.26ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 103.5MB in the beginning and 163.8MB in the end (delta: -60.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 211.8MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * a) + 11) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * b) + 11) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -2 * c) + 11) and consists of 4 locations. One nondeterministic module has affine ranking function (((long long) -2 * c) + 11) and consists of 4 locations. One nondeterministic module has affine ranking function (((long long) -2 * b) + 11) and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.0s and 11 iterations. TraceHistogramMax:36. Analysis of lassos took 5.8s. Construction of modules took 0.2s. Büchi inclusion checks took 2.8s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 4. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 230 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1599/1599 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 123 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI5 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 21:58:46,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 21:58:46,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 21:58:47,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:47,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd4e1390-9b92-426c-abfa-cc7a5a471e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE