./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --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_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/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_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/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_27210b23-1246-424f-873a-0546889f978c/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 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:44,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:44,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:16:44,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:44,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:44,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:44,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:44,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:44,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:16:44,158 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:16:44,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:44,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:44,161 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:44,165 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:16:44,166 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:16:44,166 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:16:44,167 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:16:44,167 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:16:44,167 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:16:44,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:44,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:16:44,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:44,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:44,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:44,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:44,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:16:44,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:16:44,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:16:44,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:44,172 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:44,173 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:44,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:44,173 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:16:44,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:44,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:44,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:44,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:44,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:44,175 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:16:44,176 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_27210b23-1246-424f-873a-0546889f978c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2024-10-31 22:16:44,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:44,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:44,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:44,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:44,476 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:44,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/loop-invgen/id_build.i Unable to find full path for "g++" [2024-10-31 22:16:46,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:46,694 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:46,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/sv-benchmarks/c/loop-invgen/id_build.i [2024-10-31 22:16:46,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/data/deb1500e9/8b2f5c9ac23d4fdeae9771908df32978/FLAG0230a914a [2024-10-31 22:16:46,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/data/deb1500e9/8b2f5c9ac23d4fdeae9771908df32978 [2024-10-31 22:16:46,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:46,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:46,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:46,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:46,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:46,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:46" (1/1) ... [2024-10-31 22:16:46,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28dac573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:46, skipping insertion in model container [2024-10-31 22:16:46,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:46" (1/1) ... [2024-10-31 22:16:46,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:47,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:47,038 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:47,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:47,069 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:47,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47 WrapperNode [2024-10-31 22:16:47,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:47,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:47,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:47,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:47,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,104 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 51 [2024-10-31 22:16:47,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:47,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:47,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:47,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:47,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,131 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:16:47,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:47,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:47,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:47,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:47,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (1/1) ... [2024-10-31 22:16:47,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:47,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:47,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:47,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:16:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:47,292 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:47,294 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:47,423 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-31 22:16:47,423 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:47,434 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:47,434 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:16:47,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:47 BoogieIcfgContainer [2024-10-31 22:16:47,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:47,435 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:16:47,435 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:16:47,439 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:16:47,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:47,440 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:16:46" (1/3) ... [2024-10-31 22:16:47,441 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bfeed3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:47, skipping insertion in model container [2024-10-31 22:16:47,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:47,441 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:47" (2/3) ... [2024-10-31 22:16:47,442 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bfeed3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:47, skipping insertion in model container [2024-10-31 22:16:47,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:47,443 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:47" (3/3) ... [2024-10-31 22:16:47,444 INFO L332 chiAutomizerObserver]: Analyzing ICFG id_build.i [2024-10-31 22:16:47,513 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:16:47,513 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:16:47,513 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:16:47,514 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:16:47,514 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:16:47,514 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:16:47,515 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:16:47,515 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:16:47,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:47,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:16:47,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:47,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:47,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:16:47,543 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:47,544 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:16:47,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:47,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:16:47,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:47,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:47,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:16:47,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:47,552 INFO L745 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 16#L27-3true [2024-10-31 22:16:47,552 INFO L747 eck$LassoCheckResult]: Loop: 16#L27-3true assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 17#L28-3true assume !(main_~j~0#1 < 8); 10#L27-2true main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 16#L27-3true [2024-10-31 22:16:47,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:47,557 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:16:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:47,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450718856] [2024-10-31 22:16:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:47,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:47,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:47,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:47,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash 39955, now seen corresponding path program 1 times [2024-10-31 22:16:47,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:47,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381025648] [2024-10-31 22:16:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:47,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:47,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:47,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381025648] [2024-10-31 22:16:47,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381025648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:47,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:47,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:47,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766985704] [2024-10-31 22:16:47,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:47,777 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:16:47,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:47,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:47,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:47,818 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 22:16:47,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:47,859 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2024-10-31 22:16:47,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2024-10-31 22:16:47,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:16:47,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 16 states and 17 transitions. [2024-10-31 22:16:47,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-31 22:16:47,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-10-31 22:16:47,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2024-10-31 22:16:47,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:47,875 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-10-31 22:16:47,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2024-10-31 22:16:47,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2024-10-31 22:16:47,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 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 22:16:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-10-31 22:16:47,903 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-31 22:16:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:47,908 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-31 22:16:47,908 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:16:47,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2024-10-31 22:16:47,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:16:47,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:47,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:47,910 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:16:47,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:47,910 INFO L745 eck$LassoCheckResult]: Stem: 62#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 63#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 64#L27-3 [2024-10-31 22:16:47,910 INFO L747 eck$LassoCheckResult]: Loop: 64#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 65#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 57#L18 assume !(0 == __VERIFIER_assert_~cond#1); 58#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 59#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 60#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 61#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 66#L28-3 assume !(main_~j~0#1 < 8); 67#L27-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 64#L27-3 [2024-10-31 22:16:47,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:47,911 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-31 22:16:47,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:47,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430948372] [2024-10-31 22:16:47,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:47,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:47,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:47,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:47,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:47,931 INFO L85 PathProgramCache]: Analyzing trace with hash -401152879, now seen corresponding path program 1 times [2024-10-31 22:16:47,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:47,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108443433] [2024-10-31 22:16:47,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:47,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:48,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:48,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108443433] [2024-10-31 22:16:48,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108443433] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:16:48,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230809763] [2024-10-31 22:16:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:48,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:48,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:48,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:16:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:48,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:16:48,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:48,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:48,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:16:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:48,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230809763] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:16:48,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:16:48,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-31 22:16:48,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409861746] [2024-10-31 22:16:48,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:16:48,219 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:16:48,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:48,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:48,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:48,220 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 22:16:48,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:48,273 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2024-10-31 22:16:48,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2024-10-31 22:16:48,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 22:16:48,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2024-10-31 22:16:48,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-10-31 22:16:48,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-10-31 22:16:48,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2024-10-31 22:16:48,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:48,277 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-10-31 22:16:48,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2024-10-31 22:16:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-10-31 22:16:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2024-10-31 22:16:48,280 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-10-31 22:16:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:48,282 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-10-31 22:16:48,282 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:16:48,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 30 transitions. [2024-10-31 22:16:48,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2024-10-31 22:16:48,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:48,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:48,284 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:16:48,284 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-10-31 22:16:48,284 INFO L745 eck$LassoCheckResult]: Stem: 160#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 162#L27-3 [2024-10-31 22:16:48,285 INFO L747 eck$LassoCheckResult]: Loop: 162#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 163#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 182#L18 assume !(0 == __VERIFIER_assert_~cond#1); 156#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 157#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 158#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 159#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 164#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 154#L18 assume !(0 == __VERIFIER_assert_~cond#1); 155#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 181#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 180#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 179#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 178#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 177#L18 assume !(0 == __VERIFIER_assert_~cond#1); 176#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 175#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 174#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 173#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 172#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 167#L18 assume !(0 == __VERIFIER_assert_~cond#1); 171#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 170#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 169#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 168#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 166#L28-3 assume !(main_~j~0#1 < 8); 165#L27-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 162#L27-3 [2024-10-31 22:16:48,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:48,286 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-10-31 22:16:48,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:48,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168252948] [2024-10-31 22:16:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:48,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:48,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:48,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:48,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash -620742901, now seen corresponding path program 2 times [2024-10-31 22:16:48,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:48,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054575691] [2024-10-31 22:16:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:48,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:48,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:48,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054575691] [2024-10-31 22:16:48,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054575691] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:16:48,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940285919] [2024-10-31 22:16:48,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:16:48,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:48,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:48,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:48,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:16:48,702 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:16:48,702 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:16:48,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:16:48,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:48,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:16:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:48,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940285919] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:16:48,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:16:48,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-10-31 22:16:48,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866535970] [2024-10-31 22:16:48,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:16:48,950 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:16:48,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:48,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:16:48,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:16:48,953 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:49,006 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2024-10-31 22:16:49,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 54 transitions. [2024-10-31 22:16:49,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2024-10-31 22:16:49,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 54 transitions. [2024-10-31 22:16:49,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2024-10-31 22:16:49,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2024-10-31 22:16:49,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 54 transitions. [2024-10-31 22:16:49,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:49,010 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2024-10-31 22:16:49,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 54 transitions. [2024-10-31 22:16:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-10-31 22:16:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 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 22:16:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2024-10-31 22:16:49,018 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2024-10-31 22:16:49,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:16:49,020 INFO L425 stractBuchiCegarLoop]: Abstraction has 53 states and 54 transitions. [2024-10-31 22:16:49,021 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:16:49,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 54 transitions. [2024-10-31 22:16:49,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2024-10-31 22:16:49,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:49,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:49,023 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:16:49,023 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 8, 8, 8, 8, 1, 1, 1] [2024-10-31 22:16:49,023 INFO L745 eck$LassoCheckResult]: Stem: 411#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 412#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 413#L27-3 [2024-10-31 22:16:49,023 INFO L747 eck$LassoCheckResult]: Loop: 413#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 414#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 457#L18 assume !(0 == __VERIFIER_assert_~cond#1); 407#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 408#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 409#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 410#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 415#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 405#L18 assume !(0 == __VERIFIER_assert_~cond#1); 406#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 456#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 455#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 454#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 453#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 452#L18 assume !(0 == __VERIFIER_assert_~cond#1); 451#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 450#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 449#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 448#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 447#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 446#L18 assume !(0 == __VERIFIER_assert_~cond#1); 445#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 444#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 443#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 442#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 441#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 440#L18 assume !(0 == __VERIFIER_assert_~cond#1); 439#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 438#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 437#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 436#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 435#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 434#L18 assume !(0 == __VERIFIER_assert_~cond#1); 433#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 432#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 431#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 430#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 429#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 428#L18 assume !(0 == __VERIFIER_assert_~cond#1); 427#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 426#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 425#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 424#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 423#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 418#L18 assume !(0 == __VERIFIER_assert_~cond#1); 422#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 421#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 420#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 419#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 417#L28-3 assume !(main_~j~0#1 < 8); 416#L27-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 413#L27-3 [2024-10-31 22:16:49,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-10-31 22:16:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:49,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9404325] [2024-10-31 22:16:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:49,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:49,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:49,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:49,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2044958205, now seen corresponding path program 3 times [2024-10-31 22:16:49,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:49,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440447633] [2024-10-31 22:16:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:49,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:49,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:49,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:49,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:49,111 INFO L85 PathProgramCache]: Analyzing trace with hash -837778687, now seen corresponding path program 1 times [2024-10-31 22:16:49,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:49,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142000574] [2024-10-31 22:16:49,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:49,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:49,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:49,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:49,997 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:49,998 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:49,998 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:49,998 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:49,998 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:49,998 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:49,999 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:49,999 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:49,999 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2024-10-31 22:16:49,999 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:49,999 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:50,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,108 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:50,109 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:50,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:16:50,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:50,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:50,144 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:50,145 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:50,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:50,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:16:50,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:50,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:50,184 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:50,185 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:50,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:16:50,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,206 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:16:50,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:50,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:50,229 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:50,229 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:50,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:16:50,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,251 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:16:50,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:50,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:50,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:16:50,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:16:50,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:50,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:50,377 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:50,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:16:50,382 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:50,382 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:50,383 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:50,383 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:50,383 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:50,383 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,383 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:50,383 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:50,383 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2024-10-31 22:16:50,383 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:50,384 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:50,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:50,448 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:50,452 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:50,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:16:50,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:50,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:50,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:50,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:50,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:50,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:50,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:50,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:50,478 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:50,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:16:50,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,499 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:16:50,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:50,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:50,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:50,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:50,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:50,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:50,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:50,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:50,525 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:50,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:16:50,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:16:50,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:50,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:50,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:50,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:50,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:50,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:50,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:50,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:50,562 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:50,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:50,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,582 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:16:50,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:50,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:50,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:50,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:50,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:50,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:50,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:50,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:50,605 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:50,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:16:50,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,625 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:16:50,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:50,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:50,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:50,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:50,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:50,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:50,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:50,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:50,643 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:50,649 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-31 22:16:50,649 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:16:50,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:50,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:50,653 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:50,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:16:50,655 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:50,655 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:50,656 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:50,656 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nlen~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~nlen~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:16:50,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:16:50,681 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:50,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:50,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:50,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:50,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:50,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:51,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-10-31 22:16:51,159 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 22:16:51,161 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2 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 22:16:51,211 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2. 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 104 states and 107 transitions. Complement of second has 4 states. [2024-10-31 22:16:51,213 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 22:16:51,214 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 22:16:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-10-31 22:16:51,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 51 letters. [2024-10-31 22:16:51,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:51,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 53 letters. Loop has 51 letters. [2024-10-31 22:16:51,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:51,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 102 letters. [2024-10-31 22:16:51,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:51,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 107 transitions. [2024-10-31 22:16:51,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:16:51,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 103 states and 106 transitions. [2024-10-31 22:16:51,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2024-10-31 22:16:51,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-10-31 22:16:51,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 106 transitions. [2024-10-31 22:16:51,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:16:51,230 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 106 transitions. [2024-10-31 22:16:51,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 106 transitions. [2024-10-31 22:16:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2024-10-31 22:16:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.05) internal successors, (63), 59 states have internal predecessors, (63), 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 22:16:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2024-10-31 22:16:51,242 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 63 transitions. [2024-10-31 22:16:51,242 INFO L425 stractBuchiCegarLoop]: Abstraction has 60 states and 63 transitions. [2024-10-31 22:16:51,242 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:16:51,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 63 transitions. [2024-10-31 22:16:51,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:16:51,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:51,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:51,244 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:16:51,244 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:16:51,244 INFO L745 eck$LassoCheckResult]: Stem: 751#$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(9, 2); 752#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 753#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 755#L28-3 [2024-10-31 22:16:51,244 INFO L747 eck$LassoCheckResult]: Loop: 755#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 740#L18 assume !(0 == __VERIFIER_assert_~cond#1); 741#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 744#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 746#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 747#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 755#L28-3 [2024-10-31 22:16:51,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:51,245 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-10-31 22:16:51,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:51,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452043668] [2024-10-31 22:16:51,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:51,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:51,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:51,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:51,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:51,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1433472511, now seen corresponding path program 1 times [2024-10-31 22:16:51,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:51,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533803201] [2024-10-31 22:16:51,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:51,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:51,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:51,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:51,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash -174789083, now seen corresponding path program 1 times [2024-10-31 22:16:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:51,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013388166] [2024-10-31 22:16:51,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:51,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:51,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:51,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:51,378 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:51,378 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:51,378 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:51,378 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:51,378 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:51,378 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,378 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:51,378 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:51,378 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2024-10-31 22:16:51,378 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:51,378 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:51,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,445 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:51,446 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:51,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,449 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:16:51,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:51,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:51,468 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:51,469 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:51,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:16:51,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,491 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:16:51,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:51,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:51,516 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:51,516 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:51,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:51,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,537 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:16:51,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:51,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:51,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:16:51,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,580 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:16:51,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:51,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:51,628 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:51,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:16:51,633 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:51,633 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:51,633 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:51,633 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:51,633 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:51,633 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,633 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:51,633 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:51,634 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2024-10-31 22:16:51,634 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:51,634 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:51,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:51,696 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:51,696 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:51,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,698 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:16:51,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:51,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:51,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:51,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:51,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:51,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:51,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:51,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:51,719 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:51,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:16:51,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,740 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:16:51,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:51,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:51,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:51,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:51,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:51,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:51,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:51,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:51,763 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:51,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:51,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,784 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:16:51,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:51,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:51,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:51,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:51,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:51,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:51,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:51,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:51,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:51,813 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:16:51,813 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:16:51,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:51,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:51,816 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:51,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:16:51,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:51,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:51,818 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:51,818 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2024-10-31 22:16:51,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:16:51,838 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:51,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:51,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:51,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:51,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:51,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:51,909 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 22:16:51,910 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 22:16:51,934 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 161 states and 167 transitions. Complement of second has 5 states. [2024-10-31 22:16:51,935 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 22:16:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 22:16:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:16:51,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-31 22:16:51,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:51,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 6 letters. [2024-10-31 22:16:51,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:51,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 12 letters. [2024-10-31 22:16:51,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:51,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 167 transitions. [2024-10-31 22:16:51,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:16:51,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 109 states and 112 transitions. [2024-10-31 22:16:51,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-31 22:16:51,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-31 22:16:51,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 112 transitions. [2024-10-31 22:16:51,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:16:51,941 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 112 transitions. [2024-10-31 22:16:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 112 transitions. [2024-10-31 22:16:51,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 60. [2024-10-31 22:16:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 59 states have internal predecessors, (62), 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 22:16:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2024-10-31 22:16:51,946 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 62 transitions. [2024-10-31 22:16:51,946 INFO L425 stractBuchiCegarLoop]: Abstraction has 60 states and 62 transitions. [2024-10-31 22:16:51,946 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:16:51,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 62 transitions. [2024-10-31 22:16:51,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:16:51,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:51,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:51,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1] [2024-10-31 22:16:51,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:16:51,948 INFO L745 eck$LassoCheckResult]: Stem: 1018#$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(9, 2); 1019#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 1020#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1021#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1010#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1011#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1013#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1016#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1017#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1024#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1067#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1066#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1065#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1064#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1063#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1062#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1061#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1060#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1059#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1058#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1057#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1056#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1055#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1054#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1053#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1052#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1051#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1050#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1049#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1048#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1047#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1046#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1045#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1044#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1043#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1042#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1041#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1040#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1039#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1038#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1037#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1036#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1035#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1034#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1033#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1032#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1027#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1031#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1030#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1029#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1028#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1026#L28-3 assume !(main_~j~0#1 < 8); 1025#L27-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1022#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1023#L28-3 [2024-10-31 22:16:51,949 INFO L747 eck$LassoCheckResult]: Loop: 1023#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1008#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1009#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1012#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1014#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1015#L28-2 main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1023#L28-3 [2024-10-31 22:16:51,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:51,949 INFO L85 PathProgramCache]: Analyzing trace with hash -201335511, now seen corresponding path program 2 times [2024-10-31 22:16:51,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:51,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354447216] [2024-10-31 22:16:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:51,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:51,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:52,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:52,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1433472511, now seen corresponding path program 2 times [2024-10-31 22:16:52,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:52,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89323051] [2024-10-31 22:16:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:52,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:52,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:52,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:52,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:52,022 INFO L85 PathProgramCache]: Analyzing trace with hash 324037927, now seen corresponding path program 3 times [2024-10-31 22:16:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:52,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409705285] [2024-10-31 22:16:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:52,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:52,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:52,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:52,145 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:52,145 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:52,145 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:52,145 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:52,145 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:52,145 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,145 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:52,146 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:52,146 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2024-10-31 22:16:52,146 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:52,146 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:52,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,203 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:52,204 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:16:52,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,206 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:16:52,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:52,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:52,229 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:52,229 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:52,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:52,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,250 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:16:52,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:52,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:52,277 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:16:52,277 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:16:52,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:52,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,297 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:16:52,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:16:52,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:52,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:16:52,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,339 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:16:52,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:16:52,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:16:52,390 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:16:52,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:52,394 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:52,394 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:52,394 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:52,394 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:52,394 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:16:52,394 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,394 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:52,394 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:52,394 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2024-10-31 22:16:52,394 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:52,394 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:52,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:52,462 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:16:52,462 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:16:52,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,466 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:16:52,468 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 22:16:52,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:52,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:52,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:52,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:52,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:52,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:52,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:52,488 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:52,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:52,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,508 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:16:52,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:52,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:52,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:52,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:52,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:52,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:52,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:52,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:52,534 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:16:52,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:16:52,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,555 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:16:52,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:16:52,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:16:52,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:16:52,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:16:52,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:16:52,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:16:52,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:16:52,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:16:52,578 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:16:52,583 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:16:52,583 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:16:52,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:52,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:52,585 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:52,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:16:52,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:16:52,588 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:16:52,588 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:16:52,588 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2024-10-31 22:16:52,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-31 22:16:52,607 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:16:52,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:52,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:52,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:52,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:52,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:52,804 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 22:16:52,805 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:16:52,863 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 149 states and 153 transitions. Complement of second has 5 states. [2024-10-31 22:16:52,863 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 22:16:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:16:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:16:52,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 54 letters. Loop has 6 letters. [2024-10-31 22:16:52,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:52,865 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:16:52,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:52,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:52,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:16:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:52,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:52,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:53,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:53,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:53,228 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 22:16:53,229 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:16:53,260 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 149 states and 153 transitions. Complement of second has 5 states. [2024-10-31 22:16:53,263 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 22:16:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:16:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:16:53,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 54 letters. Loop has 6 letters. [2024-10-31 22:16:53,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:53,265 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:16:53,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:53,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:16:53,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:53,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:16:53,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:53,485 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 22:16:53,485 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:16:53,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 106 states and 110 transitions. Complement of second has 4 states. [2024-10-31 22:16:53,510 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 22:16:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:16:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2024-10-31 22:16:53,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 54 letters. Loop has 6 letters. [2024-10-31 22:16:53,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:53,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 60 letters. Loop has 6 letters. [2024-10-31 22:16:53,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:53,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 54 letters. Loop has 12 letters. [2024-10-31 22:16:53,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:16:53,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 110 transitions. [2024-10-31 22:16:53,521 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:16:53,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 0 states and 0 transitions. [2024-10-31 22:16:53,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:16:53,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:16:53,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:16:53,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:53,522 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:16:53,522 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:16:53,522 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:16:53,522 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:16:53,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:16:53,522 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:16:53,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:16:53,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:16:53 BoogieIcfgContainer [2024-10-31 22:16:53,545 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:16:53,546 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:16:53,546 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:16:53,546 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:16:53,547 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:47" (3/4) ... [2024-10-31 22:16:53,553 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:16:53,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:16:53,561 INFO L158 Benchmark]: Toolchain (without parser) took 6812.91ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 132.5MB in the beginning and 138.0MB in the end (delta: -5.5MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-10-31 22:16:53,561 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:16:53,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.39ms. Allocated memory is still 169.9MB. Free memory was 132.5MB in the beginning and 120.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:16:53,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.37ms. Allocated memory is still 169.9MB. Free memory was 120.7MB in the beginning and 119.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:16:53,563 INFO L158 Benchmark]: Boogie Preprocessor took 41.89ms. Allocated memory is still 169.9MB. Free memory was 119.0MB in the beginning and 117.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:16:53,563 INFO L158 Benchmark]: RCFGBuilder took 286.27ms. Allocated memory is still 169.9MB. Free memory was 117.1MB in the beginning and 106.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:16:53,564 INFO L158 Benchmark]: BuchiAutomizer took 6110.33ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 106.7MB in the beginning and 139.0MB in the end (delta: -32.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-10-31 22:16:53,564 INFO L158 Benchmark]: Witness Printer took 7.99ms. Allocated memory is still 205.5MB. Free memory was 139.0MB in the beginning and 138.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:16:53,573 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.39ms. Allocated memory is still 169.9MB. Free memory was 132.5MB in the beginning and 120.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.37ms. Allocated memory is still 169.9MB. Free memory was 120.7MB in the beginning and 119.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.89ms. Allocated memory is still 169.9MB. Free memory was 119.0MB in the beginning and 117.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.27ms. Allocated memory is still 169.9MB. Free memory was 117.1MB in the beginning and 106.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 6110.33ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 106.7MB in the beginning and 139.0MB in the end (delta: -32.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 7.99ms. Allocated memory is still 205.5MB. Free memory was 139.0MB in the beginning and 138.0MB in the end (delta: 1.0MB). 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + nlen) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * j) + 15) and consists of 3 locations. One nondeterministic module has affine ranking function (((long long) -2 * j) + 15) and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 7 iterations. TraceHistogramMax:8. Analysis of lassos took 4.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 97 StatesRemovedByMinimization, 3 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 176/176 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 78 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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 22:16:53,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:16:53,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:16:54,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27210b23-1246-424f-873a-0546889f978c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE