./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/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_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:04,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:04,443 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:09:04,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:04,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:04,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:04,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:04,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:04,495 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:09:04,497 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:09:04,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:04,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:04,500 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:04,501 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:09:04,501 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:09:04,504 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:09:04,504 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:09:04,505 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:09:04,505 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:09:04,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:04,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:09:04,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:09:04,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:04,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:09:04,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:09:04,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:09:04,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:04,516 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:09:04,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:04,517 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:09:04,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:04,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:04,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:04,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:04,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:09:04,519 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:09:04,520 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_663988dd-1397-4e2c-b029-a0b1a0439103/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 [2024-10-31 22:09:04,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:04,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:04,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:04,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:04,890 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:04,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/NO_04.c Unable to find full path for "g++" [2024-10-31 22:09:07,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:07,646 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:07,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/sv-benchmarks/c/termination-restricted-15/NO_04.c [2024-10-31 22:09:07,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/data/9ec76ca59/494fc2ac53134f1f8c7532cedd2e1af9/FLAG2a1fe5b50 [2024-10-31 22:09:07,675 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/data/9ec76ca59/494fc2ac53134f1f8c7532cedd2e1af9 [2024-10-31 22:09:07,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:07,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:07,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:07,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:07,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:07,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:07" (1/1) ... [2024-10-31 22:09:07,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4953ca4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:07, skipping insertion in model container [2024-10-31 22:09:07,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:07" (1/1) ... [2024-10-31 22:09:07,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:08,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:08,120 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:08,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:08,161 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:08,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08 WrapperNode [2024-10-31 22:09:08,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:08,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:08,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:08,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:08,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,195 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-10-31 22:09:08,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:08,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:08,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:08,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:08,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,223 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:09:08,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:08,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:08,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:08,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:08,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (1/1) ... [2024-10-31 22:09:08,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:08,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:08,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:08,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:08,407 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:08,409 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:09:08,509 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-31 22:09:08,510 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:09:08,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:09:08,524 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-31 22:09:08,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:08 BoogieIcfgContainer [2024-10-31 22:09:08,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:09:08,526 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:09:08,526 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:09:08,531 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:09:08,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:09:08,533 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:09:07" (1/3) ... [2024-10-31 22:09:08,534 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d9f9286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:09:08, skipping insertion in model container [2024-10-31 22:09:08,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:09:08,534 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:08" (2/3) ... [2024-10-31 22:09:08,535 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d9f9286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:09:08, skipping insertion in model container [2024-10-31 22:09:08,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:09:08,535 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:08" (3/3) ... [2024-10-31 22:09:08,537 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_04.c [2024-10-31 22:09:08,601 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:09:08,602 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:09:08,602 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:09:08,602 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:09:08,602 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:09:08,603 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:09:08,603 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:09:08,603 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:09:08,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 22:09:08,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:09:08,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:09:08,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:09:08,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:09:08,648 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:09:08,650 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:09:08,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 22:09:08,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:09:08,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:09:08,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:09:08,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:09:08,655 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:09:08,663 INFO L745 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 6#L15-2true [2024-10-31 22:09:08,664 INFO L747 eck$LassoCheckResult]: Loop: 6#L15-2true assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 9#L18-2true assume !(main_~j~0#1 < main_~a~0#1); 12#L18-3true main_~i~0#1 := 1 + main_~i~0#1; 6#L15-2true [2024-10-31 22:09:08,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:08,672 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:09:08,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:08,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065004513] [2024-10-31 22:09:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:08,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:08,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:08,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:08,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:08,829 INFO L85 PathProgramCache]: Analyzing trace with hash 40983, now seen corresponding path program 1 times [2024-10-31 22:09:08,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:08,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484387044] [2024-10-31 22:09:08,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:08,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:08,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:08,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:08,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:08,905 INFO L85 PathProgramCache]: Analyzing trace with hash 28699925, now seen corresponding path program 1 times [2024-10-31 22:09:08,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:08,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250937307] [2024-10-31 22:09:08,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:08,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:09,176 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 22:09:09,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250937307] [2024-10-31 22:09:09,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250937307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:09,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:09,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:09,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133214614] [2024-10-31 22:09:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:09,289 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:09:09,290 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:09:09,290 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:09:09,290 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:09:09,291 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:09:09,291 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,291 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:09:09,292 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:09:09,292 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2024-10-31 22:09:09,292 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:09:09,293 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:09:09,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,512 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:09:09,513 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:09:09,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:09:09,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:09:09,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:09:09,558 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:09:09,558 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:09:09,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:09:09,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:09:09,587 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:09:09,587 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:09:09,612 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:09:09,612 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:09:09,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:09:09,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:09:09,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:09:09,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:09:09,653 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:09:09,653 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:09:09,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:09:09,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,675 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:09:09,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:09:09,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:09:09,694 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:09:09,695 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 22:09:09,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:09:09,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,717 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:09:09,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:09:09,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:09:09,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:09:09,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,762 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:09:09,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:09:09,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:09:09,805 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:09:09,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:09:09,809 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:09:09,809 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:09:09,809 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:09:09,809 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:09:09,809 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:09:09,809 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,809 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:09:09,809 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:09:09,810 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2024-10-31 22:09:09,810 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:09:09,810 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:09:09,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:09:09,900 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:09:09,905 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:09:09,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:09:09,912 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 22:09:09,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:09:09,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:09:09,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:09:09,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:09:09,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:09:09,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:09:09,938 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:09:09,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:09:09,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:09,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:09,960 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:09,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:09:09,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:09:09,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:09:09,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:09:09,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:09:09,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:09:09,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:09:09,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:09:09,993 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:09:10,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:10,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:10,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:10,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:10,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:09:10,018 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 22:09:10,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:09:10,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:09:10,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:09:10,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:09:10,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:09:10,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:09:10,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:09:10,035 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:09:10,040 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:09:10,040 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:09:10,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:09:10,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:10,056 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:10,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:09:10,060 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:09:10,060 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:09:10,061 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:09:10,061 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:09:10,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:10,077 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:09:10,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:09:10,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,142 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:09:10,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:10,235 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 22:09:10,280 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 22:09:10,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 22:09:10,406 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 57 states and 97 transitions. Complement of second has 10 states. [2024-10-31 22:09:10,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-31 22:09:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 22:09:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-10-31 22:09:10,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 60 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-31 22:09:10,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:09:10,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 60 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-31 22:09:10,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:09:10,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 60 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-31 22:09:10,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:09:10,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 97 transitions. [2024-10-31 22:09:10,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:09:10,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 38 states and 55 transitions. [2024-10-31 22:09:10,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-10-31 22:09:10,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-10-31 22:09:10,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 55 transitions. [2024-10-31 22:09:10,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:09:10,440 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 55 transitions. [2024-10-31 22:09:10,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 55 transitions. [2024-10-31 22:09:10,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2024-10-31 22:09:10,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 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 22:09:10,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2024-10-31 22:09:10,481 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2024-10-31 22:09:10,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:10,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:10,486 INFO L87 Difference]: Start difference. First operand 25 states and 36 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 22:09:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:10,549 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2024-10-31 22:09:10,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2024-10-31 22:09:10,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:09:10,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 26 transitions. [2024-10-31 22:09:10,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-10-31 22:09:10,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-10-31 22:09:10,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2024-10-31 22:09:10,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:09:10,554 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-10-31 22:09:10,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2024-10-31 22:09:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2024-10-31 22:09:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-10-31 22:09:10,557 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-31 22:09:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:10,559 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-31 22:09:10,559 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:09:10,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-10-31 22:09:10,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 22:09:10,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:09:10,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:09:10,562 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:09:10,562 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:09:10,563 INFO L745 eck$LassoCheckResult]: Stem: 192#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 193#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 189#L15-2 [2024-10-31 22:09:10,563 INFO L747 eck$LassoCheckResult]: Loop: 189#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 186#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 187#L20-2 assume !(main_~k~0#1 >= 0); 190#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 191#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 188#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 189#L15-2 [2024-10-31 22:09:10,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:10,564 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-31 22:09:10,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:10,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189014719] [2024-10-31 22:09:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:10,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:10,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:10,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:10,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:10,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1221756439, now seen corresponding path program 1 times [2024-10-31 22:09:10,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:10,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541125391] [2024-10-31 22:09:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:10,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:10,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:10,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541125391] [2024-10-31 22:09:10,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541125391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:10,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:10,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:09:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957679437] [2024-10-31 22:09:10,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:10,684 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:09:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:10,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:10,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:10,685 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:10,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:10,737 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2024-10-31 22:09:10,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2024-10-31 22:09:10,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-10-31 22:09:10,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 23 transitions. [2024-10-31 22:09:10,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-10-31 22:09:10,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-10-31 22:09:10,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2024-10-31 22:09:10,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:09:10,739 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 23 transitions. [2024-10-31 22:09:10,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2024-10-31 22:09:10,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2024-10-31 22:09:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 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 22:09:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2024-10-31 22:09:10,744 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-10-31 22:09:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:10,746 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-10-31 22:09:10,746 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:09:10,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2024-10-31 22:09:10,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-10-31 22:09:10,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:09:10,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:09:10,748 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:09:10,748 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:10,749 INFO L745 eck$LassoCheckResult]: Stem: 230#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 229#L15-2 [2024-10-31 22:09:10,749 INFO L747 eck$LassoCheckResult]: Loop: 229#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 222#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 223#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 224#L23-2 assume !(main_~l~0#1 < main_~b~0#1); 225#L23-3 main_~k~0#1 := main_~k~0#1 - 1; 232#L20-2 assume !(main_~k~0#1 >= 0); 226#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 227#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 228#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 229#L15-2 [2024-10-31 22:09:10,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-10-31 22:09:10,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:10,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072497694] [2024-10-31 22:09:10,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:10,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:10,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:10,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:10,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:10,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1352067341, now seen corresponding path program 1 times [2024-10-31 22:09:10,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:10,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24232032] [2024-10-31 22:09:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:10,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:10,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:10,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24232032] [2024-10-31 22:09:10,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24232032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:10,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:10,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:10,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406256990] [2024-10-31 22:09:10,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:10,851 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:09:10,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:10,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:10,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:10,852 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 22:09:10,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:10,904 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2024-10-31 22:09:10,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2024-10-31 22:09:10,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 22:09:10,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 18 transitions. [2024-10-31 22:09:10,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-31 22:09:10,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-31 22:09:10,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2024-10-31 22:09:10,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:09:10,905 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-10-31 22:09:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2024-10-31 22:09:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-31 22:09:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 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 22:09:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2024-10-31 22:09:10,907 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-10-31 22:09:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:10,908 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-10-31 22:09:10,909 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:09:10,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2024-10-31 22:09:10,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 22:09:10,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:09:10,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:09:10,910 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:09:10,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:10,910 INFO L745 eck$LassoCheckResult]: Stem: 266#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 267#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 264#L15-2 [2024-10-31 22:09:10,910 INFO L747 eck$LassoCheckResult]: Loop: 264#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 258#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 259#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 260#L23-2 assume !!(main_~l~0#1 < main_~b~0#1);main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1); 256#L25-2 assume !(main_~m~0#1 >= 0); 257#L25-3 main_~l~0#1 := 1 + main_~l~0#1; 265#L23-2 assume !(main_~l~0#1 < main_~b~0#1); 268#L23-3 main_~k~0#1 := main_~k~0#1 - 1; 269#L20-2 assume !(main_~k~0#1 >= 0); 261#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 262#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 263#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 264#L15-2 [2024-10-31 22:09:10,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:10,911 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-10-31 22:09:10,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:10,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873006513] [2024-10-31 22:09:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:10,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:10,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:10,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:10,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1603093127, now seen corresponding path program 1 times [2024-10-31 22:09:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:10,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002489648] [2024-10-31 22:09:10,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:10,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:11,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:11,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002489648] [2024-10-31 22:09:11,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002489648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:11,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:11,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:11,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405417057] [2024-10-31 22:09:11,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:11,020 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:09:11,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:11,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:11,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:11,022 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 22:09:11,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:11,058 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2024-10-31 22:09:11,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2024-10-31 22:09:11,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-31 22:09:11,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 7 transitions. [2024-10-31 22:09:11,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:09:11,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-31 22:09:11,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7 transitions. [2024-10-31 22:09:11,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:09:11,060 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2024-10-31 22:09:11,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 7 transitions. [2024-10-31 22:09:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-10-31 22:09:11,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.0) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2024-10-31 22:09:11,061 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2024-10-31 22:09:11,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:11,062 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2024-10-31 22:09:11,062 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:09:11,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2024-10-31 22:09:11,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-31 22:09:11,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:09:11,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:09:11,064 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:09:11,064 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-31 22:09:11,064 INFO L745 eck$LassoCheckResult]: Stem: 293#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 295#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 290#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 291#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 292#L23-2 assume !!(main_~l~0#1 < main_~b~0#1);main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1); 289#L25-2 [2024-10-31 22:09:11,064 INFO L747 eck$LassoCheckResult]: Loop: 289#L25-2 assume !!(main_~m~0#1 >= 0);main_~m~0#1 := main_~m~0#1; 289#L25-2 [2024-10-31 22:09:11,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:11,065 INFO L85 PathProgramCache]: Analyzing trace with hash 889698581, now seen corresponding path program 1 times [2024-10-31 22:09:11,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:11,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627706279] [2024-10-31 22:09:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:11,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:11,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:11,079 INFO L85 PathProgramCache]: Analyzing trace with hash 78, now seen corresponding path program 1 times [2024-10-31 22:09:11,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:11,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705282209] [2024-10-31 22:09:11,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:11,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:11,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:11,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1810852282, now seen corresponding path program 1 times [2024-10-31 22:09:11,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:11,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301957469] [2024-10-31 22:09:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:11,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:09:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:09:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:09:11,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:09:11 BoogieIcfgContainer [2024-10-31 22:09:11,268 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:09:11,269 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:09:11,269 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:09:11,269 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:09:11,270 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:08" (3/4) ... [2024-10-31 22:09:11,272 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:09:11,310 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:09:11,310 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:09:11,311 INFO L158 Benchmark]: Toolchain (without parser) took 3630.42ms. Allocated memory is still 188.7MB. Free memory was 145.9MB in the beginning and 77.4MB in the end (delta: 68.5MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-10-31 22:09:11,311 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 125.8MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:09:11,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.76ms. Allocated memory is still 188.7MB. Free memory was 145.3MB in the beginning and 134.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:09:11,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.17ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 132.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:09:11,313 INFO L158 Benchmark]: Boogie Preprocessor took 40.80ms. Allocated memory is still 188.7MB. Free memory was 132.7MB in the beginning and 131.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:09:11,313 INFO L158 Benchmark]: RCFGBuilder took 286.47ms. Allocated memory is still 188.7MB. Free memory was 131.3MB in the beginning and 121.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:09:11,313 INFO L158 Benchmark]: BuchiAutomizer took 2742.70ms. Allocated memory is still 188.7MB. Free memory was 121.5MB in the beginning and 79.5MB in the end (delta: 42.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2024-10-31 22:09:11,314 INFO L158 Benchmark]: Witness Printer took 41.20ms. Allocated memory is still 188.7MB. Free memory was 79.5MB in the beginning and 77.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:09:11,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 125.8MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.76ms. Allocated memory is still 188.7MB. Free memory was 145.3MB in the beginning and 134.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.17ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 132.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.80ms. Allocated memory is still 188.7MB. Free memory was 132.7MB in the beginning and 131.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.47ms. Allocated memory is still 188.7MB. Free memory was 131.3MB in the beginning and 121.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2742.70ms. Allocated memory is still 188.7MB. Free memory was 121.5MB in the beginning and 79.5MB in the end (delta: 42.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 41.20ms. Allocated memory is still 188.7MB. Free memory was 79.5MB in the beginning and 77.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((long) -1 * i) and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 24 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 40 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 25]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:09:11,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:09:11,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663988dd-1397-4e2c-b029-a0b1a0439103/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)