./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:19:44,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:19:44,679 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:19:44,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:19:44,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:19:44,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:19:44,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:19:44,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:19:44,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:19:44,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:19:44,712 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:19:44,712 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:19:44,713 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:19:44,713 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:19:44,714 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:19:44,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:19:44,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:19:44,714 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:19:44,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:19:44,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:19:44,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:19:44,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:19:44,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:19:44,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:19:44,717 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:19:44,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:19:44,717 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E 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(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2024-11-14 05:19:44,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:19:45,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:19:45,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:19:45,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:19:45,008 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:19:45,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-14 05:19:46,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:19:47,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:19:47,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2024-11-14 05:19:47,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/data/fe232514a/5b48ad6a852449abb22bf104899e4f8e/FLAGc89670fcf [2024-11-14 05:19:47,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/data/fe232514a/5b48ad6a852449abb22bf104899e4f8e [2024-11-14 05:19:47,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:19:47,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:19:47,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:19:47,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:19:47,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:19:47,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37cddaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47, skipping insertion in model container [2024-11-14 05:19:47,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:19:47,517 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2024-11-14 05:19:47,523 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2024-11-14 05:19:47,525 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2024-11-14 05:19:47,531 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2024-11-14 05:19:47,533 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2024-11-14 05:19:47,537 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2024-11-14 05:19:47,540 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2024-11-14 05:19:47,542 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2024-11-14 05:19:47,547 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2024-11-14 05:19:47,551 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2024-11-14 05:19:47,554 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2024-11-14 05:19:47,558 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2024-11-14 05:19:47,560 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2024-11-14 05:19:47,565 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2024-11-14 05:19:47,567 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2024-11-14 05:19:47,569 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2024-11-14 05:19:47,573 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2024-11-14 05:19:47,574 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2024-11-14 05:19:47,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:19:47,595 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:19:47,610 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2024-11-14 05:19:47,617 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2024-11-14 05:19:47,621 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2024-11-14 05:19:47,623 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2024-11-14 05:19:47,627 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2024-11-14 05:19:47,629 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2024-11-14 05:19:47,634 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2024-11-14 05:19:47,635 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2024-11-14 05:19:47,636 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2024-11-14 05:19:47,638 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2024-11-14 05:19:47,639 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2024-11-14 05:19:47,644 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2024-11-14 05:19:47,645 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2024-11-14 05:19:47,647 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2024-11-14 05:19:47,650 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2024-11-14 05:19:47,655 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2024-11-14 05:19:47,656 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2024-11-14 05:19:47,657 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2024-11-14 05:19:47,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:19:47,675 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:19:47,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47 WrapperNode [2024-11-14 05:19:47,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:19:47,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:19:47,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:19:47,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:19:47,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,727 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 278 [2024-11-14 05:19:47,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:19:47,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:19:47,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:19:47,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:19:47,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:19:47,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:19:47,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:19:47,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:19:47,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (1/1) ... [2024-11-14 05:19:47,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:19:47,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:47,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:19:47,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:19:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:19:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:19:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:19:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:19:47,921 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:19:47,924 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:19:48,259 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-14 05:19:48,259 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:19:48,293 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:19:48,295 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:19:48,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:19:48 BoogieIcfgContainer [2024-11-14 05:19:48,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:19:48,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:19:48,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:19:48,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:19:48,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:19:47" (1/3) ... [2024-11-14 05:19:48,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48da6c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:19:48, skipping insertion in model container [2024-11-14 05:19:48,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:19:47" (2/3) ... [2024-11-14 05:19:48,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48da6c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:19:48, skipping insertion in model container [2024-11-14 05:19:48,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:19:48" (3/3) ... [2024-11-14 05:19:48,313 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2024-11-14 05:19:48,331 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:19:48,333 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG apache-get-tag.i.v+lhb-reducer.c that has 1 procedures, 73 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2024-11-14 05:19:48,414 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:19:48,434 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@604960c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:19:48,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-14 05:19:48,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 72 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:48,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:19:48,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:48,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:48,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:48,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:48,454 INFO L85 PathProgramCache]: Analyzing trace with hash 786284628, now seen corresponding path program 1 times [2024-11-14 05:19:48,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:48,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290160870] [2024-11-14 05:19:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:48,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:48,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:48,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290160870] [2024-11-14 05:19:48,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290160870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:48,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:48,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:19:48,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539712306] [2024-11-14 05:19:48,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:48,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:48,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:48,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:48,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:48,875 INFO L87 Difference]: Start difference. First operand has 73 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 72 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-14 05:19:49,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:49,020 INFO L93 Difference]: Finished difference Result 78 states and 106 transitions. [2024-11-14 05:19:49,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:49,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) Word has length 7 [2024-11-14 05:19:49,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:49,031 INFO L225 Difference]: With dead ends: 78 [2024-11-14 05:19:49,031 INFO L226 Difference]: Without dead ends: 70 [2024-11-14 05:19:49,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:49,039 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 9 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:49,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 185 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:49,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-14 05:19:49,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2024-11-14 05:19:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 51 states have (on average 1.411764705882353) internal successors, (72), 67 states have internal predecessors, (72), 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) [2024-11-14 05:19:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2024-11-14 05:19:49,086 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 7 [2024-11-14 05:19:49,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:49,086 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2024-11-14 05:19:49,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-14 05:19:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2024-11-14 05:19:49,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:19:49,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:49,087 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:49,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:19:49,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:49,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:49,089 INFO L85 PathProgramCache]: Analyzing trace with hash 782713684, now seen corresponding path program 1 times [2024-11-14 05:19:49,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:49,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076447111] [2024-11-14 05:19:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:49,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:49,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:49,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076447111] [2024-11-14 05:19:49,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076447111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:49,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:49,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:19:49,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653084218] [2024-11-14 05:19:49,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:49,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:49,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:49,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:49,223 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-14 05:19:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:49,335 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2024-11-14 05:19:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:49,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) Word has length 7 [2024-11-14 05:19:49,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:49,336 INFO L225 Difference]: With dead ends: 70 [2024-11-14 05:19:49,337 INFO L226 Difference]: Without dead ends: 68 [2024-11-14 05:19:49,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:49,338 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 5 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:49,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 160 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-14 05:19:49,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2024-11-14 05:19:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.4) internal successors, (70), 65 states have internal predecessors, (70), 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) [2024-11-14 05:19:49,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2024-11-14 05:19:49,349 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 7 [2024-11-14 05:19:49,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:49,350 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2024-11-14 05:19:49,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-14 05:19:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2024-11-14 05:19:49,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:19:49,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:49,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:49,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:19:49,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:49,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:49,353 INFO L85 PathProgramCache]: Analyzing trace with hash -542291522, now seen corresponding path program 1 times [2024-11-14 05:19:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:49,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041875401] [2024-11-14 05:19:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:49,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:49,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:49,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041875401] [2024-11-14 05:19:49,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041875401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:49,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:49,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:19:49,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863218411] [2024-11-14 05:19:49,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:49,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:19:49,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:49,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:19:49,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:49,540 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:49,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:49,708 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2024-11-14 05:19:49,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:49,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 05:19:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:49,709 INFO L225 Difference]: With dead ends: 68 [2024-11-14 05:19:49,709 INFO L226 Difference]: Without dead ends: 66 [2024-11-14 05:19:49,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:49,711 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 46 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:49,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 124 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:49,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-14 05:19:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2024-11-14 05:19:49,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 63 states have internal predecessors, (68), 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) [2024-11-14 05:19:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2024-11-14 05:19:49,721 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 10 [2024-11-14 05:19:49,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:49,722 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2024-11-14 05:19:49,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:49,722 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2024-11-14 05:19:49,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:19:49,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:49,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:49,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:19:49,723 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:49,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:49,724 INFO L85 PathProgramCache]: Analyzing trace with hash 449783979, now seen corresponding path program 1 times [2024-11-14 05:19:49,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:49,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037973519] [2024-11-14 05:19:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:49,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:49,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:49,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037973519] [2024-11-14 05:19:49,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037973519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:49,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:49,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:19:49,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837782833] [2024-11-14 05:19:49,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:49,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:19:49,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:49,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:19:49,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:49,880 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:50,010 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2024-11-14 05:19:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 05:19:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:50,011 INFO L225 Difference]: With dead ends: 66 [2024-11-14 05:19:50,012 INFO L226 Difference]: Without dead ends: 64 [2024-11-14 05:19:50,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:50,012 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:50,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 118 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-14 05:19:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-11-14 05:19:50,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 48 states have (on average 1.375) internal successors, (66), 61 states have internal predecessors, (66), 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) [2024-11-14 05:19:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2024-11-14 05:19:50,017 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 10 [2024-11-14 05:19:50,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:50,017 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2024-11-14 05:19:50,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,018 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2024-11-14 05:19:50,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:19:50,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:50,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:50,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:19:50,018 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:50,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:50,019 INFO L85 PathProgramCache]: Analyzing trace with hash 368836189, now seen corresponding path program 1 times [2024-11-14 05:19:50,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:50,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536986198] [2024-11-14 05:19:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:50,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:50,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:50,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536986198] [2024-11-14 05:19:50,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536986198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:50,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:50,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:19:50,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071857533] [2024-11-14 05:19:50,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:50,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:50,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:50,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:50,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:50,110 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:50,173 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2024-11-14 05:19:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:50,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:19:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:50,174 INFO L225 Difference]: With dead ends: 64 [2024-11-14 05:19:50,174 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 05:19:50,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:50,175 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 9 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:50,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 136 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 05:19:50,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2024-11-14 05:19:50,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 57 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2024-11-14 05:19:50,182 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 11 [2024-11-14 05:19:50,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:50,182 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2024-11-14 05:19:50,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,182 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-11-14 05:19:50,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:19:50,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:50,182 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:50,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:19:50,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:50,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:50,187 INFO L85 PathProgramCache]: Analyzing trace with hash 369324761, now seen corresponding path program 1 times [2024-11-14 05:19:50,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:50,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570113129] [2024-11-14 05:19:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:50,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:50,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:50,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:50,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570113129] [2024-11-14 05:19:50,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570113129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:50,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:50,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:19:50,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870296211] [2024-11-14 05:19:50,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:50,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:19:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:19:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:50,303 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:50,410 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2024-11-14 05:19:50,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:50,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:19:50,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:50,412 INFO L225 Difference]: With dead ends: 60 [2024-11-14 05:19:50,412 INFO L226 Difference]: Without dead ends: 58 [2024-11-14 05:19:50,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:50,413 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 40 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:50,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 104 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-14 05:19:50,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-11-14 05:19:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 55 states have internal predecessors, (60), 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) [2024-11-14 05:19:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2024-11-14 05:19:50,419 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 11 [2024-11-14 05:19:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:50,419 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2024-11-14 05:19:50,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,419 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2024-11-14 05:19:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:19:50,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:50,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:50,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:19:50,423 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:50,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:50,423 INFO L85 PathProgramCache]: Analyzing trace with hash 369340649, now seen corresponding path program 1 times [2024-11-14 05:19:50,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:50,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285121564] [2024-11-14 05:19:50,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:50,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:50,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:50,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285121564] [2024-11-14 05:19:50,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285121564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:50,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:50,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:19:50,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349937470] [2024-11-14 05:19:50,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:50,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:19:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:19:50,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:50,526 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:50,630 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2024-11-14 05:19:50,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:50,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:19:50,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:50,632 INFO L225 Difference]: With dead ends: 58 [2024-11-14 05:19:50,632 INFO L226 Difference]: Without dead ends: 56 [2024-11-14 05:19:50,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:50,633 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 38 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:50,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 98 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:50,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-14 05:19:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-14 05:19:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 53 states have internal predecessors, (58), 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) [2024-11-14 05:19:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2024-11-14 05:19:50,639 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 11 [2024-11-14 05:19:50,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:50,639 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2024-11-14 05:19:50,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2024-11-14 05:19:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:19:50,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:50,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:50,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:19:50,640 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:50,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:50,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1058405533, now seen corresponding path program 1 times [2024-11-14 05:19:50,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:50,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377439625] [2024-11-14 05:19:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:50,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:50,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:50,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377439625] [2024-11-14 05:19:50,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377439625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:50,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:50,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:19:50,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67152655] [2024-11-14 05:19:50,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:50,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:50,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:50,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:50,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:50,741 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:50,799 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2024-11-14 05:19:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:50,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:19:50,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:50,801 INFO L225 Difference]: With dead ends: 56 [2024-11-14 05:19:50,808 INFO L226 Difference]: Without dead ends: 52 [2024-11-14 05:19:50,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:50,812 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 9 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:50,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 116 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:50,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-14 05:19:50,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-11-14 05:19:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.35) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2024-11-14 05:19:50,815 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 11 [2024-11-14 05:19:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:50,817 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-11-14 05:19:50,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:50,820 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2024-11-14 05:19:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:19:50,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:50,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:50,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:19:50,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:50,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1435830091, now seen corresponding path program 1 times [2024-11-14 05:19:50,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:50,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517819365] [2024-11-14 05:19:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:50,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:51,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:51,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517819365] [2024-11-14 05:19:51,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517819365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:51,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:51,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:19:51,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723325215] [2024-11-14 05:19:51,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:51,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:19:51,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:51,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:19:51,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:51,020 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:51,157 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2024-11-14 05:19:51,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:19:51,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-14 05:19:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:51,159 INFO L225 Difference]: With dead ends: 84 [2024-11-14 05:19:51,159 INFO L226 Difference]: Without dead ends: 82 [2024-11-14 05:19:51,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:19:51,160 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 30 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:51,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 137 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-14 05:19:51,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 55. [2024-11-14 05:19:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 54 states have internal predecessors, (60), 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) [2024-11-14 05:19:51,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2024-11-14 05:19:51,169 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 12 [2024-11-14 05:19:51,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:51,170 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2024-11-14 05:19:51,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2024-11-14 05:19:51,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:19:51,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:51,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:51,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:19:51,171 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:51,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:51,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1435337547, now seen corresponding path program 1 times [2024-11-14 05:19:51,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:51,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343264156] [2024-11-14 05:19:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:51,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:51,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:51,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343264156] [2024-11-14 05:19:51,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343264156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:51,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:51,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:19:51,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816856181] [2024-11-14 05:19:51,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:51,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:19:51,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:51,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:19:51,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:51,352 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:51,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:51,462 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2024-11-14 05:19:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:19:51,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-14 05:19:51,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:51,463 INFO L225 Difference]: With dead ends: 82 [2024-11-14 05:19:51,464 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 05:19:51,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:19:51,465 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:51,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 112 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:51,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 05:19:51,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 57. [2024-11-14 05:19:51,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 56 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:51,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2024-11-14 05:19:51,475 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 12 [2024-11-14 05:19:51,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:51,475 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2024-11-14 05:19:51,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:51,475 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2024-11-14 05:19:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:19:51,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:51,476 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:51,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:19:51,476 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:51,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:51,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1532112384, now seen corresponding path program 1 times [2024-11-14 05:19:51,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:51,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672993756] [2024-11-14 05:19:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:51,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:51,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:51,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672993756] [2024-11-14 05:19:51,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672993756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:51,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:51,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:19:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079658407] [2024-11-14 05:19:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:51,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:19:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:51,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:19:51,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:51,556 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. 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) [2024-11-14 05:19:51,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:51,666 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2024-11-14 05:19:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:51,667 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 12 [2024-11-14 05:19:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:51,667 INFO L225 Difference]: With dead ends: 58 [2024-11-14 05:19:51,667 INFO L226 Difference]: Without dead ends: 56 [2024-11-14 05:19:51,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:51,668 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 34 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:51,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 84 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:51,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-14 05:19:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2024-11-14 05:19:51,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 54 states have internal predecessors, (60), 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) [2024-11-14 05:19:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2024-11-14 05:19:51,674 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 12 [2024-11-14 05:19:51,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:51,674 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2024-11-14 05:19:51,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-14 05:19:51,675 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2024-11-14 05:19:51,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:19:51,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:51,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:51,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:19:51,675 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:51,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:51,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1530388480, now seen corresponding path program 1 times [2024-11-14 05:19:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:51,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681415459] [2024-11-14 05:19:51,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:51,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:51,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:51,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681415459] [2024-11-14 05:19:51,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681415459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:51,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:51,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:19:51,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337591058] [2024-11-14 05:19:51,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:51,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:19:51,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:51,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:19:51,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:51,755 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. 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) [2024-11-14 05:19:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:51,842 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2024-11-14 05:19:51,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:51,842 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 12 [2024-11-14 05:19:51,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:51,843 INFO L225 Difference]: With dead ends: 56 [2024-11-14 05:19:51,843 INFO L226 Difference]: Without dead ends: 54 [2024-11-14 05:19:51,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:51,845 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 32 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:51,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 78 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-14 05:19:51,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2024-11-14 05:19:51,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.288888888888889) internal successors, (58), 52 states have internal predecessors, (58), 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) [2024-11-14 05:19:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2024-11-14 05:19:51,849 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 12 [2024-11-14 05:19:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:51,849 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2024-11-14 05:19:51,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-14 05:19:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2024-11-14 05:19:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:19:51,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:51,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:51,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 05:19:51,850 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:51,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:51,851 INFO L85 PathProgramCache]: Analyzing trace with hash -250839552, now seen corresponding path program 1 times [2024-11-14 05:19:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038273930] [2024-11-14 05:19:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:51,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:52,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:52,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038273930] [2024-11-14 05:19:52,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038273930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:52,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:52,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:19:52,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610264644] [2024-11-14 05:19:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:52,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:19:52,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:52,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:19:52,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:52,006 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-14 05:19:52,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:52,111 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2024-11-14 05:19:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:19:52,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) Word has length 13 [2024-11-14 05:19:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:52,112 INFO L225 Difference]: With dead ends: 72 [2024-11-14 05:19:52,112 INFO L226 Difference]: Without dead ends: 70 [2024-11-14 05:19:52,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:19:52,113 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 24 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:52,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 99 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-14 05:19:52,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 59. [2024-11-14 05:19:52,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 58 states have internal predecessors, (66), 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) [2024-11-14 05:19:52,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2024-11-14 05:19:52,119 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 13 [2024-11-14 05:19:52,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:52,119 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2024-11-14 05:19:52,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-14 05:19:52,119 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2024-11-14 05:19:52,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:19:52,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:52,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:52,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 05:19:52,120 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:52,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash -249292407, now seen corresponding path program 1 times [2024-11-14 05:19:52,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:52,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505087218] [2024-11-14 05:19:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:52,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:52,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505087218] [2024-11-14 05:19:52,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505087218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:52,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:52,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:19:52,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501561936] [2024-11-14 05:19:52,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:52,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:19:52,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:52,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:19:52,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:52,218 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-14 05:19:52,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:52,302 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2024-11-14 05:19:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:52,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 13 [2024-11-14 05:19:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:52,303 INFO L225 Difference]: With dead ends: 59 [2024-11-14 05:19:52,303 INFO L226 Difference]: Without dead ends: 57 [2024-11-14 05:19:52,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:52,304 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:52,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 72 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:52,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-14 05:19:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-14 05:19:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.28) internal successors, (64), 56 states have internal predecessors, (64), 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) [2024-11-14 05:19:52,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2024-11-14 05:19:52,307 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 13 [2024-11-14 05:19:52,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:52,307 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2024-11-14 05:19:52,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-14 05:19:52,307 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2024-11-14 05:19:52,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:19:52,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:52,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:52,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 05:19:52,308 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:52,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:52,309 INFO L85 PathProgramCache]: Analyzing trace with hash -197398472, now seen corresponding path program 1 times [2024-11-14 05:19:52,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:52,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725345754] [2024-11-14 05:19:52,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:52,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:52,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:52,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725345754] [2024-11-14 05:19:52,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725345754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:52,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:52,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:19:52,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117361145] [2024-11-14 05:19:52,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:52,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:19:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:52,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:19:52,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:52,486 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-14 05:19:52,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:52,598 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2024-11-14 05:19:52,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:19:52,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) Word has length 13 [2024-11-14 05:19:52,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:52,600 INFO L225 Difference]: With dead ends: 69 [2024-11-14 05:19:52,600 INFO L226 Difference]: Without dead ends: 65 [2024-11-14 05:19:52,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:52,600 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:52,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 111 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:52,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-14 05:19:52,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 58. [2024-11-14 05:19:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 57 states have internal predecessors, (65), 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) [2024-11-14 05:19:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2024-11-14 05:19:52,606 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 13 [2024-11-14 05:19:52,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:52,606 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2024-11-14 05:19:52,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-14 05:19:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2024-11-14 05:19:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:19:52,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:52,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:52,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 05:19:52,608 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:52,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash 861874106, now seen corresponding path program 1 times [2024-11-14 05:19:52,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:52,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304036781] [2024-11-14 05:19:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:52,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:52,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304036781] [2024-11-14 05:19:52,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304036781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:52,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:52,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:19:52,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694859698] [2024-11-14 05:19:52,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:52,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:19:52,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:52,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:19:52,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:52,755 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-14 05:19:52,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:52,875 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2024-11-14 05:19:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:19:52,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) Word has length 14 [2024-11-14 05:19:52,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:52,876 INFO L225 Difference]: With dead ends: 65 [2024-11-14 05:19:52,876 INFO L226 Difference]: Without dead ends: 63 [2024-11-14 05:19:52,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:19:52,877 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 15 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:52,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 115 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-14 05:19:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2024-11-14 05:19:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 60 states have internal predecessors, (68), 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) [2024-11-14 05:19:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2024-11-14 05:19:52,880 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 14 [2024-11-14 05:19:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:52,880 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2024-11-14 05:19:52,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-14 05:19:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2024-11-14 05:19:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:19:52,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:52,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:52,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 05:19:52,881 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:52,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:52,882 INFO L85 PathProgramCache]: Analyzing trace with hash -538513565, now seen corresponding path program 1 times [2024-11-14 05:19:52,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:52,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905596761] [2024-11-14 05:19:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:52,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:52,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:52,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:52,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905596761] [2024-11-14 05:19:52,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905596761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:52,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:52,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:19:52,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328302993] [2024-11-14 05:19:52,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:52,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:52,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:52,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:52,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:52,946 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-14 05:19:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:52,981 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2024-11-14 05:19:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:52,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) Word has length 15 [2024-11-14 05:19:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:52,982 INFO L225 Difference]: With dead ends: 61 [2024-11-14 05:19:52,982 INFO L226 Difference]: Without dead ends: 59 [2024-11-14 05:19:52,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:19:52,982 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 28 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:52,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 68 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:52,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-14 05:19:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-14 05:19:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 58 states have internal predecessors, (66), 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) [2024-11-14 05:19:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2024-11-14 05:19:52,985 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 15 [2024-11-14 05:19:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:52,985 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2024-11-14 05:19:52,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-14 05:19:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2024-11-14 05:19:52,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 05:19:52,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:52,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:52,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 05:19:52,987 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:52,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash 485952782, now seen corresponding path program 1 times [2024-11-14 05:19:52,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:52,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998898669] [2024-11-14 05:19:52,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:52,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:53,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:53,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998898669] [2024-11-14 05:19:53,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998898669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:53,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:53,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:19:53,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882124097] [2024-11-14 05:19:53,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:53,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:53,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:53,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:53,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:53,047 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2024-11-14 05:19:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:53,090 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2024-11-14 05:19:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:53,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) Word has length 16 [2024-11-14 05:19:53,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:53,091 INFO L225 Difference]: With dead ends: 59 [2024-11-14 05:19:53,091 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 05:19:53,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:53,092 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:53,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 86 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:53,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 05:19:53,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-14 05:19:53,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.24) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:53,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2024-11-14 05:19:53,094 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 16 [2024-11-14 05:19:53,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:53,095 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2024-11-14 05:19:53,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2024-11-14 05:19:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2024-11-14 05:19:53,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 05:19:53,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:53,096 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:53,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 05:19:53,096 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:53,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:53,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1674321770, now seen corresponding path program 1 times [2024-11-14 05:19:53,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:53,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233640465] [2024-11-14 05:19:53,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:53,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:53,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:53,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233640465] [2024-11-14 05:19:53,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233640465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:53,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110398191] [2024-11-14 05:19:53,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:53,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:53,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:53,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:53,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:19:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:53,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:19:53,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:53,621 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:53,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:19:53,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110398191] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:53,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1769572037] [2024-11-14 05:19:53,770 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:19:53,770 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:53,772 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:53,777 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:53,778 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:54,543 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:55,969 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2540#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (= ~__tmp_259_0~0 0) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (= ~__return_305~0 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) (= ~__return_main~0 0) (= ~__tmp_383_0~0 0) (<= (+ |ULTIMATE.start_main_~main__tagbuf_len~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|))' at error location [2024-11-14 05:19:55,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:55,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:55,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2024-11-14 05:19:55,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702370514] [2024-11-14 05:19:55,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:55,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 05:19:55,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:55,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 05:19:55,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:19:55,973 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) [2024-11-14 05:19:56,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:56,220 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2024-11-14 05:19:56,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:19:56,221 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) Word has length 17 [2024-11-14 05:19:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:56,221 INFO L225 Difference]: With dead ends: 82 [2024-11-14 05:19:56,221 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 05:19:56,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=224, Invalid=898, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:19:56,222 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 154 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:56,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 79 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:19:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 05:19:56,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 51. [2024-11-14 05:19:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 50 states have internal predecessors, (58), 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) [2024-11-14 05:19:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2024-11-14 05:19:56,226 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 17 [2024-11-14 05:19:56,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:56,226 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2024-11-14 05:19:56,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) [2024-11-14 05:19:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2024-11-14 05:19:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 05:19:56,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:56,229 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:56,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:19:56,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:56,434 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:56,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:56,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1674814314, now seen corresponding path program 1 times [2024-11-14 05:19:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:56,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868132054] [2024-11-14 05:19:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:56,559 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:56,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:56,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868132054] [2024-11-14 05:19:56,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868132054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:56,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693465963] [2024-11-14 05:19:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:56,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:56,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:56,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:56,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:19:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:56,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:19:56,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:56,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:56,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:19:56,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693465963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:56,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1490555013] [2024-11-14 05:19:56,978 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2024-11-14 05:19:56,979 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:56,979 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:56,979 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:56,980 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:57,320 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:58,379 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2807#(and (<= 1 |#StackHeapBarrier|) (= ~__tmp_259_0~0 0) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (= ~__return_305~0 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (= ~__return_main~0 0) (= ~__tmp_383_0~0 0) (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0) (<= (+ |ULTIMATE.start_main_~main__tagbuf_len~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|))' at error location [2024-11-14 05:19:58,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:58,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:58,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2024-11-14 05:19:58,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538217258] [2024-11-14 05:19:58,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:58,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 05:19:58,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:58,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 05:19:58,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:19:58,382 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) [2024-11-14 05:19:58,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:58,640 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2024-11-14 05:19:58,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:19:58,641 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) Word has length 17 [2024-11-14 05:19:58,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:58,641 INFO L225 Difference]: With dead ends: 78 [2024-11-14 05:19:58,642 INFO L226 Difference]: Without dead ends: 76 [2024-11-14 05:19:58,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=218, Invalid=774, Unknown=0, NotChecked=0, Total=992 [2024-11-14 05:19:58,643 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 141 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:58,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 88 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:19:58,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-14 05:19:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 44. [2024-11-14 05:19:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 43 states have internal predecessors, (50), 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) [2024-11-14 05:19:58,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2024-11-14 05:19:58,646 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 17 [2024-11-14 05:19:58,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:58,646 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2024-11-14 05:19:58,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) [2024-11-14 05:19:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2024-11-14 05:19:58,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 05:19:58,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:58,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:58,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:19:58,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:58,848 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:58,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:58,848 INFO L85 PathProgramCache]: Analyzing trace with hash -2100213862, now seen corresponding path program 1 times [2024-11-14 05:19:58,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:58,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356120078] [2024-11-14 05:19:58,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:58,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:58,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:58,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:58,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356120078] [2024-11-14 05:19:58,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356120078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:58,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:58,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:19:58,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382081019] [2024-11-14 05:19:58,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:58,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:19:58,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:58,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:19:58,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:19:58,984 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2024-11-14 05:19:59,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:59,056 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-11-14 05:19:59,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:59,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) Word has length 17 [2024-11-14 05:19:59,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:59,058 INFO L225 Difference]: With dead ends: 44 [2024-11-14 05:19:59,058 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:19:59,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:19:59,059 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 47 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:59,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 32 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:19:59,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-11-14 05:19:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 38 states have internal predecessors, (45), 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) [2024-11-14 05:19:59,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2024-11-14 05:19:59,062 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 17 [2024-11-14 05:19:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:59,062 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2024-11-14 05:19:59,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2024-11-14 05:19:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2024-11-14 05:19:59,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 05:19:59,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:59,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:59,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 05:19:59,063 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:59,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:59,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1328628103, now seen corresponding path program 1 times [2024-11-14 05:19:59,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:59,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009401358] [2024-11-14 05:19:59,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:59,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:59,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:59,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009401358] [2024-11-14 05:19:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009401358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:59,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:59,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 05:19:59,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364179520] [2024-11-14 05:19:59,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:59,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:19:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:19:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:19:59,186 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2024-11-14 05:19:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:59,247 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2024-11-14 05:19:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:59,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) Word has length 18 [2024-11-14 05:19:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:59,250 INFO L225 Difference]: With dead ends: 39 [2024-11-14 05:19:59,250 INFO L226 Difference]: Without dead ends: 37 [2024-11-14 05:19:59,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:19:59,252 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 57 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:59,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 26 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-14 05:19:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2024-11-14 05:19:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 33 states have internal predecessors, (39), 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) [2024-11-14 05:19:59,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2024-11-14 05:19:59,257 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2024-11-14 05:19:59,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:59,257 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2024-11-14 05:19:59,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2024-11-14 05:19:59,258 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2024-11-14 05:19:59,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 05:19:59,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:59,258 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:59,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 05:19:59,258 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2024-11-14 05:19:59,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:59,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1382069183, now seen corresponding path program 1 times [2024-11-14 05:19:59,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:59,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469405164] [2024-11-14 05:19:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:59,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:59,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:59,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469405164] [2024-11-14 05:19:59,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469405164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:59,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:59,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 05:19:59,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329569815] [2024-11-14 05:19:59,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:59,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:19:59,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:59,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:19:59,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:19:59,397 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2024-11-14 05:19:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:59,453 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2024-11-14 05:19:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:19:59,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) Word has length 18 [2024-11-14 05:19:59,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:59,454 INFO L225 Difference]: With dead ends: 34 [2024-11-14 05:19:59,454 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:19:59,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:19:59,455 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 57 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:59,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 18 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:59,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:19:59,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:19:59,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-14 05:19:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:19:59,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-14 05:19:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:59,456 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:19:59,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2024-11-14 05:19:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:19:59,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:19:59,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (16 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (15 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (14 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (13 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (12 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (11 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (10 of 18 remaining) [2024-11-14 05:19:59,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (9 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (8 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (7 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (6 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (5 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (4 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (3 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (2 of 18 remaining) [2024-11-14 05:19:59,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (1 of 18 remaining) [2024-11-14 05:19:59,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (0 of 18 remaining) [2024-11-14 05:19:59,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 05:19:59,465 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:59,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:19:59,473 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:19:59,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:19:59 BoogieIcfgContainer [2024-11-14 05:19:59,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:19:59,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:19:59,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:19:59,481 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:19:59,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:19:48" (3/4) ... [2024-11-14 05:19:59,484 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:19:59,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-14 05:19:59,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 05:19:59,495 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:19:59,495 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:19:59,607 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:19:59,608 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:19:59,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:19:59,609 INFO L158 Benchmark]: Toolchain (without parser) took 12324.49ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 93.7MB in the beginning and 117.6MB in the end (delta: -23.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-14 05:19:59,610 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:19:59,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.02ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 79.8MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:19:59,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.81ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:19:59,613 INFO L158 Benchmark]: Boogie Preprocessor took 39.17ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:19:59,613 INFO L158 Benchmark]: RCFGBuilder took 528.83ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 58.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:19:59,613 INFO L158 Benchmark]: TraceAbstraction took 11180.36ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 58.0MB in the beginning and 124.8MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:19:59,614 INFO L158 Benchmark]: Witness Printer took 127.46ms. Allocated memory is still 176.2MB. Free memory was 124.8MB in the beginning and 117.6MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:19:59,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.02ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 79.8MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.81ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.17ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 528.83ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 58.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11180.36ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 58.0MB in the beginning and 124.8MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 127.46ms. Allocated memory is still 176.2MB. Free memory was 124.8MB in the beginning and 117.6MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 52]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 72]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 84]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 114]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 126]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 142]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 154]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 176]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 188]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 224]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 236]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 278]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 297]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 309]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 333]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 345]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 366]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 378]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 73 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 908 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 908 mSDsluCounter, 2246 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1526 mSDsCounter, 143 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1836 IncrementalHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 143 mSolverCounterUnsat, 720 mSDtfsCounter, 1836 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 97 SyntacticMatches, 8 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 155 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 1430 SizeOfPredicates, 6 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 8/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 05:19:59,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cbf054-c7ae-420d-bff4-3fef21ea3b95/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE