./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91 --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 c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:58:53,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:53,802 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:58:53,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:53,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:53,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:53,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:53,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:53,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:53,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:53,859 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:53,861 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:53,861 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:53,863 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:58:53,864 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:53,864 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:53,865 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:58:53,865 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:58:53,866 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:53,866 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:58:53,867 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:58:53,867 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:58:53,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:53,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:53,870 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:58:53,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:58:53,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:58:53,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:53,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:53,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:53,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:53,874 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:58:53,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:53,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:53,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:53,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:58:53,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:53,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:53,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:53,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:53,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:53,877 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:58:53,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:58:53,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:53,879 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:53,879 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:53,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:53,880 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 [2023-11-24 23:58:54,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:54,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:54,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:54,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:54,254 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:54,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-24 23:58:57,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:57,981 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:57,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-24 23:58:58,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/data/65178710e/e9cb5c6b343d411fb51d702a7aeb5b3a/FLAG2ee443700 [2023-11-24 23:58:58,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/data/65178710e/e9cb5c6b343d411fb51d702a7aeb5b3a [2023-11-24 23:58:58,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:58,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:58,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:58,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:58,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:58,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f43f019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58, skipping insertion in model container [2023-11-24 23:58:58,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,248 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:58,873 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2023-11-24 23:58:58,979 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2023-11-24 23:58:59,017 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2023-11-24 23:58:59,034 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2023-11-24 23:58:59,066 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2023-11-24 23:58:59,134 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2023-11-24 23:58:59,164 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2023-11-24 23:58:59,180 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2023-11-24 23:58:59,195 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2023-11-24 23:58:59,213 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2023-11-24 23:58:59,227 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2023-11-24 23:58:59,243 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2023-11-24 23:58:59,263 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2023-11-24 23:58:59,281 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2023-11-24 23:58:59,297 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2023-11-24 23:58:59,312 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2023-11-24 23:58:59,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:59,389 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:59,620 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2023-11-24 23:58:59,669 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2023-11-24 23:58:59,692 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2023-11-24 23:58:59,705 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2023-11-24 23:58:59,718 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2023-11-24 23:58:59,765 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2023-11-24 23:58:59,788 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2023-11-24 23:58:59,800 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2023-11-24 23:58:59,811 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2023-11-24 23:58:59,824 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2023-11-24 23:58:59,835 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2023-11-24 23:58:59,848 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2023-11-24 23:58:59,859 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2023-11-24 23:58:59,872 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2023-11-24 23:58:59,883 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2023-11-24 23:58:59,896 WARN L240 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_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2023-11-24 23:58:59,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:59,953 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:59,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59 WrapperNode [2023-11-24 23:58:59,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:59,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:59,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:59,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:59,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,196 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5764 [2023-11-24 23:59:00,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:00,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:59:00,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:59:00,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:59:00,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:59:00,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:59:00,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:59:00,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:59:00,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (1/1) ... [2023-11-24 23:59:00,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:00,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:59:00,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:59:00,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e365a2f7-44d7-47a5-b357-87bd3d9bd65e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:59:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:59:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:59:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:59:00,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:59:00,804 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:59:00,808 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:59:04,046 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:04,277 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:04,278 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:59:04,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:04 BoogieIcfgContainer [2023-11-24 23:59:04,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:04,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:04,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:04,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:04,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:58" (1/3) ... [2023-11-24 23:59:04,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3724dfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:04, skipping insertion in model container [2023-11-24 23:59:04,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:59" (2/3) ... [2023-11-24 23:59:04,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3724dfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:04, skipping insertion in model container [2023-11-24 23:59:04,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:04" (3/3) ... [2023-11-24 23:59:04,290 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-24 23:59:04,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:04,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-24 23:59:04,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:04,411 INFO L357 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, mHoare=true, 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;@678dc5a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:04,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-24 23:59:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 1086 states, 1069 states have (on average 1.8297474275023387) internal successors, (1956), 1085 states have internal predecessors, (1956), 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) [2023-11-24 23:59:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-24 23:59:04,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:04,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:04,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:04,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:04,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1232435330, now seen corresponding path program 1 times [2023-11-24 23:59:04,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:04,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411937693] [2023-11-24 23:59:04,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:04,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:05,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:05,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411937693] [2023-11-24 23:59:05,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411937693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:05,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:05,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:59:05,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772005325] [2023-11-24 23:59:05,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:05,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:05,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:05,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:05,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:05,222 INFO L87 Difference]: Start difference. First operand has 1086 states, 1069 states have (on average 1.8297474275023387) internal successors, (1956), 1085 states have internal predecessors, (1956), 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 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-24 23:59:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:06,449 INFO L93 Difference]: Finished difference Result 1398 states and 2465 transitions. [2023-11-24 23:59:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:59:06,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2023-11-24 23:59:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:06,474 INFO L225 Difference]: With dead ends: 1398 [2023-11-24 23:59:06,476 INFO L226 Difference]: Without dead ends: 847 [2023-11-24 23:59:06,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:06,491 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 4385 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4385 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:06,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4385 Valid, 815 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 23:59:06,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-11-24 23:59:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2023-11-24 23:59:06,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3068592057761732) internal successors, (1086), 846 states have internal predecessors, (1086), 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) [2023-11-24 23:59:06,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1086 transitions. [2023-11-24 23:59:06,604 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1086 transitions. Word has length 71 [2023-11-24 23:59:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:06,606 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1086 transitions. [2023-11-24 23:59:06,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-24 23:59:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1086 transitions. [2023-11-24 23:59:06,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-24 23:59:06,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:06,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:06,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:59:06,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:06,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:06,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1527450296, now seen corresponding path program 1 times [2023-11-24 23:59:06,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:06,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086402655] [2023-11-24 23:59:06,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:06,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:06,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:06,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086402655] [2023-11-24 23:59:06,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086402655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:06,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:06,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:59:06,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369450879] [2023-11-24 23:59:06,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:06,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:06,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:06,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:06,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:06,886 INFO L87 Difference]: Start difference. First operand 847 states and 1086 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-24 23:59:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:07,473 INFO L93 Difference]: Finished difference Result 1025 states and 1298 transitions. [2023-11-24 23:59:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:59:07,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2023-11-24 23:59:07,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:07,477 INFO L225 Difference]: With dead ends: 1025 [2023-11-24 23:59:07,478 INFO L226 Difference]: Without dead ends: 605 [2023-11-24 23:59:07,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:07,480 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2255 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:07,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2255 Valid, 385 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 23:59:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-11-24 23:59:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2023-11-24 23:59:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 589 states have (on average 1.3157894736842106) internal successors, (775), 604 states have internal predecessors, (775), 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) [2023-11-24 23:59:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 775 transitions. [2023-11-24 23:59:07,498 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 775 transitions. Word has length 71 [2023-11-24 23:59:07,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:07,499 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 775 transitions. [2023-11-24 23:59:07,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-24 23:59:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 775 transitions. [2023-11-24 23:59:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-24 23:59:07,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:07,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:07,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:59:07,507 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:07,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:07,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2115552032, now seen corresponding path program 1 times [2023-11-24 23:59:07,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:07,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862480485] [2023-11-24 23:59:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:07,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:07,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:07,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862480485] [2023-11-24 23:59:07,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862480485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:07,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:07,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:59:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922846408] [2023-11-24 23:59:07,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:07,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:07,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:07,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:07,714 INFO L87 Difference]: Start difference. First operand 605 states and 775 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-24 23:59:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:08,088 INFO L93 Difference]: Finished difference Result 719 states and 898 transitions. [2023-11-24 23:59:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:59:08,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2023-11-24 23:59:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:08,091 INFO L225 Difference]: With dead ends: 719 [2023-11-24 23:59:08,091 INFO L226 Difference]: Without dead ends: 423 [2023-11-24 23:59:08,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:08,093 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1521 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:08,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 299 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:59:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-24 23:59:08,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2023-11-24 23:59:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3120393120393121) internal successors, (534), 422 states have internal predecessors, (534), 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) [2023-11-24 23:59:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions. [2023-11-24 23:59:08,102 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 71 [2023-11-24 23:59:08,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:08,102 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions. [2023-11-24 23:59:08,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-24 23:59:08,103 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions. [2023-11-24 23:59:08,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-24 23:59:08,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:08,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:08,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:59:08,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:08,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:08,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1156366953, now seen corresponding path program 1 times [2023-11-24 23:59:08,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:08,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277477183] [2023-11-24 23:59:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:08,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:08,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277477183] [2023-11-24 23:59:08,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277477183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:08,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:08,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:59:08,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443726658] [2023-11-24 23:59:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:08,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:08,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:08,375 INFO L87 Difference]: Start difference. First operand 423 states and 534 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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) [2023-11-24 23:59:08,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:08,689 INFO L93 Difference]: Finished difference Result 597 states and 752 transitions. [2023-11-24 23:59:08,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:59:08,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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) Word has length 72 [2023-11-24 23:59:08,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:08,692 INFO L225 Difference]: With dead ends: 597 [2023-11-24 23:59:08,693 INFO L226 Difference]: Without dead ends: 374 [2023-11-24 23:59:08,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:08,697 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 1365 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:08,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 276 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:59:08,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-24 23:59:08,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2023-11-24 23:59:08,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.3212290502793296) internal successors, (473), 373 states have internal predecessors, (473), 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) [2023-11-24 23:59:08,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 473 transitions. [2023-11-24 23:59:08,714 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 473 transitions. Word has length 72 [2023-11-24 23:59:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:08,715 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 473 transitions. [2023-11-24 23:59:08,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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) [2023-11-24 23:59:08,716 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 473 transitions. [2023-11-24 23:59:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-24 23:59:08,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:08,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:08,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:59:08,718 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:08,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1186891401, now seen corresponding path program 1 times [2023-11-24 23:59:08,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:08,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343808661] [2023-11-24 23:59:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:08,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:08,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:08,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343808661] [2023-11-24 23:59:08,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343808661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:08,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:08,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:59:08,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262751499] [2023-11-24 23:59:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:08,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:08,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:08,944 INFO L87 Difference]: Start difference. First operand 374 states and 473 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-24 23:59:09,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:09,327 INFO L93 Difference]: Finished difference Result 563 states and 714 transitions. [2023-11-24 23:59:09,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:59:09,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 73 [2023-11-24 23:59:09,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:09,331 INFO L225 Difference]: With dead ends: 563 [2023-11-24 23:59:09,332 INFO L226 Difference]: Without dead ends: 366 [2023-11-24 23:59:09,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:09,333 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1288 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:09,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 251 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:59:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-24 23:59:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2023-11-24 23:59:09,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.322857142857143) internal successors, (463), 365 states have internal predecessors, (463), 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) [2023-11-24 23:59:09,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 463 transitions. [2023-11-24 23:59:09,346 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 463 transitions. Word has length 73 [2023-11-24 23:59:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:09,350 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 463 transitions. [2023-11-24 23:59:09,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-24 23:59:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 463 transitions. [2023-11-24 23:59:09,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 23:59:09,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:09,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:09,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:59:09,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:09,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:09,353 INFO L85 PathProgramCache]: Analyzing trace with hash -117023922, now seen corresponding path program 1 times [2023-11-24 23:59:09,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:09,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323490176] [2023-11-24 23:59:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:09,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:09,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:09,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323490176] [2023-11-24 23:59:09,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323490176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:09,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:09,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-24 23:59:09,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909491195] [2023-11-24 23:59:09,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:09,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 23:59:09,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:09,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 23:59:09,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:59:09,912 INFO L87 Difference]: Start difference. First operand 366 states and 463 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 states have internal predecessors, (74), 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) [2023-11-24 23:59:10,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:10,974 INFO L93 Difference]: Finished difference Result 709 states and 902 transitions. [2023-11-24 23:59:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 23:59:10,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 states have internal predecessors, (74), 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 74 [2023-11-24 23:59:10,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:10,979 INFO L225 Difference]: With dead ends: 709 [2023-11-24 23:59:10,979 INFO L226 Difference]: Without dead ends: 634 [2023-11-24 23:59:10,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2023-11-24 23:59:10,981 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2155 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:10,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 1453 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:10,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-11-24 23:59:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 366. [2023-11-24 23:59:10,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.32) internal successors, (462), 365 states have internal predecessors, (462), 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) [2023-11-24 23:59:10,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 462 transitions. [2023-11-24 23:59:10,994 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 462 transitions. Word has length 74 [2023-11-24 23:59:10,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:10,995 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 462 transitions. [2023-11-24 23:59:10,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 states have internal predecessors, (74), 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) [2023-11-24 23:59:10,995 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 462 transitions. [2023-11-24 23:59:11,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 23:59:11,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:11,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:11,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:59:11,002 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:11,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:11,002 INFO L85 PathProgramCache]: Analyzing trace with hash 782905456, now seen corresponding path program 1 times [2023-11-24 23:59:11,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:11,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627164756] [2023-11-24 23:59:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:11,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:11,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:11,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627164756] [2023-11-24 23:59:11,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627164756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:11,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:11,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:59:11,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37631193] [2023-11-24 23:59:11,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:11,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 23:59:11,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:11,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 23:59:11,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:11,445 INFO L87 Difference]: Start difference. First operand 366 states and 462 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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) [2023-11-24 23:59:12,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:12,114 INFO L93 Difference]: Finished difference Result 684 states and 836 transitions. [2023-11-24 23:59:12,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:59:12,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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 74 [2023-11-24 23:59:12,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:12,117 INFO L225 Difference]: With dead ends: 684 [2023-11-24 23:59:12,117 INFO L226 Difference]: Without dead ends: 495 [2023-11-24 23:59:12,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-24 23:59:12,119 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2075 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:12,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 587 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 23:59:12,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-11-24 23:59:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 366. [2023-11-24 23:59:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3171428571428572) internal successors, (461), 365 states have internal predecessors, (461), 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) [2023-11-24 23:59:12,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 461 transitions. [2023-11-24 23:59:12,129 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 461 transitions. Word has length 74 [2023-11-24 23:59:12,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:12,130 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 461 transitions. [2023-11-24 23:59:12,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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) [2023-11-24 23:59:12,130 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 461 transitions. [2023-11-24 23:59:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 23:59:12,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:12,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:12,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:59:12,132 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:12,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:12,133 INFO L85 PathProgramCache]: Analyzing trace with hash 98797326, now seen corresponding path program 1 times [2023-11-24 23:59:12,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:12,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500922347] [2023-11-24 23:59:12,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:12,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:12,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:12,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500922347] [2023-11-24 23:59:12,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500922347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:12,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:12,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:12,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237569599] [2023-11-24 23:59:12,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:12,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:12,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:12,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:12,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:12,550 INFO L87 Difference]: Start difference. First operand 366 states and 461 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-11-24 23:59:13,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:13,625 INFO L93 Difference]: Finished difference Result 704 states and 897 transitions. [2023-11-24 23:59:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 23:59:13,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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 74 [2023-11-24 23:59:13,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:13,629 INFO L225 Difference]: With dead ends: 704 [2023-11-24 23:59:13,629 INFO L226 Difference]: Without dead ends: 638 [2023-11-24 23:59:13,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-11-24 23:59:13,631 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2021 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:13,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 1211 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:13,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-24 23:59:13,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 366. [2023-11-24 23:59:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3142857142857143) internal successors, (460), 365 states have internal predecessors, (460), 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) [2023-11-24 23:59:13,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 460 transitions. [2023-11-24 23:59:13,643 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 460 transitions. Word has length 74 [2023-11-24 23:59:13,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:13,644 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 460 transitions. [2023-11-24 23:59:13,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-11-24 23:59:13,644 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 460 transitions. [2023-11-24 23:59:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 23:59:13,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:13,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:13,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 23:59:13,646 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:13,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:13,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2064648218, now seen corresponding path program 1 times [2023-11-24 23:59:13,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:13,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778493354] [2023-11-24 23:59:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:13,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:14,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778493354] [2023-11-24 23:59:14,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778493354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:14,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:14,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:14,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190332076] [2023-11-24 23:59:14,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:14,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:14,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:14,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:14,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:14,100 INFO L87 Difference]: Start difference. First operand 366 states and 460 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-11-24 23:59:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:15,281 INFO L93 Difference]: Finished difference Result 747 states and 950 transitions. [2023-11-24 23:59:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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 74 [2023-11-24 23:59:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:15,286 INFO L225 Difference]: With dead ends: 747 [2023-11-24 23:59:15,286 INFO L226 Difference]: Without dead ends: 642 [2023-11-24 23:59:15,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:15,288 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1790 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:15,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 2025 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 23:59:15,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-11-24 23:59:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 366. [2023-11-24 23:59:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3114285714285714) internal successors, (459), 365 states have internal predecessors, (459), 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) [2023-11-24 23:59:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 459 transitions. [2023-11-24 23:59:15,299 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 459 transitions. Word has length 74 [2023-11-24 23:59:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:15,300 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 459 transitions. [2023-11-24 23:59:15,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-11-24 23:59:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 459 transitions. [2023-11-24 23:59:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 23:59:15,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:15,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:15,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 23:59:15,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:15,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1716231595, now seen corresponding path program 1 times [2023-11-24 23:59:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:15,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859312604] [2023-11-24 23:59:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:15,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:15,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859312604] [2023-11-24 23:59:15,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859312604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:15,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:15,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:15,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556968284] [2023-11-24 23:59:15,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:15,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:15,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:15,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:15,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:15,697 INFO L87 Difference]: Start difference. First operand 366 states and 459 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:16,879 INFO L93 Difference]: Finished difference Result 683 states and 859 transitions. [2023-11-24 23:59:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:16,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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 76 [2023-11-24 23:59:16,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:16,882 INFO L225 Difference]: With dead ends: 683 [2023-11-24 23:59:16,884 INFO L226 Difference]: Without dead ends: 630 [2023-11-24 23:59:16,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:16,886 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1529 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:16,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 1727 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 23:59:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-11-24 23:59:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2023-11-24 23:59:16,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3085714285714285) internal successors, (458), 365 states have internal predecessors, (458), 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) [2023-11-24 23:59:16,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 458 transitions. [2023-11-24 23:59:16,898 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 458 transitions. Word has length 76 [2023-11-24 23:59:16,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:16,899 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 458 transitions. [2023-11-24 23:59:16,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:16,899 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 458 transitions. [2023-11-24 23:59:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 23:59:16,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:16,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:16,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 23:59:16,901 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:16,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:16,902 INFO L85 PathProgramCache]: Analyzing trace with hash -694606913, now seen corresponding path program 1 times [2023-11-24 23:59:16,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:16,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078134547] [2023-11-24 23:59:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:16,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:17,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:17,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078134547] [2023-11-24 23:59:17,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078134547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:17,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:17,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:17,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844317437] [2023-11-24 23:59:17,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:17,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:17,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:17,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:17,230 INFO L87 Difference]: Start difference. First operand 366 states and 458 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:18,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:18,357 INFO L93 Difference]: Finished difference Result 762 states and 960 transitions. [2023-11-24 23:59:18,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 23:59:18,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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 76 [2023-11-24 23:59:18,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:18,360 INFO L225 Difference]: With dead ends: 762 [2023-11-24 23:59:18,361 INFO L226 Difference]: Without dead ends: 642 [2023-11-24 23:59:18,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:59:18,363 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 1219 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:18,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1543 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:59:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-11-24 23:59:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 366. [2023-11-24 23:59:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3057142857142856) internal successors, (457), 365 states have internal predecessors, (457), 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) [2023-11-24 23:59:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 457 transitions. [2023-11-24 23:59:18,375 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 457 transitions. Word has length 76 [2023-11-24 23:59:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:18,375 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 457 transitions. [2023-11-24 23:59:18,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 457 transitions. [2023-11-24 23:59:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 23:59:18,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:18,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:18,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-24 23:59:18,378 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:18,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:18,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1449671967, now seen corresponding path program 1 times [2023-11-24 23:59:18,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:18,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620805552] [2023-11-24 23:59:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:18,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:18,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:18,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:18,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620805552] [2023-11-24 23:59:18,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620805552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:18,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:18,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:18,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664831589] [2023-11-24 23:59:18,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:18,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:18,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:18,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:18,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:18,675 INFO L87 Difference]: Start difference. First operand 366 states and 457 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:19,729 INFO L93 Difference]: Finished difference Result 713 states and 902 transitions. [2023-11-24 23:59:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 23:59:19,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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 76 [2023-11-24 23:59:19,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:19,733 INFO L225 Difference]: With dead ends: 713 [2023-11-24 23:59:19,733 INFO L226 Difference]: Without dead ends: 638 [2023-11-24 23:59:19,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:59:19,735 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1694 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:19,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 1610 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-24 23:59:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 366. [2023-11-24 23:59:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.302857142857143) internal successors, (456), 365 states have internal predecessors, (456), 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) [2023-11-24 23:59:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 456 transitions. [2023-11-24 23:59:19,746 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 456 transitions. Word has length 76 [2023-11-24 23:59:19,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:19,746 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 456 transitions. [2023-11-24 23:59:19,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:19,747 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 456 transitions. [2023-11-24 23:59:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 23:59:19,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:19,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:19,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 23:59:19,749 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:19,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash -263935870, now seen corresponding path program 1 times [2023-11-24 23:59:19,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975596304] [2023-11-24 23:59:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:19,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:20,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:20,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975596304] [2023-11-24 23:59:20,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975596304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:20,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:20,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:20,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143071623] [2023-11-24 23:59:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:20,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:20,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:20,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:20,092 INFO L87 Difference]: Start difference. First operand 366 states and 456 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:21,266 INFO L93 Difference]: Finished difference Result 683 states and 857 transitions. [2023-11-24 23:59:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:21,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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 76 [2023-11-24 23:59:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:21,271 INFO L225 Difference]: With dead ends: 683 [2023-11-24 23:59:21,271 INFO L226 Difference]: Without dead ends: 630 [2023-11-24 23:59:21,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:21,273 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1079 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:21,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1846 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 23:59:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-11-24 23:59:21,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2023-11-24 23:59:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3) internal successors, (455), 365 states have internal predecessors, (455), 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) [2023-11-24 23:59:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 455 transitions. [2023-11-24 23:59:21,285 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 455 transitions. Word has length 76 [2023-11-24 23:59:21,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:21,286 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 455 transitions. [2023-11-24 23:59:21,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 455 transitions. [2023-11-24 23:59:21,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 23:59:21,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:21,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:21,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-24 23:59:21,288 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:21,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1457950665, now seen corresponding path program 1 times [2023-11-24 23:59:21,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:21,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435847392] [2023-11-24 23:59:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:21,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:21,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:21,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435847392] [2023-11-24 23:59:21,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435847392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:21,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:21,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:21,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057414365] [2023-11-24 23:59:21,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:21,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:21,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:21,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:21,595 INFO L87 Difference]: Start difference. First operand 366 states and 455 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:22,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:22,675 INFO L93 Difference]: Finished difference Result 683 states and 855 transitions. [2023-11-24 23:59:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:22,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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 76 [2023-11-24 23:59:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:22,679 INFO L225 Difference]: With dead ends: 683 [2023-11-24 23:59:22,680 INFO L226 Difference]: Without dead ends: 630 [2023-11-24 23:59:22,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:22,681 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1446 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:22,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 1542 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:59:22,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-11-24 23:59:22,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2023-11-24 23:59:22,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2971428571428572) internal successors, (454), 365 states have internal predecessors, (454), 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) [2023-11-24 23:59:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 454 transitions. [2023-11-24 23:59:22,696 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 454 transitions. Word has length 76 [2023-11-24 23:59:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:22,697 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 454 transitions. [2023-11-24 23:59:22,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 454 transitions. [2023-11-24 23:59:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 23:59:22,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:22,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:22,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-24 23:59:22,700 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:22,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash -995702185, now seen corresponding path program 1 times [2023-11-24 23:59:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179274497] [2023-11-24 23:59:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:22,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:23,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:23,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179274497] [2023-11-24 23:59:23,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179274497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:23,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:23,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:23,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513906654] [2023-11-24 23:59:23,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:23,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:23,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:23,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:23,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:23,038 INFO L87 Difference]: Start difference. First operand 366 states and 454 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:23,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:23,990 INFO L93 Difference]: Finished difference Result 679 states and 850 transitions. [2023-11-24 23:59:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:23,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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 76 [2023-11-24 23:59:23,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:23,994 INFO L225 Difference]: With dead ends: 679 [2023-11-24 23:59:23,995 INFO L226 Difference]: Without dead ends: 630 [2023-11-24 23:59:23,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:23,996 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1508 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:23,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1514 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:23,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-11-24 23:59:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2023-11-24 23:59:24,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2942857142857143) internal successors, (453), 365 states have internal predecessors, (453), 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) [2023-11-24 23:59:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 453 transitions. [2023-11-24 23:59:24,007 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 453 transitions. Word has length 76 [2023-11-24 23:59:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:24,008 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 453 transitions. [2023-11-24 23:59:24,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 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) [2023-11-24 23:59:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 453 transitions. [2023-11-24 23:59:24,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:24,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:24,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:24,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-24 23:59:24,010 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:24,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash 513544580, now seen corresponding path program 1 times [2023-11-24 23:59:24,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:24,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722307209] [2023-11-24 23:59:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:24,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:24,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:24,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722307209] [2023-11-24 23:59:24,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722307209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:24,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:24,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:24,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820647558] [2023-11-24 23:59:24,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:24,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:24,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:24,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:24,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:24,434 INFO L87 Difference]: Start difference. First operand 366 states and 453 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:25,449 INFO L93 Difference]: Finished difference Result 688 states and 857 transitions. [2023-11-24 23:59:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:25,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:25,453 INFO L225 Difference]: With dead ends: 688 [2023-11-24 23:59:25,454 INFO L226 Difference]: Without dead ends: 630 [2023-11-24 23:59:25,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:25,455 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 1625 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:25,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 1772 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:25,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-11-24 23:59:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2023-11-24 23:59:25,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2914285714285714) internal successors, (452), 365 states have internal predecessors, (452), 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) [2023-11-24 23:59:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 452 transitions. [2023-11-24 23:59:25,471 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 452 transitions. Word has length 78 [2023-11-24 23:59:25,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:25,472 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 452 transitions. [2023-11-24 23:59:25,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:25,472 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 452 transitions. [2023-11-24 23:59:25,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:25,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:25,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:25,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-24 23:59:25,474 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:25,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:25,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2002078059, now seen corresponding path program 1 times [2023-11-24 23:59:25,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:25,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884800229] [2023-11-24 23:59:25,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:25,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:25,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:25,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884800229] [2023-11-24 23:59:25,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884800229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:25,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:25,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:25,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865365940] [2023-11-24 23:59:25,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:25,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:25,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:25,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:25,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:25,823 INFO L87 Difference]: Start difference. First operand 366 states and 452 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:26,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:26,850 INFO L93 Difference]: Finished difference Result 660 states and 815 transitions. [2023-11-24 23:59:26,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:26,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:26,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:26,854 INFO L225 Difference]: With dead ends: 660 [2023-11-24 23:59:26,855 INFO L226 Difference]: Without dead ends: 614 [2023-11-24 23:59:26,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:26,856 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1527 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:26,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1651 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:59:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-11-24 23:59:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 366. [2023-11-24 23:59:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2885714285714285) internal successors, (451), 365 states have internal predecessors, (451), 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) [2023-11-24 23:59:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 451 transitions. [2023-11-24 23:59:26,868 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 451 transitions. Word has length 78 [2023-11-24 23:59:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:26,869 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 451 transitions. [2023-11-24 23:59:26,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 451 transitions. [2023-11-24 23:59:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:26,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:26,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:26,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-24 23:59:26,871 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:26,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:26,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1513420061, now seen corresponding path program 1 times [2023-11-24 23:59:26,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:26,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690861407] [2023-11-24 23:59:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:26,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:27,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:27,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690861407] [2023-11-24 23:59:27,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690861407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:27,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:27,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717852677] [2023-11-24 23:59:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:27,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:27,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:27,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:27,184 INFO L87 Difference]: Start difference. First operand 366 states and 451 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:28,239 INFO L93 Difference]: Finished difference Result 719 states and 897 transitions. [2023-11-24 23:59:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 23:59:28,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:28,243 INFO L225 Difference]: With dead ends: 719 [2023-11-24 23:59:28,243 INFO L226 Difference]: Without dead ends: 638 [2023-11-24 23:59:28,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:59:28,245 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1577 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:28,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 1640 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-24 23:59:28,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 366. [2023-11-24 23:59:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2857142857142858) internal successors, (450), 365 states have internal predecessors, (450), 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) [2023-11-24 23:59:28,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 450 transitions. [2023-11-24 23:59:28,257 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 450 transitions. Word has length 78 [2023-11-24 23:59:28,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:28,257 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 450 transitions. [2023-11-24 23:59:28,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:28,258 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 450 transitions. [2023-11-24 23:59:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:28,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:28,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:28,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-24 23:59:28,260 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:28,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:28,261 INFO L85 PathProgramCache]: Analyzing trace with hash -675860338, now seen corresponding path program 1 times [2023-11-24 23:59:28,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:28,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504563499] [2023-11-24 23:59:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:28,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:28,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:28,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504563499] [2023-11-24 23:59:28,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504563499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:28,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:28,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 23:59:28,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580551027] [2023-11-24 23:59:28,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:28,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 23:59:28,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:28,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 23:59:28,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:59:28,798 INFO L87 Difference]: Start difference. First operand 366 states and 450 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 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) [2023-11-24 23:59:30,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:30,848 INFO L93 Difference]: Finished difference Result 899 states and 1129 transitions. [2023-11-24 23:59:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-24 23:59:30,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:30,853 INFO L225 Difference]: With dead ends: 899 [2023-11-24 23:59:30,854 INFO L226 Difference]: Without dead ends: 882 [2023-11-24 23:59:30,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-11-24 23:59:30,856 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 3041 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:30,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3041 Valid, 2025 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:59:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-11-24 23:59:30,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 370. [2023-11-24 23:59:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 354 states have (on average 1.2824858757062148) internal successors, (454), 369 states have internal predecessors, (454), 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) [2023-11-24 23:59:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 454 transitions. [2023-11-24 23:59:30,870 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 454 transitions. Word has length 78 [2023-11-24 23:59:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:30,870 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 454 transitions. [2023-11-24 23:59:30,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 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) [2023-11-24 23:59:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 454 transitions. [2023-11-24 23:59:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:30,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:30,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:30,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-24 23:59:30,873 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:30,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:30,873 INFO L85 PathProgramCache]: Analyzing trace with hash 812673141, now seen corresponding path program 1 times [2023-11-24 23:59:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:30,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108416607] [2023-11-24 23:59:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:30,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:31,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:31,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108416607] [2023-11-24 23:59:31,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108416607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:31,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:31,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:31,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721326380] [2023-11-24 23:59:31,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:31,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:31,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:31,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:31,210 INFO L87 Difference]: Start difference. First operand 370 states and 454 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:32,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:32,358 INFO L93 Difference]: Finished difference Result 623 states and 762 transitions. [2023-11-24 23:59:32,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:32,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:32,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:32,362 INFO L225 Difference]: With dead ends: 623 [2023-11-24 23:59:32,362 INFO L226 Difference]: Without dead ends: 618 [2023-11-24 23:59:32,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:32,364 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1519 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:32,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1652 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 23:59:32,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2023-11-24 23:59:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 370. [2023-11-24 23:59:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 354 states have (on average 1.2796610169491525) internal successors, (453), 369 states have internal predecessors, (453), 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) [2023-11-24 23:59:32,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 453 transitions. [2023-11-24 23:59:32,387 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 453 transitions. Word has length 78 [2023-11-24 23:59:32,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:32,388 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 453 transitions. [2023-11-24 23:59:32,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:32,388 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 453 transitions. [2023-11-24 23:59:32,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:32,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:32,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:32,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-24 23:59:32,390 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:32,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:32,391 INFO L85 PathProgramCache]: Analyzing trace with hash 406757360, now seen corresponding path program 1 times [2023-11-24 23:59:32,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:32,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459562132] [2023-11-24 23:59:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:32,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:32,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:32,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:32,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459562132] [2023-11-24 23:59:32,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459562132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:32,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:32,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 23:59:32,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24180209] [2023-11-24 23:59:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:32,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 23:59:32,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:32,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 23:59:32,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:59:32,966 INFO L87 Difference]: Start difference. First operand 370 states and 453 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 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) [2023-11-24 23:59:34,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:34,693 INFO L93 Difference]: Finished difference Result 839 states and 1045 transitions. [2023-11-24 23:59:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-24 23:59:34,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:34,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:34,697 INFO L225 Difference]: With dead ends: 839 [2023-11-24 23:59:34,698 INFO L226 Difference]: Without dead ends: 834 [2023-11-24 23:59:34,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-11-24 23:59:34,699 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 3250 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:34,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3250 Valid, 1451 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-24 23:59:34,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2023-11-24 23:59:34,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 374. [2023-11-24 23:59:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.276536312849162) internal successors, (457), 373 states have internal predecessors, (457), 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) [2023-11-24 23:59:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 457 transitions. [2023-11-24 23:59:34,710 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 457 transitions. Word has length 78 [2023-11-24 23:59:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:34,711 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 457 transitions. [2023-11-24 23:59:34,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 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) [2023-11-24 23:59:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 457 transitions. [2023-11-24 23:59:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:34,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:34,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:34,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-24 23:59:34,713 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:34,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:34,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1340403830, now seen corresponding path program 1 times [2023-11-24 23:59:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:34,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191111194] [2023-11-24 23:59:34,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:34,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:35,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:35,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:35,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191111194] [2023-11-24 23:59:35,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191111194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:35,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:35,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:35,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179245545] [2023-11-24 23:59:35,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:35,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:35,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:35,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:35,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:35,029 INFO L87 Difference]: Start difference. First operand 374 states and 457 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:36,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:36,007 INFO L93 Difference]: Finished difference Result 661 states and 812 transitions. [2023-11-24 23:59:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:36,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:36,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:36,014 INFO L225 Difference]: With dead ends: 661 [2023-11-24 23:59:36,014 INFO L226 Difference]: Without dead ends: 618 [2023-11-24 23:59:36,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:36,015 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 1523 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:36,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1617 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:36,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2023-11-24 23:59:36,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 374. [2023-11-24 23:59:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.2737430167597765) internal successors, (456), 373 states have internal predecessors, (456), 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) [2023-11-24 23:59:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 456 transitions. [2023-11-24 23:59:36,027 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 456 transitions. Word has length 78 [2023-11-24 23:59:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:36,027 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 456 transitions. [2023-11-24 23:59:36,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:36,028 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 456 transitions. [2023-11-24 23:59:36,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:36,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:36,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:36,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-24 23:59:36,030 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:36,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:36,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1562286502, now seen corresponding path program 1 times [2023-11-24 23:59:36,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:36,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863943063] [2023-11-24 23:59:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:36,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:36,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:36,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863943063] [2023-11-24 23:59:36,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863943063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:36,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:36,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:59:36,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771392130] [2023-11-24 23:59:36,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:36,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:59:36,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:36,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:59:36,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:36,351 INFO L87 Difference]: Start difference. First operand 374 states and 456 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:37,364 INFO L93 Difference]: Finished difference Result 664 states and 814 transitions. [2023-11-24 23:59:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:59:37,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2023-11-24 23:59:37,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:37,370 INFO L225 Difference]: With dead ends: 664 [2023-11-24 23:59:37,371 INFO L226 Difference]: Without dead ends: 618 [2023-11-24 23:59:37,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:59:37,374 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1514 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:37,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1637 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:59:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2023-11-24 23:59:37,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 374. [2023-11-24 23:59:37,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.270949720670391) internal successors, (455), 373 states have internal predecessors, (455), 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) [2023-11-24 23:59:37,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 455 transitions. [2023-11-24 23:59:37,386 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 455 transitions. Word has length 78 [2023-11-24 23:59:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:37,386 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 455 transitions. [2023-11-24 23:59:37,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 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) [2023-11-24 23:59:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 455 transitions. [2023-11-24 23:59:37,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 23:59:37,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:37,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:37,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-24 23:59:37,389 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-24 23:59:37,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:37,390 INFO L85 PathProgramCache]: Analyzing trace with hash 978066431, now seen corresponding path program 1 times [2023-11-24 23:59:37,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:37,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746364131] [2023-11-24 23:59:37,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:37,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:37,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:37,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746364131] [2023-11-24 23:59:37,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746364131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:37,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:37,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 23:59:37,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662335272] [2023-11-24 23:59:37,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 23:59:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:37,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 23:59:37,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:59:37,862 INFO L87 Difference]: Start difference. First operand 374 states and 455 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 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)