./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:00:22,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:00:22,259 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:00:22,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:00:22,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:00:22,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:00:22,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:00:22,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:00:22,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:00:22,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:00:22,305 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:00:22,305 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:00:22,305 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:00:22,305 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:00:22,305 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:00:22,305 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:00:22,305 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:00:22,306 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:00:22,308 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:00:22,308 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:00:22,308 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:00:22,308 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:00:22,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:00:22,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:00:22,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:00:22,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:00:22,310 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:00:22,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:00:22,311 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 [2024-11-14 03:00:22,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:00:22,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:00:22,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:00:22,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:00:22,690 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:00:22,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c Unable to find full path for "g++" [2024-11-14 03:00:24,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:00:25,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:00:25,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2024-11-14 03:00:25,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data/fd3566fac/169b36dc76814ca0be0b4da45080be79/FLAGd3bae3ce6 [2024-11-14 03:00:25,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data/fd3566fac/169b36dc76814ca0be0b4da45080be79 [2024-11-14 03:00:25,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:00:25,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:00:25,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:00:25,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:00:25,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:00:25,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:00:25" (1/1) ... [2024-11-14 03:00:25,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6388161d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:25, skipping insertion in model container [2024-11-14 03:00:25,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:00:25" (1/1) ... [2024-11-14 03:00:25,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:00:26,503 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2024-11-14 03:00:26,577 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2024-11-14 03:00:26,625 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2024-11-14 03:00:26,644 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2024-11-14 03:00:26,660 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2024-11-14 03:00:26,733 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2024-11-14 03:00:26,765 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2024-11-14 03:00:26,782 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2024-11-14 03:00:26,797 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2024-11-14 03:00:26,821 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2024-11-14 03:00:26,837 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2024-11-14 03:00:26,854 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2024-11-14 03:00:26,869 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2024-11-14 03:00:26,906 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2024-11-14 03:00:26,921 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2024-11-14 03:00:26,937 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2024-11-14 03:00:27,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:00:27,028 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:00:27,222 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2024-11-14 03:00:27,295 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2024-11-14 03:00:27,323 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2024-11-14 03:00:27,335 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2024-11-14 03:00:27,347 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2024-11-14 03:00:27,396 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2024-11-14 03:00:27,417 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2024-11-14 03:00:27,428 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2024-11-14 03:00:27,439 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2024-11-14 03:00:27,451 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2024-11-14 03:00:27,461 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2024-11-14 03:00:27,471 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2024-11-14 03:00:27,482 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2024-11-14 03:00:27,495 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2024-11-14 03:00:27,507 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2024-11-14 03:00:27,519 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2024-11-14 03:00:27,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:00:27,580 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:00:27,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27 WrapperNode [2024-11-14 03:00:27,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:00:27,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:00:27,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:00:27,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:00:27,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:27,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:27,831 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6234 [2024-11-14 03:00:27,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:00:27,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:00:27,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:00:27,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:00:27,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:27,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:27,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:27,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:27,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:27,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:28,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:28,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:28,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:00:28,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:00:28,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:00:28,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:00:28,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (1/1) ... [2024-11-14 03:00:28,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:00:28,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:00:28,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:00:28,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:00:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:00:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:00:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:00:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:00:28,449 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:00:28,452 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:00:32,924 INFO L? ?]: Removed 1254 outVars from TransFormulas that were not future-live. [2024-11-14 03:00:32,924 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:00:33,202 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:00:33,202 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:00:33,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:00:33 BoogieIcfgContainer [2024-11-14 03:00:33,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:00:33,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:00:33,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:00:33,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:00:33,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:00:25" (1/3) ... [2024-11-14 03:00:33,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740ae4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:00:33, skipping insertion in model container [2024-11-14 03:00:33,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:27" (2/3) ... [2024-11-14 03:00:33,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740ae4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:00:33, skipping insertion in model container [2024-11-14 03:00:33,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:00:33" (3/3) ... [2024-11-14 03:00:33,213 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2024-11-14 03:00:33,228 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:00:33,231 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c that has 1 procedures, 1170 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2024-11-14 03:00:33,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:00:33,347 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@782444ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:00:33,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-14 03:00:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 1170 states, 1153 states have (on average 1.7710320901994796) internal successors, (2042), 1169 states have internal predecessors, (2042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:00:33,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:33,391 INFO L215 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] [2024-11-14 03:00:33,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:33,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash -959725519, now seen corresponding path program 1 times [2024-11-14 03:00:33,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:33,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054271994] [2024-11-14 03:00:33,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:33,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:34,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:34,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:34,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054271994] [2024-11-14 03:00:34,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054271994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:34,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:34,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:00:34,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563934750] [2024-11-14 03:00:34,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:34,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:00:34,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:34,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:00:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:00:34,286 INFO L87 Difference]: Start difference. First operand has 1170 states, 1153 states have (on average 1.7710320901994796) internal successors, (2042), 1169 states have internal predecessors, (2042), 0 states have call successors, (0), 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 14.4) 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) [2024-11-14 03:00:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:35,499 INFO L93 Difference]: Finished difference Result 1365 states and 2339 transitions. [2024-11-14 03:00:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:00:35,502 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 [2024-11-14 03:00:35,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:35,525 INFO L225 Difference]: With dead ends: 1365 [2024-11-14 03:00:35,525 INFO L226 Difference]: Without dead ends: 788 [2024-11-14 03:00:35,534 INFO L431 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 [2024-11-14 03:00:35,537 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 3906 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3906 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:35,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3906 Valid, 818 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:00:35,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-14 03:00:35,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2024-11-14 03:00:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.2681347150259068) internal successors, (979), 787 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 979 transitions. [2024-11-14 03:00:35,648 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 979 transitions. Word has length 72 [2024-11-14 03:00:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:35,651 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 979 transitions. [2024-11-14 03:00:35,651 INFO L472 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) [2024-11-14 03:00:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 979 transitions. [2024-11-14 03:00:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:00:35,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:35,656 INFO L215 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] [2024-11-14 03:00:35,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:00:35,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:35,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:35,657 INFO L85 PathProgramCache]: Analyzing trace with hash -968066446, now seen corresponding path program 1 times [2024-11-14 03:00:35,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:35,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067892975] [2024-11-14 03:00:35,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:35,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:36,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:36,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067892975] [2024-11-14 03:00:36,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067892975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:36,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:36,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:00:36,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327790220] [2024-11-14 03:00:36,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:36,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:00:36,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:36,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:00:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:00:36,017 INFO L87 Difference]: Start difference. First operand 788 states and 979 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) [2024-11-14 03:00:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:36,662 INFO L93 Difference]: Finished difference Result 1061 states and 1325 transitions. [2024-11-14 03:00:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:00:36,664 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 [2024-11-14 03:00:36,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:36,668 INFO L225 Difference]: With dead ends: 1061 [2024-11-14 03:00:36,668 INFO L226 Difference]: Without dead ends: 661 [2024-11-14 03:00:36,670 INFO L431 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 [2024-11-14 03:00:36,672 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 2447 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:36,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2447 Valid, 436 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:00:36,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-11-14 03:00:36,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2024-11-14 03:00:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 645 states have (on average 1.2883720930232558) internal successors, (831), 660 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:36,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 831 transitions. [2024-11-14 03:00:36,709 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 831 transitions. Word has length 72 [2024-11-14 03:00:36,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:36,710 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 831 transitions. [2024-11-14 03:00:36,710 INFO L472 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) [2024-11-14 03:00:36,710 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 831 transitions. [2024-11-14 03:00:36,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:00:36,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:36,715 INFO L215 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] [2024-11-14 03:00:36,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:00:36,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:36,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:36,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1526182328, now seen corresponding path program 1 times [2024-11-14 03:00:36,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:36,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884163510] [2024-11-14 03:00:36,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:36,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:37,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:37,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884163510] [2024-11-14 03:00:37,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884163510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:37,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:37,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:00:37,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803950257] [2024-11-14 03:00:37,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:37,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:00:37,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:00:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:00:37,099 INFO L87 Difference]: Start difference. First operand 661 states and 831 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) [2024-11-14 03:00:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:37,535 INFO L93 Difference]: Finished difference Result 778 states and 957 transitions. [2024-11-14 03:00:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:00:37,536 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 [2024-11-14 03:00:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:37,539 INFO L225 Difference]: With dead ends: 778 [2024-11-14 03:00:37,541 INFO L226 Difference]: Without dead ends: 461 [2024-11-14 03:00:37,541 INFO L431 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 [2024-11-14 03:00:37,542 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 1634 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:37,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 336 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:00:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-14 03:00:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2024-11-14 03:00:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 445 states have (on average 1.2853932584269663) internal successors, (572), 460 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 572 transitions. [2024-11-14 03:00:37,556 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 572 transitions. Word has length 72 [2024-11-14 03:00:37,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:37,556 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 572 transitions. [2024-11-14 03:00:37,557 INFO L472 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) [2024-11-14 03:00:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 572 transitions. [2024-11-14 03:00:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:00:37,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:37,560 INFO L215 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] [2024-11-14 03:00:37,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:00:37,560 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:37,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1953545306, now seen corresponding path program 1 times [2024-11-14 03:00:37,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:37,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952297016] [2024-11-14 03:00:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:37,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:37,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:37,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952297016] [2024-11-14 03:00:37,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952297016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:37,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:37,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:00:37,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571228246] [2024-11-14 03:00:37,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:37,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:00:37,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:00:37,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:00:37,789 INFO L87 Difference]: Start difference. First operand 461 states and 572 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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) [2024-11-14 03:00:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:38,184 INFO L93 Difference]: Finished difference Result 650 states and 805 transitions. [2024-11-14 03:00:38,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:00:38,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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 [2024-11-14 03:00:38,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:38,186 INFO L225 Difference]: With dead ends: 650 [2024-11-14 03:00:38,187 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 03:00:38,187 INFO L431 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 [2024-11-14 03:00:38,188 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1469 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:38,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 310 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:00:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 03:00:38,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-11-14 03:00:38,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.2926208651399491) internal successors, (508), 408 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 508 transitions. [2024-11-14 03:00:38,199 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 508 transitions. Word has length 74 [2024-11-14 03:00:38,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:38,200 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 508 transitions. [2024-11-14 03:00:38,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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) [2024-11-14 03:00:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 508 transitions. [2024-11-14 03:00:38,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:00:38,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:38,202 INFO L215 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] [2024-11-14 03:00:38,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:00:38,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:38,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:38,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1983390979, now seen corresponding path program 1 times [2024-11-14 03:00:38,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:38,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720847858] [2024-11-14 03:00:38,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:38,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:38,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:38,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720847858] [2024-11-14 03:00:38,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720847858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:38,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:38,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:00:38,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845101578] [2024-11-14 03:00:38,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:38,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:00:38,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:38,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:00:38,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:00:38,478 INFO L87 Difference]: Start difference. First operand 409 states and 508 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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) [2024-11-14 03:00:38,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:38,927 INFO L93 Difference]: Finished difference Result 616 states and 767 transitions. [2024-11-14 03:00:38,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:00:38,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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 [2024-11-14 03:00:38,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:38,930 INFO L225 Difference]: With dead ends: 616 [2024-11-14 03:00:38,930 INFO L226 Difference]: Without dead ends: 401 [2024-11-14 03:00:38,930 INFO L431 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 [2024-11-14 03:00:38,931 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1392 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:38,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 285 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:00:38,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-14 03:00:38,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-14 03:00:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2935064935064935) internal successors, (498), 400 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:38,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 498 transitions. [2024-11-14 03:00:38,941 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 498 transitions. Word has length 76 [2024-11-14 03:00:38,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:38,941 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 498 transitions. [2024-11-14 03:00:38,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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) [2024-11-14 03:00:38,942 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 498 transitions. [2024-11-14 03:00:38,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:00:38,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:38,943 INFO L215 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] [2024-11-14 03:00:38,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:00:38,943 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:38,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash 802660192, now seen corresponding path program 1 times [2024-11-14 03:00:38,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:38,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472668018] [2024-11-14 03:00:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:38,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:39,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:39,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472668018] [2024-11-14 03:00:39,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472668018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:39,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:39,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:00:39,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967482432] [2024-11-14 03:00:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:39,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:00:39,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:39,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:00:39,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:00:39,799 INFO L87 Difference]: Start difference. First operand 401 states and 498 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 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) [2024-11-14 03:00:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:40,865 INFO L93 Difference]: Finished difference Result 632 states and 772 transitions. [2024-11-14 03:00:40,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:00:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 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 [2024-11-14 03:00:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:40,869 INFO L225 Difference]: With dead ends: 632 [2024-11-14 03:00:40,869 INFO L226 Difference]: Without dead ends: 582 [2024-11-14 03:00:40,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:00:40,870 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 1339 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:40,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 1566 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:00:40,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-14 03:00:40,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 401. [2024-11-14 03:00:40,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.290909090909091) internal successors, (497), 400 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 497 transitions. [2024-11-14 03:00:40,891 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 497 transitions. Word has length 78 [2024-11-14 03:00:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:40,891 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 497 transitions. [2024-11-14 03:00:40,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 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) [2024-11-14 03:00:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 497 transitions. [2024-11-14 03:00:40,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:00:40,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:40,911 INFO L215 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] [2024-11-14 03:00:40,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:00:40,911 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:40,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:40,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1964857184, now seen corresponding path program 1 times [2024-11-14 03:00:40,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:40,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44888681] [2024-11-14 03:00:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:41,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:41,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44888681] [2024-11-14 03:00:41,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44888681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:41,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:41,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:00:41,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101189195] [2024-11-14 03:00:41,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:41,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:00:41,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:41,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:00:41,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:00:41,357 INFO L87 Difference]: Start difference. First operand 401 states and 497 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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) [2024-11-14 03:00:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:42,239 INFO L93 Difference]: Finished difference Result 757 states and 909 transitions. [2024-11-14 03:00:42,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:00:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 [2024-11-14 03:00:42,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:42,243 INFO L225 Difference]: With dead ends: 757 [2024-11-14 03:00:42,243 INFO L226 Difference]: Without dead ends: 549 [2024-11-14 03:00:42,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:00:42,244 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 1070 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:42,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 921 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:00:42,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-14 03:00:42,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 401. [2024-11-14 03:00:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2883116883116883) internal successors, (496), 400 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 496 transitions. [2024-11-14 03:00:42,262 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 496 transitions. Word has length 78 [2024-11-14 03:00:42,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:42,262 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 496 transitions. [2024-11-14 03:00:42,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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) [2024-11-14 03:00:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 496 transitions. [2024-11-14 03:00:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:00:42,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:42,264 INFO L215 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] [2024-11-14 03:00:42,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:00:42,264 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:42,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1668159008, now seen corresponding path program 1 times [2024-11-14 03:00:42,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:42,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483600954] [2024-11-14 03:00:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:42,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:42,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:42,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483600954] [2024-11-14 03:00:42,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483600954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:42,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:42,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:42,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969675130] [2024-11-14 03:00:42,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:42,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:42,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:42,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:42,811 INFO L87 Difference]: Start difference. First operand 401 states and 496 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) [2024-11-14 03:00:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:43,904 INFO L93 Difference]: Finished difference Result 590 states and 714 transitions. [2024-11-14 03:00:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:00:43,904 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 [2024-11-14 03:00:43,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:43,907 INFO L225 Difference]: With dead ends: 590 [2024-11-14 03:00:43,907 INFO L226 Difference]: Without dead ends: 584 [2024-11-14 03:00:43,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:00:43,910 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 1328 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:43,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1175 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:00:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-14 03:00:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 401. [2024-11-14 03:00:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2857142857142858) internal successors, (495), 400 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 495 transitions. [2024-11-14 03:00:43,929 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 495 transitions. Word has length 78 [2024-11-14 03:00:43,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:43,929 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 495 transitions. [2024-11-14 03:00:43,929 INFO L472 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) [2024-11-14 03:00:43,929 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 495 transitions. [2024-11-14 03:00:43,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:00:43,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:43,931 INFO L215 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] [2024-11-14 03:00:43,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:00:43,931 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:43,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1675317728, now seen corresponding path program 1 times [2024-11-14 03:00:43,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:43,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734846901] [2024-11-14 03:00:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:43,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:44,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:44,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734846901] [2024-11-14 03:00:44,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734846901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:44,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:44,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:44,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401852396] [2024-11-14 03:00:44,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:44,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:44,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:44,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:44,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:44,480 INFO L87 Difference]: Start difference. First operand 401 states and 495 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) [2024-11-14 03:00:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:45,588 INFO L93 Difference]: Finished difference Result 728 states and 905 transitions. [2024-11-14 03:00:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:00:45,589 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 [2024-11-14 03:00:45,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:45,591 INFO L225 Difference]: With dead ends: 728 [2024-11-14 03:00:45,592 INFO L226 Difference]: Without dead ends: 612 [2024-11-14 03:00:45,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:00:45,595 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 1041 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:45,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1823 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:00:45,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-14 03:00:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 401. [2024-11-14 03:00:45,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.283116883116883) internal successors, (494), 400 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 494 transitions. [2024-11-14 03:00:45,611 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 494 transitions. Word has length 78 [2024-11-14 03:00:45,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:45,611 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 494 transitions. [2024-11-14 03:00:45,611 INFO L472 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) [2024-11-14 03:00:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 494 transitions. [2024-11-14 03:00:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:00:45,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:45,613 INFO L215 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, 1] [2024-11-14 03:00:45,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:00:45,613 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:45,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:45,614 INFO L85 PathProgramCache]: Analyzing trace with hash 635131159, now seen corresponding path program 1 times [2024-11-14 03:00:45,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:45,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581469418] [2024-11-14 03:00:45,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:45,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:46,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581469418] [2024-11-14 03:00:46,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581469418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:46,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:46,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:46,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453764077] [2024-11-14 03:00:46,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:46,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:46,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:46,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:46,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:46,164 INFO L87 Difference]: Start difference. First operand 401 states and 494 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:47,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:47,350 INFO L93 Difference]: Finished difference Result 681 states and 844 transitions. [2024-11-14 03:00:47,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:00:47,351 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-14 03:00:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:47,353 INFO L225 Difference]: With dead ends: 681 [2024-11-14 03:00:47,353 INFO L226 Difference]: Without dead ends: 608 [2024-11-14 03:00:47,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:00:47,355 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 1783 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:47,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 1529 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:00:47,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-14 03:00:47,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 401. [2024-11-14 03:00:47,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2805194805194806) internal successors, (493), 400 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 493 transitions. [2024-11-14 03:00:47,366 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 493 transitions. Word has length 79 [2024-11-14 03:00:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:47,366 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 493 transitions. [2024-11-14 03:00:47,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 493 transitions. [2024-11-14 03:00:47,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:00:47,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:47,368 INFO L215 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, 1] [2024-11-14 03:00:47,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:00:47,368 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:47,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:47,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1605144151, now seen corresponding path program 1 times [2024-11-14 03:00:47,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:47,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569430333] [2024-11-14 03:00:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:47,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:47,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:47,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569430333] [2024-11-14 03:00:47,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569430333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:47,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:47,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:47,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131511455] [2024-11-14 03:00:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:47,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:47,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:47,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:47,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:47,801 INFO L87 Difference]: Start difference. First operand 401 states and 493 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:48,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:48,724 INFO L93 Difference]: Finished difference Result 654 states and 803 transitions. [2024-11-14 03:00:48,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:00:48,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-14 03:00:48,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:48,726 INFO L225 Difference]: With dead ends: 654 [2024-11-14 03:00:48,726 INFO L226 Difference]: Without dead ends: 600 [2024-11-14 03:00:48,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:00:48,727 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 1047 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:48,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1660 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:00:48,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-14 03:00:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 401. [2024-11-14 03:00:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.277922077922078) internal successors, (492), 400 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 492 transitions. [2024-11-14 03:00:48,737 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 492 transitions. Word has length 79 [2024-11-14 03:00:48,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:48,737 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 492 transitions. [2024-11-14 03:00:48,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:48,738 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 492 transitions. [2024-11-14 03:00:48,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:00:48,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:48,739 INFO L215 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, 1, 1] [2024-11-14 03:00:48,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:00:48,739 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:48,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1798687067, now seen corresponding path program 1 times [2024-11-14 03:00:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:48,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703015513] [2024-11-14 03:00:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:49,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:49,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703015513] [2024-11-14 03:00:49,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703015513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:49,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:49,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:00:49,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48589566] [2024-11-14 03:00:49,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:49,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:00:49,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:49,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:00:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:00:49,247 INFO L87 Difference]: Start difference. First operand 401 states and 492 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:50,611 INFO L93 Difference]: Finished difference Result 681 states and 832 transitions. [2024-11-14 03:00:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:00:50,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-14 03:00:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:50,614 INFO L225 Difference]: With dead ends: 681 [2024-11-14 03:00:50,614 INFO L226 Difference]: Without dead ends: 618 [2024-11-14 03:00:50,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:00:50,616 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 2440 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:50,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 1634 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:00:50,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-14 03:00:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 409. [2024-11-14 03:00:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.2798982188295165) internal successors, (503), 408 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 503 transitions. [2024-11-14 03:00:50,628 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 503 transitions. Word has length 80 [2024-11-14 03:00:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:50,629 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 503 transitions. [2024-11-14 03:00:50,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 503 transitions. [2024-11-14 03:00:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:00:50,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:50,631 INFO L215 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, 1, 1] [2024-11-14 03:00:50,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:00:50,631 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:50,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1026547749, now seen corresponding path program 1 times [2024-11-14 03:00:50,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:50,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396121115] [2024-11-14 03:00:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:51,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:51,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396121115] [2024-11-14 03:00:51,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396121115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:51,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:51,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:00:51,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434694871] [2024-11-14 03:00:51,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:51,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:00:51,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:51,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:00:51,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:00:51,104 INFO L87 Difference]: Start difference. First operand 409 states and 503 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:52,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:52,397 INFO L93 Difference]: Finished difference Result 706 states and 870 transitions. [2024-11-14 03:00:52,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:00:52,397 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-14 03:00:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:52,399 INFO L225 Difference]: With dead ends: 706 [2024-11-14 03:00:52,400 INFO L226 Difference]: Without dead ends: 618 [2024-11-14 03:00:52,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:00:52,401 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1191 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:52,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 2061 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:00:52,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-14 03:00:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 409. [2024-11-14 03:00:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.27735368956743) internal successors, (502), 408 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 502 transitions. [2024-11-14 03:00:52,414 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 502 transitions. Word has length 80 [2024-11-14 03:00:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:52,414 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 502 transitions. [2024-11-14 03:00:52,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 502 transitions. [2024-11-14 03:00:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:00:52,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:52,416 INFO L215 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, 1, 1] [2024-11-14 03:00:52,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:00:52,416 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:52,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:52,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1772365797, now seen corresponding path program 1 times [2024-11-14 03:00:52,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:52,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907185089] [2024-11-14 03:00:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:52,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:52,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:52,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907185089] [2024-11-14 03:00:52,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907185089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:52,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:52,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:52,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074222557] [2024-11-14 03:00:52,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:52,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:52,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:52,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:52,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:52,946 INFO L87 Difference]: Start difference. First operand 409 states and 502 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:53,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:53,871 INFO L93 Difference]: Finished difference Result 698 states and 860 transitions. [2024-11-14 03:00:53,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:00:53,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-14 03:00:53,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:53,874 INFO L225 Difference]: With dead ends: 698 [2024-11-14 03:00:53,874 INFO L226 Difference]: Without dead ends: 616 [2024-11-14 03:00:53,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:00:53,875 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1732 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:53,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 1559 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:00:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-14 03:00:53,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 409. [2024-11-14 03:00:53,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.2748091603053435) internal successors, (501), 408 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 501 transitions. [2024-11-14 03:00:53,886 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 501 transitions. Word has length 80 [2024-11-14 03:00:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:53,886 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 501 transitions. [2024-11-14 03:00:53,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 501 transitions. [2024-11-14 03:00:53,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:00:53,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:53,887 INFO L215 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, 1, 1] [2024-11-14 03:00:53,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:00:53,888 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:53,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:53,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1109843867, now seen corresponding path program 1 times [2024-11-14 03:00:53,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:53,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000227707] [2024-11-14 03:00:53,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:53,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:54,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:54,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000227707] [2024-11-14 03:00:54,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000227707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:54,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:54,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:54,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599822679] [2024-11-14 03:00:54,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:54,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:54,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:54,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:54,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:54,255 INFO L87 Difference]: Start difference. First operand 409 states and 501 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:55,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:55,255 INFO L93 Difference]: Finished difference Result 666 states and 814 transitions. [2024-11-14 03:00:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:00:55,256 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-14 03:00:55,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:55,258 INFO L225 Difference]: With dead ends: 666 [2024-11-14 03:00:55,258 INFO L226 Difference]: Without dead ends: 608 [2024-11-14 03:00:55,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:00:55,259 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1511 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:55,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1935 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:00:55,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-14 03:00:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 409. [2024-11-14 03:00:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.272264631043257) internal successors, (500), 408 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 500 transitions. [2024-11-14 03:00:55,268 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 500 transitions. Word has length 80 [2024-11-14 03:00:55,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:55,268 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 500 transitions. [2024-11-14 03:00:55,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 500 transitions. [2024-11-14 03:00:55,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:00:55,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:55,270 INFO L215 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, 1, 1] [2024-11-14 03:00:55,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:00:55,270 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:55,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:55,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1167764005, now seen corresponding path program 1 times [2024-11-14 03:00:55,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:55,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025191561] [2024-11-14 03:00:55,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:55,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:55,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:55,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:55,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025191561] [2024-11-14 03:00:55,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025191561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:55,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:55,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:55,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19603293] [2024-11-14 03:00:55,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:55,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:55,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:55,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:55,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:55,557 INFO L87 Difference]: Start difference. First operand 409 states and 500 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:56,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:56,471 INFO L93 Difference]: Finished difference Result 642 states and 775 transitions. [2024-11-14 03:00:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:00:56,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-14 03:00:56,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:56,474 INFO L225 Difference]: With dead ends: 642 [2024-11-14 03:00:56,474 INFO L226 Difference]: Without dead ends: 592 [2024-11-14 03:00:56,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:00:56,475 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 1867 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:56,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 1300 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:00:56,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-14 03:00:56,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 409. [2024-11-14 03:00:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.2697201017811706) internal successors, (499), 408 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:56,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 499 transitions. [2024-11-14 03:00:56,485 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 499 transitions. Word has length 80 [2024-11-14 03:00:56,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:56,485 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 499 transitions. [2024-11-14 03:00:56,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 499 transitions. [2024-11-14 03:00:56,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:00:56,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:56,486 INFO L215 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, 1, 1] [2024-11-14 03:00:56,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 03:00:56,488 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:56,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:56,489 INFO L85 PathProgramCache]: Analyzing trace with hash 845800069, now seen corresponding path program 1 times [2024-11-14 03:00:56,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:56,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820833553] [2024-11-14 03:00:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:56,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:57,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:57,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:57,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820833553] [2024-11-14 03:00:57,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820833553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:57,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:57,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:00:57,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419196658] [2024-11-14 03:00:57,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:57,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:00:57,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:00:57,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:00:57,065 INFO L87 Difference]: Start difference. First operand 409 states and 499 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:58,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:58,596 INFO L93 Difference]: Finished difference Result 839 states and 1043 transitions. [2024-11-14 03:00:58,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 03:00:58,597 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-14 03:00:58,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:58,600 INFO L225 Difference]: With dead ends: 839 [2024-11-14 03:00:58,600 INFO L226 Difference]: Without dead ends: 757 [2024-11-14 03:00:58,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:00:58,601 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 3490 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3490 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:58,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3490 Valid, 1587 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:00:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-14 03:00:58,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 414. [2024-11-14 03:00:58,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 398 states have (on average 1.2663316582914572) internal successors, (504), 413 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:58,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 504 transitions. [2024-11-14 03:00:58,613 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 504 transitions. Word has length 80 [2024-11-14 03:00:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:58,613 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 504 transitions. [2024-11-14 03:00:58,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 504 transitions. [2024-11-14 03:00:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:00:58,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:58,615 INFO L215 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, 1, 1] [2024-11-14 03:00:58,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 03:00:58,615 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:00:58,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:58,615 INFO L85 PathProgramCache]: Analyzing trace with hash 436282523, now seen corresponding path program 1 times [2024-11-14 03:00:58,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:58,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276135353] [2024-11-14 03:00:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:58,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:58,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276135353] [2024-11-14 03:00:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276135353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:58,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:58,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:00:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778230614] [2024-11-14 03:00:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:58,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:00:58,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:58,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:00:58,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:00:58,971 INFO L87 Difference]: Start difference. First operand 414 states and 504 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:59,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:59,986 INFO L93 Difference]: Finished difference Result 641 states and 772 transitions. [2024-11-14 03:00:59,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:00:59,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-14 03:00:59,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:59,989 INFO L225 Difference]: With dead ends: 641 [2024-11-14 03:00:59,989 INFO L226 Difference]: Without dead ends: 596 [2024-11-14 03:00:59,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:00:59,990 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 1563 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:59,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1587 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:00:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-14 03:00:59,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 413. [2024-11-14 03:00:59,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 397 states have (on average 1.2644836272040303) internal successors, (502), 412 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:00,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 502 transitions. [2024-11-14 03:01:00,000 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 502 transitions. Word has length 80 [2024-11-14 03:01:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:00,000 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 502 transitions. [2024-11-14 03:01:00,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 502 transitions. [2024-11-14 03:01:00,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:00,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:00,002 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:00,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 03:01:00,002 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:00,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash -435146030, now seen corresponding path program 1 times [2024-11-14 03:01:00,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:00,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905430079] [2024-11-14 03:01:00,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:00,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:00,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:00,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905430079] [2024-11-14 03:01:00,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905430079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:00,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:00,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:00,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029223672] [2024-11-14 03:01:00,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:00,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:00,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:00,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:00,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:00,309 INFO L87 Difference]: Start difference. First operand 413 states and 502 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:01,259 INFO L93 Difference]: Finished difference Result 747 states and 910 transitions. [2024-11-14 03:01:01,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:01:01,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:01,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:01,263 INFO L225 Difference]: With dead ends: 747 [2024-11-14 03:01:01,263 INFO L226 Difference]: Without dead ends: 616 [2024-11-14 03:01:01,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:01,264 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 996 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:01,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 2119 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:01:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-14 03:01:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 405. [2024-11-14 03:01:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.262210796915167) internal successors, (491), 404 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2024-11-14 03:01:01,272 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 81 [2024-11-14 03:01:01,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:01,272 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2024-11-14 03:01:01,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2024-11-14 03:01:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:01,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:01,274 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:01,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 03:01:01,274 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:01,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:01,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1402771346, now seen corresponding path program 1 times [2024-11-14 03:01:01,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:01,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825391206] [2024-11-14 03:01:01,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:01,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:01,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:01,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825391206] [2024-11-14 03:01:01,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825391206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:01,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:01,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:01,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147438940] [2024-11-14 03:01:01,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:01,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:01,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:01,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:01,609 INFO L87 Difference]: Start difference. First operand 405 states and 491 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:02,440 INFO L93 Difference]: Finished difference Result 635 states and 762 transitions. [2024-11-14 03:01:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:01:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:02,443 INFO L225 Difference]: With dead ends: 635 [2024-11-14 03:01:02,443 INFO L226 Difference]: Without dead ends: 588 [2024-11-14 03:01:02,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:02,444 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1556 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:02,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 1528 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:02,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-14 03:01:02,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 405. [2024-11-14 03:01:02,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2596401028277635) internal successors, (490), 404 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:02,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 490 transitions. [2024-11-14 03:01:02,453 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 490 transitions. Word has length 81 [2024-11-14 03:01:02,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:02,453 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 490 transitions. [2024-11-14 03:01:02,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:02,454 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 490 transitions. [2024-11-14 03:01:02,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:02,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:02,455 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:02,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 03:01:02,455 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:02,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash -737160558, now seen corresponding path program 1 times [2024-11-14 03:01:02,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:02,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385040290] [2024-11-14 03:01:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:02,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:02,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:02,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:02,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385040290] [2024-11-14 03:01:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385040290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:02,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:02,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:02,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467690022] [2024-11-14 03:01:02,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:02,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:02,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:02,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:02,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:02,829 INFO L87 Difference]: Start difference. First operand 405 states and 490 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:03,667 INFO L93 Difference]: Finished difference Result 635 states and 761 transitions. [2024-11-14 03:01:03,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:01:03,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:03,669 INFO L225 Difference]: With dead ends: 635 [2024-11-14 03:01:03,669 INFO L226 Difference]: Without dead ends: 588 [2024-11-14 03:01:03,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:03,670 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1553 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:03,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 1524 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:03,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-14 03:01:03,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 405. [2024-11-14 03:01:03,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.25706940874036) internal successors, (489), 404 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:03,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 489 transitions. [2024-11-14 03:01:03,680 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 489 transitions. Word has length 81 [2024-11-14 03:01:03,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:03,680 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 489 transitions. [2024-11-14 03:01:03,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 489 transitions. [2024-11-14 03:01:03,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:03,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:03,681 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:03,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 03:01:03,682 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:03,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:03,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1441173234, now seen corresponding path program 1 times [2024-11-14 03:01:03,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:03,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255835814] [2024-11-14 03:01:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:03,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:03,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:03,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255835814] [2024-11-14 03:01:03,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255835814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:03,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:03,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:03,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9035441] [2024-11-14 03:01:03,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:03,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:03,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:03,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:03,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:03,975 INFO L87 Difference]: Start difference. First operand 405 states and 489 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:04,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:04,825 INFO L93 Difference]: Finished difference Result 662 states and 802 transitions. [2024-11-14 03:01:04,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:01:04,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:04,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:04,831 INFO L225 Difference]: With dead ends: 662 [2024-11-14 03:01:04,831 INFO L226 Difference]: Without dead ends: 604 [2024-11-14 03:01:04,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:01:04,835 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 1161 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:04,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1467 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-14 03:01:04,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 405. [2024-11-14 03:01:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2544987146529563) internal successors, (488), 404 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:04,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 488 transitions. [2024-11-14 03:01:04,843 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 488 transitions. Word has length 81 [2024-11-14 03:01:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:04,843 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 488 transitions. [2024-11-14 03:01:04,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:04,843 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 488 transitions. [2024-11-14 03:01:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:04,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:04,845 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:04,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 03:01:04,845 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:04,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:04,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1997711831, now seen corresponding path program 1 times [2024-11-14 03:01:04,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:04,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527443968] [2024-11-14 03:01:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:04,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:05,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:05,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527443968] [2024-11-14 03:01:05,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527443968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:05,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:05,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:05,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950853320] [2024-11-14 03:01:05,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:05,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:05,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:05,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:05,262 INFO L87 Difference]: Start difference. First operand 405 states and 488 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:06,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:06,073 INFO L93 Difference]: Finished difference Result 689 states and 839 transitions. [2024-11-14 03:01:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:01:06,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:06,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:06,076 INFO L225 Difference]: With dead ends: 689 [2024-11-14 03:01:06,076 INFO L226 Difference]: Without dead ends: 607 [2024-11-14 03:01:06,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:01:06,077 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 1028 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:06,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1789 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:01:06,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-14 03:01:06,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 400. [2024-11-14 03:01:06,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2552083333333333) internal successors, (482), 399 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 482 transitions. [2024-11-14 03:01:06,084 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 482 transitions. Word has length 81 [2024-11-14 03:01:06,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:06,085 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 482 transitions. [2024-11-14 03:01:06,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 482 transitions. [2024-11-14 03:01:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:06,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:06,086 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:06,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 03:01:06,087 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:06,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1762485042, now seen corresponding path program 1 times [2024-11-14 03:01:06,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:06,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042170590] [2024-11-14 03:01:06,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:06,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:06,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:06,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042170590] [2024-11-14 03:01:06,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042170590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:06,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:06,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:06,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385747070] [2024-11-14 03:01:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:06,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:06,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:06,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:06,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:06,376 INFO L87 Difference]: Start difference. First operand 400 states and 482 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:07,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:07,034 INFO L93 Difference]: Finished difference Result 630 states and 753 transitions. [2024-11-14 03:01:07,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:01:07,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:07,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:07,036 INFO L225 Difference]: With dead ends: 630 [2024-11-14 03:01:07,036 INFO L226 Difference]: Without dead ends: 583 [2024-11-14 03:01:07,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:07,037 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 1509 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:07,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1305 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:01:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-14 03:01:07,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 400. [2024-11-14 03:01:07,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2526041666666667) internal successors, (481), 399 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:07,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 481 transitions. [2024-11-14 03:01:07,045 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 481 transitions. Word has length 81 [2024-11-14 03:01:07,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:07,046 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 481 transitions. [2024-11-14 03:01:07,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:07,046 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 481 transitions. [2024-11-14 03:01:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:07,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:07,047 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:07,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 03:01:07,047 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:07,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:07,048 INFO L85 PathProgramCache]: Analyzing trace with hash 902080530, now seen corresponding path program 1 times [2024-11-14 03:01:07,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:07,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088670420] [2024-11-14 03:01:07,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:07,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:07,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:07,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088670420] [2024-11-14 03:01:07,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088670420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:07,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:07,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:07,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755893229] [2024-11-14 03:01:07,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:07,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:07,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:07,337 INFO L87 Difference]: Start difference. First operand 400 states and 481 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:08,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:08,148 INFO L93 Difference]: Finished difference Result 657 states and 792 transitions. [2024-11-14 03:01:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:01:08,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:08,151 INFO L225 Difference]: With dead ends: 657 [2024-11-14 03:01:08,151 INFO L226 Difference]: Without dead ends: 599 [2024-11-14 03:01:08,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:08,153 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1014 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:08,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 1893 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-14 03:01:08,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 400. [2024-11-14 03:01:08,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.25) internal successors, (480), 399 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:08,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 480 transitions. [2024-11-14 03:01:08,169 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 480 transitions. Word has length 81 [2024-11-14 03:01:08,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:08,169 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 480 transitions. [2024-11-14 03:01:08,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 480 transitions. [2024-11-14 03:01:08,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:08,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:08,172 INFO L215 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, 1, 1, 1] [2024-11-14 03:01:08,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-14 03:01:08,175 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:08,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash -818292174, now seen corresponding path program 1 times [2024-11-14 03:01:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:08,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096203351] [2024-11-14 03:01:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:08,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:08,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:08,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096203351] [2024-11-14 03:01:08,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096203351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:08,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:08,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:08,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750763811] [2024-11-14 03:01:08,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:08,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:08,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:08,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:08,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:08,574 INFO L87 Difference]: Start difference. First operand 400 states and 480 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:09,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:09,359 INFO L93 Difference]: Finished difference Result 630 states and 751 transitions. [2024-11-14 03:01:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:01:09,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-14 03:01:09,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:09,361 INFO L225 Difference]: With dead ends: 630 [2024-11-14 03:01:09,361 INFO L226 Difference]: Without dead ends: 583 [2024-11-14 03:01:09,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:01:09,361 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1811 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:09,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 1311 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:01:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-14 03:01:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 400. [2024-11-14 03:01:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 399 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 479 transitions. [2024-11-14 03:01:09,367 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 479 transitions. Word has length 81 [2024-11-14 03:01:09,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:09,367 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 479 transitions. [2024-11-14 03:01:09,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:09,367 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 479 transitions. [2024-11-14 03:01:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:09,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:09,368 INFO L215 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, 1, 1, 1, 1] [2024-11-14 03:01:09,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-14 03:01:09,369 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:09,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:09,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1416899414, now seen corresponding path program 1 times [2024-11-14 03:01:09,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:09,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599943678] [2024-11-14 03:01:09,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:09,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:09,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:09,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599943678] [2024-11-14 03:01:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599943678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:09,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:09,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:09,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506545977] [2024-11-14 03:01:09,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:09,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:09,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:09,712 INFO L87 Difference]: Start difference. First operand 400 states and 479 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:10,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:10,475 INFO L93 Difference]: Finished difference Result 589 states and 694 transitions. [2024-11-14 03:01:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:01:10,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 03:01:10,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:10,477 INFO L225 Difference]: With dead ends: 589 [2024-11-14 03:01:10,478 INFO L226 Difference]: Without dead ends: 583 [2024-11-14 03:01:10,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:10,478 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 1526 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:10,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1615 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:01:10,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-14 03:01:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 400. [2024-11-14 03:01:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2447916666666667) internal successors, (478), 399 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 478 transitions. [2024-11-14 03:01:10,484 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 478 transitions. Word has length 82 [2024-11-14 03:01:10,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:10,485 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 478 transitions. [2024-11-14 03:01:10,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 478 transitions. [2024-11-14 03:01:10,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:10,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:10,486 INFO L215 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, 1, 1, 1, 1] [2024-11-14 03:01:10,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-14 03:01:10,486 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:10,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:10,487 INFO L85 PathProgramCache]: Analyzing trace with hash 110550506, now seen corresponding path program 1 times [2024-11-14 03:01:10,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:10,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209868071] [2024-11-14 03:01:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:10,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:10,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:10,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209868071] [2024-11-14 03:01:10,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209868071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:10,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:10,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:10,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961317784] [2024-11-14 03:01:10,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:10,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:10,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:10,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:10,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:10,781 INFO L87 Difference]: Start difference. First operand 400 states and 478 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:11,686 INFO L93 Difference]: Finished difference Result 618 states and 735 transitions. [2024-11-14 03:01:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:01:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 03:01:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:11,687 INFO L225 Difference]: With dead ends: 618 [2024-11-14 03:01:11,687 INFO L226 Difference]: Without dead ends: 599 [2024-11-14 03:01:11,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:01:11,688 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 1650 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:11,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 1571 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-14 03:01:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 400. [2024-11-14 03:01:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2421875) internal successors, (477), 399 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 477 transitions. [2024-11-14 03:01:11,695 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 477 transitions. Word has length 82 [2024-11-14 03:01:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:11,695 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 477 transitions. [2024-11-14 03:01:11,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 477 transitions. [2024-11-14 03:01:11,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:11,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:11,696 INFO L215 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, 1, 1, 1, 1] [2024-11-14 03:01:11,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 03:01:11,696 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:11,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash -534325398, now seen corresponding path program 1 times [2024-11-14 03:01:11,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:11,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691779436] [2024-11-14 03:01:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:12,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:12,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691779436] [2024-11-14 03:01:12,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691779436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:12,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:12,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:01:12,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228104359] [2024-11-14 03:01:12,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:12,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:01:12,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:12,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:01:12,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:01:12,162 INFO L87 Difference]: Start difference. First operand 400 states and 477 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:13,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:13,297 INFO L93 Difference]: Finished difference Result 706 states and 845 transitions. [2024-11-14 03:01:13,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 03:01:13,297 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 03:01:13,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:13,299 INFO L225 Difference]: With dead ends: 706 [2024-11-14 03:01:13,299 INFO L226 Difference]: Without dead ends: 700 [2024-11-14 03:01:13,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:01:13,299 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 3351 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:13,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3351 Valid, 1440 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:01:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-14 03:01:13,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 405. [2024-11-14 03:01:13,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2390745501285347) internal successors, (482), 404 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:13,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 482 transitions. [2024-11-14 03:01:13,306 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 482 transitions. Word has length 82 [2024-11-14 03:01:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:13,306 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 482 transitions. [2024-11-14 03:01:13,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:13,307 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 482 transitions. [2024-11-14 03:01:13,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:13,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:13,308 INFO L215 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, 1, 1, 1, 1] [2024-11-14 03:01:13,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-14 03:01:13,308 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:13,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:13,308 INFO L85 PathProgramCache]: Analyzing trace with hash 148568362, now seen corresponding path program 1 times [2024-11-14 03:01:13,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:13,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794525999] [2024-11-14 03:01:13,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:13,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:13,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794525999] [2024-11-14 03:01:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794525999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:13,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:13,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:13,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561388586] [2024-11-14 03:01:13,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:13,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:13,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:13,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:13,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:13,783 INFO L87 Difference]: Start difference. First operand 405 states and 482 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:14,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:14,525 INFO L93 Difference]: Finished difference Result 667 states and 796 transitions. [2024-11-14 03:01:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:01:14,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 03:01:14,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:14,527 INFO L225 Difference]: With dead ends: 667 [2024-11-14 03:01:14,527 INFO L226 Difference]: Without dead ends: 604 [2024-11-14 03:01:14,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:14,529 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 1465 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:14,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1927 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:01:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-14 03:01:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 405. [2024-11-14 03:01:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.236503856041131) internal successors, (481), 404 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:14,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 481 transitions. [2024-11-14 03:01:14,536 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 481 transitions. Word has length 82 [2024-11-14 03:01:14,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:14,537 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 481 transitions. [2024-11-14 03:01:14,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:14,537 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 481 transitions. [2024-11-14 03:01:14,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:14,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:14,538 INFO L215 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, 1, 1, 1, 1] [2024-11-14 03:01:14,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-14 03:01:14,539 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:14,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:14,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1321164118, now seen corresponding path program 1 times [2024-11-14 03:01:14,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:14,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303859363] [2024-11-14 03:01:14,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:14,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:14,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:14,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:14,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303859363] [2024-11-14 03:01:14,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303859363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:14,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:14,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:14,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441727092] [2024-11-14 03:01:14,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:14,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:14,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:14,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:14,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:14,799 INFO L87 Difference]: Start difference. First operand 405 states and 481 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:15,616 INFO L93 Difference]: Finished difference Result 700 states and 841 transitions. [2024-11-14 03:01:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:01:15,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 03:01:15,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:15,618 INFO L225 Difference]: With dead ends: 700 [2024-11-14 03:01:15,618 INFO L226 Difference]: Without dead ends: 612 [2024-11-14 03:01:15,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:15,619 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 1410 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:15,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 1900 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:15,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-14 03:01:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 405. [2024-11-14 03:01:15,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2339331619537275) internal successors, (480), 404 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 480 transitions. [2024-11-14 03:01:15,624 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 480 transitions. Word has length 82 [2024-11-14 03:01:15,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:15,625 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 480 transitions. [2024-11-14 03:01:15,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 480 transitions. [2024-11-14 03:01:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:15,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:15,626 INFO L215 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, 1, 1, 1, 1] [2024-11-14 03:01:15,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-14 03:01:15,626 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:15,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:15,626 INFO L85 PathProgramCache]: Analyzing trace with hash -378154710, now seen corresponding path program 1 times [2024-11-14 03:01:15,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:15,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785830726] [2024-11-14 03:01:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:15,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:15,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:15,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:15,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785830726] [2024-11-14 03:01:15,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785830726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:15,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:15,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:15,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160161447] [2024-11-14 03:01:15,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:15,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:15,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:15,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:15,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:15,857 INFO L87 Difference]: Start difference. First operand 405 states and 480 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:16,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:16,682 INFO L93 Difference]: Finished difference Result 633 states and 747 transitions. [2024-11-14 03:01:16,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:01:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 03:01:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:16,685 INFO L225 Difference]: With dead ends: 633 [2024-11-14 03:01:16,685 INFO L226 Difference]: Without dead ends: 583 [2024-11-14 03:01:16,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:01:16,686 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 1715 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:16,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 1424 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-14 03:01:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 405. [2024-11-14 03:01:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.231362467866324) internal successors, (479), 404 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 479 transitions. [2024-11-14 03:01:16,697 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 479 transitions. Word has length 82 [2024-11-14 03:01:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:16,699 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 479 transitions. [2024-11-14 03:01:16,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 479 transitions. [2024-11-14 03:01:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:16,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:16,700 INFO L215 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, 1, 1, 1, 1] [2024-11-14 03:01:16,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 03:01:16,701 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:16,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash 637597674, now seen corresponding path program 1 times [2024-11-14 03:01:16,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:16,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574518237] [2024-11-14 03:01:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:16,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:17,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:17,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574518237] [2024-11-14 03:01:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574518237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:17,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:17,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:01:17,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627396238] [2024-11-14 03:01:17,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:17,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:01:17,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:17,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:01:17,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:01:17,153 INFO L87 Difference]: Start difference. First operand 405 states and 479 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:18,413 INFO L93 Difference]: Finished difference Result 796 states and 961 transitions. [2024-11-14 03:01:18,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 03:01:18,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-14 03:01:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:18,414 INFO L225 Difference]: With dead ends: 796 [2024-11-14 03:01:18,415 INFO L226 Difference]: Without dead ends: 733 [2024-11-14 03:01:18,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:01:18,415 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 2932 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:18,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2932 Valid, 1788 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:01:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-14 03:01:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 410. [2024-11-14 03:01:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 394 states have (on average 1.2284263959390862) internal successors, (484), 409 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 484 transitions. [2024-11-14 03:01:18,422 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 484 transitions. Word has length 82 [2024-11-14 03:01:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:18,422 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 484 transitions. [2024-11-14 03:01:18,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 484 transitions. [2024-11-14 03:01:18,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:01:18,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:18,423 INFO L215 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, 1, 1, 1, 1, 1] [2024-11-14 03:01:18,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 03:01:18,424 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:18,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:18,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1377145907, now seen corresponding path program 1 times [2024-11-14 03:01:18,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:18,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701273276] [2024-11-14 03:01:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:18,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:20,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:20,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701273276] [2024-11-14 03:01:20,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701273276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:20,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:20,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-14 03:01:20,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767285585] [2024-11-14 03:01:20,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:20,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:01:20,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:20,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:01:20,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:01:20,009 INFO L87 Difference]: Start difference. First operand 410 states and 484 transitions. Second operand has 20 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:23,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:23,534 INFO L93 Difference]: Finished difference Result 1065 states and 1247 transitions. [2024-11-14 03:01:23,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 03:01:23,534 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-14 03:01:23,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:23,537 INFO L225 Difference]: With dead ends: 1065 [2024-11-14 03:01:23,537 INFO L226 Difference]: Without dead ends: 950 [2024-11-14 03:01:23,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=280, Invalid=1126, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:01:23,539 INFO L432 NwaCegarLoop]: 768 mSDtfsCounter, 2758 mSDsluCounter, 7387 mSDsCounter, 0 mSdLazyCounter, 2751 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2758 SdHoareTripleChecker+Valid, 8155 SdHoareTripleChecker+Invalid, 2757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:23,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2758 Valid, 8155 Invalid, 2757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2751 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:01:23,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-14 03:01:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 421. [2024-11-14 03:01:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 405 states have (on average 1.2271604938271605) internal successors, (497), 420 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 497 transitions. [2024-11-14 03:01:23,546 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 497 transitions. Word has length 83 [2024-11-14 03:01:23,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:23,546 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 497 transitions. [2024-11-14 03:01:23,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:23,547 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 497 transitions. [2024-11-14 03:01:23,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:01:23,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:23,547 INFO L215 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, 1, 1, 1, 1, 1] [2024-11-14 03:01:23,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-14 03:01:23,548 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:23,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash -199769875, now seen corresponding path program 1 times [2024-11-14 03:01:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:23,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091156062] [2024-11-14 03:01:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:23,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:26,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:26,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:26,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091156062] [2024-11-14 03:01:26,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091156062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:26,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:26,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2024-11-14 03:01:26,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944073299] [2024-11-14 03:01:26,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:26,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-14 03:01:26,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:26,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-14 03:01:26,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:01:26,178 INFO L87 Difference]: Start difference. First operand 421 states and 497 transitions. Second operand has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:33,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:33,280 INFO L93 Difference]: Finished difference Result 1253 states and 1471 transitions. [2024-11-14 03:01:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-14 03:01:33,280 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-14 03:01:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:33,286 INFO L225 Difference]: With dead ends: 1253 [2024-11-14 03:01:33,286 INFO L226 Difference]: Without dead ends: 1208 [2024-11-14 03:01:33,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=434, Invalid=2536, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 03:01:33,288 INFO L432 NwaCegarLoop]: 984 mSDtfsCounter, 4522 mSDsluCounter, 14296 mSDsCounter, 0 mSdLazyCounter, 7536 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 15280 SdHoareTripleChecker+Invalid, 7540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:33,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 15280 Invalid, 7540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 7536 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-14 03:01:33,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2024-11-14 03:01:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 436. [2024-11-14 03:01:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 420 states have (on average 1.230952380952381) internal successors, (517), 435 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 517 transitions. [2024-11-14 03:01:33,296 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 517 transitions. Word has length 83 [2024-11-14 03:01:33,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:33,296 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 517 transitions. [2024-11-14 03:01:33,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 517 transitions. [2024-11-14 03:01:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:01:33,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:33,297 INFO L215 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, 1, 1, 1, 1, 1] [2024-11-14 03:01:33,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-14 03:01:33,297 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:33,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1097921229, now seen corresponding path program 1 times [2024-11-14 03:01:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115742165] [2024-11-14 03:01:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:33,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:33,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115742165] [2024-11-14 03:01:33,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115742165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:33,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:33,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:01:33,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133375073] [2024-11-14 03:01:33,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:33,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:01:33,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:33,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:01:33,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:01:33,799 INFO L87 Difference]: Start difference. First operand 436 states and 517 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:34,418 INFO L93 Difference]: Finished difference Result 848 states and 991 transitions. [2024-11-14 03:01:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:01:34,419 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-14 03:01:34,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:34,421 INFO L225 Difference]: With dead ends: 848 [2024-11-14 03:01:34,421 INFO L226 Difference]: Without dead ends: 667 [2024-11-14 03:01:34,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:01:34,422 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1557 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:34,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 2468 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:01:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-14 03:01:34,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 299. [2024-11-14 03:01:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 288 states have (on average 1.2118055555555556) internal successors, (349), 298 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 349 transitions. [2024-11-14 03:01:34,427 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 349 transitions. Word has length 83 [2024-11-14 03:01:34,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:34,427 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 349 transitions. [2024-11-14 03:01:34,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 349 transitions. [2024-11-14 03:01:34,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:01:34,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:34,428 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:34,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-14 03:01:34,429 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:34,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:34,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1381404559, now seen corresponding path program 1 times [2024-11-14 03:01:34,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597926264] [2024-11-14 03:01:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:34,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:34,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597926264] [2024-11-14 03:01:34,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597926264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:34,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:34,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:01:34,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391146936] [2024-11-14 03:01:34,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:34,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:01:34,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:34,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:01:34,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:34,910 INFO L87 Difference]: Start difference. First operand 299 states and 349 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:35,376 INFO L93 Difference]: Finished difference Result 459 states and 545 transitions. [2024-11-14 03:01:35,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:01:35,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-14 03:01:35,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:35,378 INFO L225 Difference]: With dead ends: 459 [2024-11-14 03:01:35,378 INFO L226 Difference]: Without dead ends: 403 [2024-11-14 03:01:35,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:01:35,379 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 983 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:35,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1686 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:35,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-14 03:01:35,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 287. [2024-11-14 03:01:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 277 states have (on average 1.2093862815884477) internal successors, (335), 286 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 335 transitions. [2024-11-14 03:01:35,382 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 335 transitions. Word has length 84 [2024-11-14 03:01:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:35,382 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 335 transitions. [2024-11-14 03:01:35,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 335 transitions. [2024-11-14 03:01:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:01:35,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:35,382 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:35,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-14 03:01:35,383 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:35,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash -142238409, now seen corresponding path program 1 times [2024-11-14 03:01:35,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:35,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180049612] [2024-11-14 03:01:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:35,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:35,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180049612] [2024-11-14 03:01:35,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180049612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:35,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:35,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:01:35,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930588245] [2024-11-14 03:01:35,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:35,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:01:35,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:01:35,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:35,954 INFO L87 Difference]: Start difference. First operand 287 states and 335 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:36,554 INFO L93 Difference]: Finished difference Result 427 states and 510 transitions. [2024-11-14 03:01:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:01:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-14 03:01:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:36,556 INFO L225 Difference]: With dead ends: 427 [2024-11-14 03:01:36,556 INFO L226 Difference]: Without dead ends: 339 [2024-11-14 03:01:36,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:01:36,556 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1196 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:36,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1994 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:36,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-14 03:01:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 236. [2024-11-14 03:01:36,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 229 states have (on average 1.1877729257641922) internal successors, (272), 235 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 272 transitions. [2024-11-14 03:01:36,560 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 272 transitions. Word has length 84 [2024-11-14 03:01:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:36,560 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 272 transitions. [2024-11-14 03:01:36,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 272 transitions. [2024-11-14 03:01:36,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:01:36,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:36,560 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:36,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-14 03:01:36,561 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:36,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2131684943, now seen corresponding path program 1 times [2024-11-14 03:01:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222260196] [2024-11-14 03:01:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:38,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:38,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:38,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222260196] [2024-11-14 03:01:38,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222260196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:38,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:38,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-14 03:01:38,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297779935] [2024-11-14 03:01:38,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:38,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 03:01:38,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:38,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 03:01:38,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:01:38,576 INFO L87 Difference]: Start difference. First operand 236 states and 272 transitions. Second operand has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 25 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:42,882 INFO L93 Difference]: Finished difference Result 701 states and 828 transitions. [2024-11-14 03:01:42,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 03:01:42,883 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 25 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-14 03:01:42,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:42,885 INFO L225 Difference]: With dead ends: 701 [2024-11-14 03:01:42,885 INFO L226 Difference]: Without dead ends: 653 [2024-11-14 03:01:42,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=302, Invalid=1678, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 03:01:42,886 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 2368 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 3285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2368 SdHoareTripleChecker+Valid, 6981 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:42,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2368 Valid, 6981 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3285 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-14 03:01:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-14 03:01:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 253. [2024-11-14 03:01:42,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 246 states have (on average 1.1991869918699187) internal successors, (295), 252 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 295 transitions. [2024-11-14 03:01:42,891 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 295 transitions. Word has length 84 [2024-11-14 03:01:42,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:42,892 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 295 transitions. [2024-11-14 03:01:42,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 25 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 295 transitions. [2024-11-14 03:01:42,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:01:42,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:42,893 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:42,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-14 03:01:42,893 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:42,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:42,893 INFO L85 PathProgramCache]: Analyzing trace with hash -101111601, now seen corresponding path program 1 times [2024-11-14 03:01:42,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:42,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336077874] [2024-11-14 03:01:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:42,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:43,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:43,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336077874] [2024-11-14 03:01:43,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336077874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:43,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:43,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:01:43,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357203536] [2024-11-14 03:01:43,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:43,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:01:43,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:01:43,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:43,329 INFO L87 Difference]: Start difference. First operand 253 states and 295 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:43,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:43,842 INFO L93 Difference]: Finished difference Result 393 states and 469 transitions. [2024-11-14 03:01:43,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:01:43,842 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-14 03:01:43,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:43,843 INFO L225 Difference]: With dead ends: 393 [2024-11-14 03:01:43,843 INFO L226 Difference]: Without dead ends: 282 [2024-11-14 03:01:43,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:01:43,844 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 840 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:43,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1773 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-14 03:01:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 185. [2024-11-14 03:01:43,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 181 states have (on average 1.1878453038674033) internal successors, (215), 184 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 215 transitions. [2024-11-14 03:01:43,846 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 215 transitions. Word has length 84 [2024-11-14 03:01:43,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:43,846 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 215 transitions. [2024-11-14 03:01:43,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 215 transitions. [2024-11-14 03:01:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:01:43,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:43,847 INFO L215 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:43,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-14 03:01:43,847 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:43,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:43,847 INFO L85 PathProgramCache]: Analyzing trace with hash -379806907, now seen corresponding path program 1 times [2024-11-14 03:01:43,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:43,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748409784] [2024-11-14 03:01:43,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:43,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:45,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:45,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748409784] [2024-11-14 03:01:45,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748409784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:45,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:45,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-14 03:01:45,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173911828] [2024-11-14 03:01:45,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:45,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 03:01:45,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 03:01:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:01:45,037 INFO L87 Difference]: Start difference. First operand 185 states and 215 transitions. Second operand has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 17 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:46,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:46,359 INFO L93 Difference]: Finished difference Result 517 states and 620 transitions. [2024-11-14 03:01:46,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:01:46,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 17 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-14 03:01:46,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:46,361 INFO L225 Difference]: With dead ends: 517 [2024-11-14 03:01:46,361 INFO L226 Difference]: Without dead ends: 469 [2024-11-14 03:01:46,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=782, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:01:46,362 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 1327 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:46,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2628 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:01:46,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-14 03:01:46,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 187. [2024-11-14 03:01:46,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 183 states have (on average 1.185792349726776) internal successors, (217), 186 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:46,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 217 transitions. [2024-11-14 03:01:46,364 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 217 transitions. Word has length 85 [2024-11-14 03:01:46,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:46,364 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 217 transitions. [2024-11-14 03:01:46,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 17 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 217 transitions. [2024-11-14 03:01:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:01:46,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:46,365 INFO L215 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:46,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-14 03:01:46,365 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:46,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:46,365 INFO L85 PathProgramCache]: Analyzing trace with hash 970950029, now seen corresponding path program 1 times [2024-11-14 03:01:46,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:46,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331315500] [2024-11-14 03:01:46,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:47,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:47,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331315500] [2024-11-14 03:01:47,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331315500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:47,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:47,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-14 03:01:47,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60174109] [2024-11-14 03:01:47,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:47,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:01:47,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:47,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:01:47,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:01:47,006 INFO L87 Difference]: Start difference. First operand 187 states and 217 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:47,850 INFO L93 Difference]: Finished difference Result 440 states and 534 transitions. [2024-11-14 03:01:47,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:01:47,850 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-14 03:01:47,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:47,852 INFO L225 Difference]: With dead ends: 440 [2024-11-14 03:01:47,852 INFO L226 Difference]: Without dead ends: 375 [2024-11-14 03:01:47,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:01:47,853 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 953 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:47,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1989 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:01:47,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-14 03:01:47,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 145. [2024-11-14 03:01:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.1538461538461537) internal successors, (165), 144 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 165 transitions. [2024-11-14 03:01:47,855 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 165 transitions. Word has length 85 [2024-11-14 03:01:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:47,855 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 165 transitions. [2024-11-14 03:01:47,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 165 transitions. [2024-11-14 03:01:47,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:01:47,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:47,856 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:47,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-14 03:01:47,856 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:47,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:47,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1517009585, now seen corresponding path program 1 times [2024-11-14 03:01:47,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:47,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267849426] [2024-11-14 03:01:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:47,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:48,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:48,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267849426] [2024-11-14 03:01:48,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267849426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:48,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:48,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:48,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271086162] [2024-11-14 03:01:48,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:48,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:48,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:48,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:48,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:48,053 INFO L87 Difference]: Start difference. First operand 145 states and 165 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:48,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:48,411 INFO L93 Difference]: Finished difference Result 283 states and 335 transitions. [2024-11-14 03:01:48,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:01:48,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-14 03:01:48,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:48,413 INFO L225 Difference]: With dead ends: 283 [2024-11-14 03:01:48,413 INFO L226 Difference]: Without dead ends: 219 [2024-11-14 03:01:48,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:01:48,414 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 495 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:48,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 565 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-14 03:01:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 145. [2024-11-14 03:01:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.1468531468531469) internal successors, (164), 144 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 164 transitions. [2024-11-14 03:01:48,419 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 164 transitions. Word has length 86 [2024-11-14 03:01:48,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:48,419 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 164 transitions. [2024-11-14 03:01:48,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:48,419 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 164 transitions. [2024-11-14 03:01:48,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:01:48,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:48,420 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:48,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-14 03:01:48,420 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:48,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:48,420 INFO L85 PathProgramCache]: Analyzing trace with hash 615115764, now seen corresponding path program 1 times [2024-11-14 03:01:48,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:48,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943841594] [2024-11-14 03:01:48,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:50,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:50,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943841594] [2024-11-14 03:01:50,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943841594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:50,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:50,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2024-11-14 03:01:50,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778009945] [2024-11-14 03:01:50,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:50,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 03:01:50,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:50,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 03:01:50,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:01:50,186 INFO L87 Difference]: Start difference. First operand 145 states and 164 transitions. Second operand has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 27 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:53,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:53,281 INFO L93 Difference]: Finished difference Result 526 states and 628 transitions. [2024-11-14 03:01:53,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 03:01:53,281 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 27 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-14 03:01:53,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:53,282 INFO L225 Difference]: With dead ends: 526 [2024-11-14 03:01:53,283 INFO L226 Difference]: Without dead ends: 520 [2024-11-14 03:01:53,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=396, Invalid=2054, Unknown=0, NotChecked=0, Total=2450 [2024-11-14 03:01:53,284 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 1608 mSDsluCounter, 5822 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:53,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 6239 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 03:01:53,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-14 03:01:53,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 170. [2024-11-14 03:01:53,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 168 states have (on average 1.1547619047619047) internal successors, (194), 169 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 194 transitions. [2024-11-14 03:01:53,288 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 194 transitions. Word has length 88 [2024-11-14 03:01:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:53,288 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 194 transitions. [2024-11-14 03:01:53,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 27 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 194 transitions. [2024-11-14 03:01:53,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:01:53,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:53,289 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:53,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-14 03:01:53,289 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash 634138090, now seen corresponding path program 1 times [2024-11-14 03:01:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:53,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406568739] [2024-11-14 03:01:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:53,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:54,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:54,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:54,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406568739] [2024-11-14 03:01:54,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406568739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:54,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:54,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-14 03:01:54,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613928439] [2024-11-14 03:01:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:54,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:01:54,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:54,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:01:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:01:54,214 INFO L87 Difference]: Start difference. First operand 170 states and 194 transitions. Second operand has 16 states, 16 states have (on average 5.5625) internal successors, (89), 15 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:55,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:55,274 INFO L93 Difference]: Finished difference Result 322 states and 381 transitions. [2024-11-14 03:01:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:01:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 15 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-14 03:01:55,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:55,276 INFO L225 Difference]: With dead ends: 322 [2024-11-14 03:01:55,276 INFO L226 Difference]: Without dead ends: 316 [2024-11-14 03:01:55,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:01:55,276 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 969 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:55,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1608 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:01:55,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-14 03:01:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 173. [2024-11-14 03:01:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 171 states have (on average 1.152046783625731) internal successors, (197), 172 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 197 transitions. [2024-11-14 03:01:55,279 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 197 transitions. Word has length 89 [2024-11-14 03:01:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:55,279 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 197 transitions. [2024-11-14 03:01:55,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 15 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 197 transitions. [2024-11-14 03:01:55,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:01:55,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:55,280 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:55,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-14 03:01:55,280 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:55,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:55,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1254143026, now seen corresponding path program 1 times [2024-11-14 03:01:55,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:55,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273921202] [2024-11-14 03:01:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:55,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:56,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:56,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273921202] [2024-11-14 03:01:56,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273921202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:56,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:56,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-14 03:01:56,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281117204] [2024-11-14 03:01:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:56,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:01:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:01:56,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:01:56,200 INFO L87 Difference]: Start difference. First operand 173 states and 197 transitions. Second operand has 16 states, 16 states have (on average 5.5625) internal successors, (89), 15 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:58,122 INFO L93 Difference]: Finished difference Result 447 states and 541 transitions. [2024-11-14 03:01:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 03:01:58,122 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 15 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-14 03:01:58,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:58,123 INFO L225 Difference]: With dead ends: 447 [2024-11-14 03:01:58,123 INFO L226 Difference]: Without dead ends: 441 [2024-11-14 03:01:58,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 03:01:58,124 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 935 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:58,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 3246 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:01:58,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-14 03:01:58,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 139. [2024-11-14 03:01:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.144927536231884) internal successors, (158), 138 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 158 transitions. [2024-11-14 03:01:58,127 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 158 transitions. Word has length 89 [2024-11-14 03:01:58,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:58,128 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 158 transitions. [2024-11-14 03:01:58,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 15 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 158 transitions. [2024-11-14 03:01:58,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 03:01:58,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:58,129 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:58,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-14 03:01:58,129 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:58,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash -876290820, now seen corresponding path program 1 times [2024-11-14 03:01:58,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:58,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111218738] [2024-11-14 03:01:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:58,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:58,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:58,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:58,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111218738] [2024-11-14 03:01:58,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111218738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:58,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:58,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:58,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729255373] [2024-11-14 03:01:58,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:58,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:58,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:58,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:58,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,262 INFO L87 Difference]: Start difference. First operand 139 states and 158 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:58,292 INFO L93 Difference]: Finished difference Result 227 states and 272 transitions. [2024-11-14 03:01:58,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:58,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-14 03:01:58,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:58,293 INFO L225 Difference]: With dead ends: 227 [2024-11-14 03:01:58,293 INFO L226 Difference]: Without dead ends: 183 [2024-11-14 03:01:58,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,294 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 64 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:58,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 297 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:58,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-14 03:01:58,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2024-11-14 03:01:58,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.1818181818181819) internal successors, (208), 176 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 208 transitions. [2024-11-14 03:01:58,296 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 208 transitions. Word has length 107 [2024-11-14 03:01:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:58,296 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 208 transitions. [2024-11-14 03:01:58,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 208 transitions. [2024-11-14 03:01:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 03:01:58,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:58,297 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:58,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-14 03:01:58,297 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:58,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2031336711, now seen corresponding path program 1 times [2024-11-14 03:01:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:58,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932638845] [2024-11-14 03:01:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:58,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:58,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:58,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932638845] [2024-11-14 03:01:58,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932638845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:58,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:58,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:58,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119401043] [2024-11-14 03:01:58,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:58,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:58,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:58,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:58,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,392 INFO L87 Difference]: Start difference. First operand 177 states and 208 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:58,423 INFO L93 Difference]: Finished difference Result 341 states and 422 transitions. [2024-11-14 03:01:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-14 03:01:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:58,424 INFO L225 Difference]: With dead ends: 341 [2024-11-14 03:01:58,425 INFO L226 Difference]: Without dead ends: 259 [2024-11-14 03:01:58,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,425 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:58,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 298 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:58,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-14 03:01:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2024-11-14 03:01:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.217741935483871) internal successors, (302), 248 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 302 transitions. [2024-11-14 03:01:58,429 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 302 transitions. Word has length 110 [2024-11-14 03:01:58,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:58,429 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 302 transitions. [2024-11-14 03:01:58,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 302 transitions. [2024-11-14 03:01:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-14 03:01:58,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:58,430 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:58,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-14 03:01:58,431 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:58,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:58,431 INFO L85 PathProgramCache]: Analyzing trace with hash -447356689, now seen corresponding path program 1 times [2024-11-14 03:01:58,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:58,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272163012] [2024-11-14 03:01:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:58,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:58,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:58,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272163012] [2024-11-14 03:01:58,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272163012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:58,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:58,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:58,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012764111] [2024-11-14 03:01:58,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:58,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:58,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:58,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:58,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,574 INFO L87 Difference]: Start difference. First operand 249 states and 302 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:58,613 INFO L93 Difference]: Finished difference Result 557 states and 704 transitions. [2024-11-14 03:01:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:58,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-14 03:01:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:58,615 INFO L225 Difference]: With dead ends: 557 [2024-11-14 03:01:58,615 INFO L226 Difference]: Without dead ends: 403 [2024-11-14 03:01:58,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,615 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 50 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:58,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 299 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-14 03:01:58,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 385. [2024-11-14 03:01:58,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.2447916666666667) internal successors, (478), 384 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 478 transitions. [2024-11-14 03:01:58,620 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 478 transitions. Word has length 113 [2024-11-14 03:01:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:58,620 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 478 transitions. [2024-11-14 03:01:58,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 478 transitions. [2024-11-14 03:01:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-14 03:01:58,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:58,621 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:58,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-14 03:01:58,621 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:58,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:58,621 INFO L85 PathProgramCache]: Analyzing trace with hash -46693154, now seen corresponding path program 1 times [2024-11-14 03:01:58,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:58,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002304344] [2024-11-14 03:01:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:58,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:58,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:58,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002304344] [2024-11-14 03:01:58,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002304344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:58,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:58,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:58,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104840422] [2024-11-14 03:01:58,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:58,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:58,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:58,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:58,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,770 INFO L87 Difference]: Start difference. First operand 385 states and 478 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:58,813 INFO L93 Difference]: Finished difference Result 965 states and 1232 transitions. [2024-11-14 03:01:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-14 03:01:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:58,815 INFO L225 Difference]: With dead ends: 965 [2024-11-14 03:01:58,815 INFO L226 Difference]: Without dead ends: 675 [2024-11-14 03:01:58,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,815 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 43 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:58,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 300 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:58,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-14 03:01:58,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 641. [2024-11-14 03:01:58,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 640 states have (on average 1.259375) internal successors, (806), 640 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 806 transitions. [2024-11-14 03:01:58,822 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 806 transitions. Word has length 116 [2024-11-14 03:01:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:58,822 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 806 transitions. [2024-11-14 03:01:58,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 806 transitions. [2024-11-14 03:01:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-14 03:01:58,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:58,823 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:58,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-14 03:01:58,823 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:58,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1417834235, now seen corresponding path program 1 times [2024-11-14 03:01:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:58,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765348673] [2024-11-14 03:01:58,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:58,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:58,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765348673] [2024-11-14 03:01:58,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765348673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:58,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:58,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328141389] [2024-11-14 03:01:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:58,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:58,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:58,955 INFO L87 Difference]: Start difference. First operand 641 states and 806 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:58,999 INFO L93 Difference]: Finished difference Result 1733 states and 2216 transitions. [2024-11-14 03:01:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-14 03:01:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:59,002 INFO L225 Difference]: With dead ends: 1733 [2024-11-14 03:01:59,003 INFO L226 Difference]: Without dead ends: 1187 [2024-11-14 03:01:59,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:59,004 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 33 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:59,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 301 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:59,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2024-11-14 03:01:59,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1121. [2024-11-14 03:01:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.2625) internal successors, (1414), 1120 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1414 transitions. [2024-11-14 03:01:59,018 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1414 transitions. Word has length 119 [2024-11-14 03:01:59,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:59,018 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1414 transitions. [2024-11-14 03:01:59,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1414 transitions. [2024-11-14 03:01:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-14 03:01:59,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:59,018 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:59,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-14 03:01:59,019 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:59,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:59,019 INFO L85 PathProgramCache]: Analyzing trace with hash 488041427, now seen corresponding path program 1 times [2024-11-14 03:01:59,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:59,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051982780] [2024-11-14 03:01:59,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:59,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:59,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:59,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:59,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051982780] [2024-11-14 03:01:59,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051982780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:59,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:59,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339310350] [2024-11-14 03:01:59,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:59,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:59,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:59,146 INFO L87 Difference]: Start difference. First operand 1121 states and 1414 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:59,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:59,373 INFO L93 Difference]: Finished difference Result 4420 states and 5611 transitions. [2024-11-14 03:01:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:01:59,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-14 03:01:59,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:59,379 INFO L225 Difference]: With dead ends: 4420 [2024-11-14 03:01:59,380 INFO L226 Difference]: Without dead ends: 3394 [2024-11-14 03:01:59,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:01:59,382 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 837 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:59,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1359 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2024-11-14 03:01:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 1567. [2024-11-14 03:01:59,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 1.2490421455938698) internal successors, (1956), 1566 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) [2024-11-14 03:01:59,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1956 transitions. [2024-11-14 03:01:59,409 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1956 transitions. Word has length 122 [2024-11-14 03:01:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:59,409 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 1956 transitions. [2024-11-14 03:01:59,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1956 transitions. [2024-11-14 03:01:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 03:01:59,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:59,410 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:59,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-14 03:01:59,410 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:59,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:59,411 INFO L85 PathProgramCache]: Analyzing trace with hash 586997656, now seen corresponding path program 1 times [2024-11-14 03:01:59,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:59,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362232312] [2024-11-14 03:01:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:59,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:59,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:59,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362232312] [2024-11-14 03:01:59,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362232312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:59,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:59,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:59,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279619523] [2024-11-14 03:01:59,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:59,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:59,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:59,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:59,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:59,548 INFO L87 Difference]: Start difference. First operand 1567 states and 1956 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:59,611 INFO L93 Difference]: Finished difference Result 3665 states and 4596 transitions. [2024-11-14 03:01:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:59,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-14 03:01:59,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:59,617 INFO L225 Difference]: With dead ends: 3665 [2024-11-14 03:01:59,618 INFO L226 Difference]: Without dead ends: 2193 [2024-11-14 03:01:59,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:59,622 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 78 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:59,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 235 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2024-11-14 03:01:59,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2191. [2024-11-14 03:01:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.24337899543379) internal successors, (2723), 2190 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2723 transitions. [2024-11-14 03:01:59,663 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2723 transitions. Word has length 124 [2024-11-14 03:01:59,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:59,663 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2723 transitions. [2024-11-14 03:01:59,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2723 transitions. [2024-11-14 03:01:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 03:01:59,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:59,665 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:59,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-14 03:01:59,665 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:01:59,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1582353173, now seen corresponding path program 1 times [2024-11-14 03:01:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282815072] [2024-11-14 03:01:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:59,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:59,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:59,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:59,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282815072] [2024-11-14 03:01:59,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282815072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:59,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:59,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:59,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638416424] [2024-11-14 03:01:59,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:59,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:59,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:59,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:59,971 INFO L87 Difference]: Start difference. First operand 2191 states and 2723 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:00,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:00,141 INFO L93 Difference]: Finished difference Result 4289 states and 5346 transitions. [2024-11-14 03:02:00,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:02:00,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-14 03:02:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:00,146 INFO L225 Difference]: With dead ends: 4289 [2024-11-14 03:02:00,146 INFO L226 Difference]: Without dead ends: 2193 [2024-11-14 03:02:00,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:02:00,148 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 179 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:00,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 358 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:02:00,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2024-11-14 03:02:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2191. [2024-11-14 03:02:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.2429223744292237) internal successors, (2722), 2190 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2722 transitions. [2024-11-14 03:02:00,175 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2722 transitions. Word has length 124 [2024-11-14 03:02:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:00,176 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2722 transitions. [2024-11-14 03:02:00,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2722 transitions. [2024-11-14 03:02:00,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-14 03:02:00,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:00,177 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:00,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-14 03:02:00,177 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:02:00,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:00,177 INFO L85 PathProgramCache]: Analyzing trace with hash -21234532, now seen corresponding path program 1 times [2024-11-14 03:02:00,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:00,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625572883] [2024-11-14 03:02:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:00,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:00,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:00,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625572883] [2024-11-14 03:02:00,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625572883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:00,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:00,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:02:00,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661230416] [2024-11-14 03:02:00,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:00,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:02:00,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:00,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:02:00,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:02:00,565 INFO L87 Difference]: Start difference. First operand 2191 states and 2722 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:00,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:00,682 INFO L93 Difference]: Finished difference Result 2195 states and 2724 transitions. [2024-11-14 03:02:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:02:00,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-14 03:02:00,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:00,684 INFO L225 Difference]: With dead ends: 2195 [2024-11-14 03:02:00,685 INFO L226 Difference]: Without dead ends: 2193 [2024-11-14 03:02:00,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:02:00,685 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 79 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:00,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 800 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:02:00,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2024-11-14 03:02:00,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2191. [2024-11-14 03:02:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.2283105022831051) internal successors, (2690), 2190 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2690 transitions. [2024-11-14 03:02:00,703 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2690 transitions. Word has length 125 [2024-11-14 03:02:00,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:00,703 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2690 transitions. [2024-11-14 03:02:00,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2690 transitions. [2024-11-14 03:02:00,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-14 03:02:00,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:00,704 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:00,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-14 03:02:00,704 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:02:00,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:00,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1771420323, now seen corresponding path program 1 times [2024-11-14 03:02:00,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:00,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720272981] [2024-11-14 03:02:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:00,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:02:01,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:01,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720272981] [2024-11-14 03:02:01,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720272981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:01,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:01,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:02:01,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813901196] [2024-11-14 03:02:01,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:01,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:02:01,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:01,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:02:01,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:02:01,091 INFO L87 Difference]: Start difference. First operand 2191 states and 2690 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:01,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:01,424 INFO L93 Difference]: Finished difference Result 5490 states and 6760 transitions. [2024-11-14 03:02:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:02:01,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 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 144 [2024-11-14 03:02:01,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:01,429 INFO L225 Difference]: With dead ends: 5490 [2024-11-14 03:02:01,429 INFO L226 Difference]: Without dead ends: 3387 [2024-11-14 03:02:01,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:02:01,430 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 465 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:01,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 499 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:02:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2024-11-14 03:02:01,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 2191. [2024-11-14 03:02:01,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.227853881278539) internal successors, (2689), 2190 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:01,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2689 transitions. [2024-11-14 03:02:01,461 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2689 transitions. Word has length 144 [2024-11-14 03:02:01,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:01,462 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2689 transitions. [2024-11-14 03:02:01,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:01,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2689 transitions. [2024-11-14 03:02:01,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-14 03:02:01,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:01,463 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:01,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-14 03:02:01,463 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:02:01,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:01,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1447330984, now seen corresponding path program 1 times [2024-11-14 03:02:01,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:01,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254778366] [2024-11-14 03:02:01,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:01,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:02:03,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:03,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254778366] [2024-11-14 03:02:03,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254778366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:03,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:03,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-14 03:02:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44427237] [2024-11-14 03:02:03,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:03,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 03:02:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:03,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 03:02:03,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:02:03,179 INFO L87 Difference]: Start difference. First operand 2191 states and 2689 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 25 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:06,233 INFO L93 Difference]: Finished difference Result 6556 states and 8082 transitions. [2024-11-14 03:02:06,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-14 03:02:06,234 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 25 states have internal predecessors, (135), 0 states have call successors, (0), 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 146 [2024-11-14 03:02:06,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:06,241 INFO L225 Difference]: With dead ends: 6556 [2024-11-14 03:02:06,242 INFO L226 Difference]: Without dead ends: 4452 [2024-11-14 03:02:06,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=347, Invalid=1909, Unknown=0, NotChecked=0, Total=2256 [2024-11-14 03:02:06,245 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 1113 mSDsluCounter, 6140 mSDsCounter, 0 mSdLazyCounter, 3132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 6563 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:06,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 6563 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3132 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:02:06,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4452 states. [2024-11-14 03:02:06,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 2215. [2024-11-14 03:02:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 2214 states have (on average 1.2267389340560073) internal successors, (2716), 2214 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2716 transitions. [2024-11-14 03:02:06,284 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2716 transitions. Word has length 146 [2024-11-14 03:02:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:06,285 INFO L471 AbstractCegarLoop]: Abstraction has 2215 states and 2716 transitions. [2024-11-14 03:02:06,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 25 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:02:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2716 transitions. [2024-11-14 03:02:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-14 03:02:06,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:06,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:06,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-14 03:02:06,286 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:02:06,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:06,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2137635042, now seen corresponding path program 1 times [2024-11-14 03:02:06,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:06,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533005869] [2024-11-14 03:02:06,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:06,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:15,466 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:15,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533005869] [2024-11-14 03:02:15,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533005869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:02:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72362365] [2024-11-14 03:02:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:15,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:02:15,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:02:15,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:02:15,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:02:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:15,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-14 03:02:15,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:32,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:05:01,985 WARN L286 SmtUtils]: Spent 9.15s on a formula simplification. DAG size of input: 407 DAG size of output: 404 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:06:56,030 WARN L286 SmtUtils]: Spent 7.19s on a formula simplification that was a NOOP. DAG size: 565 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:07:51,375 WARN L286 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 565 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:11:55,177 WARN L286 SmtUtils]: Spent 21.11s on a formula simplification that was a NOOP. DAG size: 714 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:13:30,075 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-14 03:13:30,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-14 03:13:30,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2024-11-14 03:13:30,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1293021826] [2024-11-14 03:13:30,109 INFO L159 IcfgInterpreter]: Started Sifa with 130 locations of interest [2024-11-14 03:13:30,109 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:13:30,112 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:13:30,117 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:13:30,118 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:13:30,448 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:326) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:220) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 44 more [2024-11-14 03:13:30,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:13:30,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2024-11-14 03:13:30,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070162670] [2024-11-14 03:13:30,457 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:13:30,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-14 03:13:30,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:13:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-14 03:13:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1072, Invalid=9230, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 03:13:30,459 INFO L87 Difference]: Start difference. First operand 2215 states and 2716 transitions. Second operand has 46 states, 46 states have (on average 3.1956521739130435) internal successors, (147), 45 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:30,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 74.9s TimeCoverageRelationStatistics Valid=1072, Invalid=9230, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 03:13:30,461 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:30,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:13:30,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:13:30,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-14 03:13:30,662 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:278) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-11-14 03:13:30,665 INFO L158 Benchmark]: Toolchain (without parser) took 784913.95ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 86.3MB in the beginning and 760.4MB in the end (delta: -674.1MB). Peak memory consumption was 742.3MB. Max. memory is 16.1GB. [2024-11-14 03:13:30,665 INFO L158 Benchmark]: CDTParser took 1.28ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:13:30,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1828.89ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 44.4MB in the end (delta: 41.9MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2024-11-14 03:13:30,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 249.46ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 63.8MB in the end (delta: -19.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-11-14 03:13:30,665 INFO L158 Benchmark]: Boogie Preprocessor took 230.59ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 48.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:13:30,665 INFO L158 Benchmark]: RCFGBuilder took 5139.68ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 48.6MB in the beginning and 154.9MB in the end (delta: -106.4MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. [2024-11-14 03:13:30,666 INFO L158 Benchmark]: TraceAbstraction took 777458.75ms. Allocated memory was 234.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 154.9MB in the beginning and 760.4MB in the end (delta: -605.4MB). Peak memory consumption was 694.0MB. Max. memory is 16.1GB. [2024-11-14 03:13:30,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1828.89ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 44.4MB in the end (delta: 41.9MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 249.46ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 63.8MB in the end (delta: -19.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 230.59ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 48.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 5139.68ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 48.6MB in the beginning and 154.9MB in the end (delta: -106.4MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. * TraceAbstraction took 777458.75ms. Allocated memory was 234.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 154.9MB in the beginning and 760.4MB in the end (delta: -605.4MB). Peak memory consumption was 694.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:13:33,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:13:33,369 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:13:33,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:13:33,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:13:33,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:13:33,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:13:33,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:13:33,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:13:33,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:13:33,439 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:13:33,440 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:13:33,440 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:13:33,440 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:13:33,440 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:13:33,440 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:13:33,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:13:33,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:13:33,442 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:13:33,442 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:13:33,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:13:33,444 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:13:33,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:13:33,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:13:33,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:13:33,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:13:33,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 [2024-11-14 03:13:33,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:13:33,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:13:33,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:13:33,833 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:13:33,833 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:13:33,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c Unable to find full path for "g++" [2024-11-14 03:13:35,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:13:36,291 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:13:36,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2024-11-14 03:13:36,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data/af484eb3a/5f1f436432604d64aaa9b9dd31b57743/FLAG9e721bb65 [2024-11-14 03:13:36,340 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/data/af484eb3a/5f1f436432604d64aaa9b9dd31b57743 [2024-11-14 03:13:36,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:13:36,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:13:36,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:13:36,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:13:36,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:13:36,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:13:36" (1/1) ... [2024-11-14 03:13:36,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:36, skipping insertion in model container [2024-11-14 03:13:36,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:13:36" (1/1) ... [2024-11-14 03:13:36,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:13:37,049 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2024-11-14 03:13:37,129 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2024-11-14 03:13:37,174 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2024-11-14 03:13:37,189 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2024-11-14 03:13:37,203 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2024-11-14 03:13:37,268 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2024-11-14 03:13:37,307 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2024-11-14 03:13:37,320 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2024-11-14 03:13:37,334 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2024-11-14 03:13:37,349 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2024-11-14 03:13:37,360 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2024-11-14 03:13:37,373 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2024-11-14 03:13:37,385 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2024-11-14 03:13:37,398 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2024-11-14 03:13:37,411 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2024-11-14 03:13:37,423 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2024-11-14 03:13:37,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:13:37,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:13:37,642 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2024-11-14 03:13:37,688 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2024-11-14 03:13:37,711 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2024-11-14 03:13:37,723 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2024-11-14 03:13:37,736 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2024-11-14 03:13:37,781 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2024-11-14 03:13:37,803 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2024-11-14 03:13:37,814 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2024-11-14 03:13:37,824 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2024-11-14 03:13:37,836 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2024-11-14 03:13:37,846 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2024-11-14 03:13:37,856 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2024-11-14 03:13:37,868 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2024-11-14 03:13:37,879 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2024-11-14 03:13:37,889 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2024-11-14 03:13:37,901 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2024-11-14 03:13:37,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:13:38,006 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:13:38,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38 WrapperNode [2024-11-14 03:13:38,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:13:38,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:13:38,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:13:38,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:13:38,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,251 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6218 [2024-11-14 03:13:38,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:13:38,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:13:38,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:13:38,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:13:38,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:13:38,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:13:38,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:13:38,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:13:38,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (1/1) ... [2024-11-14 03:13:38,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:13:38,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:13:38,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:13:38,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:13:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:13:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:13:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:13:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:13:39,010 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:13:39,013 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:13:45,368 INFO L? ?]: Removed 1254 outVars from TransFormulas that were not future-live. [2024-11-14 03:13:45,369 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:13:45,441 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:13:45,441 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:13:45,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:13:45 BoogieIcfgContainer [2024-11-14 03:13:45,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:13:45,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:13:45,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:13:45,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:13:45,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:13:36" (1/3) ... [2024-11-14 03:13:45,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162bf8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:13:45, skipping insertion in model container [2024-11-14 03:13:45,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:13:38" (2/3) ... [2024-11-14 03:13:45,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162bf8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:13:45, skipping insertion in model container [2024-11-14 03:13:45,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:13:45" (3/3) ... [2024-11-14 03:13:45,460 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2024-11-14 03:13:45,482 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:13:45,485 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c that has 1 procedures, 1193 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2024-11-14 03:13:45,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:13:45,624 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78029141, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:13:45,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-14 03:13:45,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-14 03:13:45,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:45,682 INFO L215 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] [2024-11-14 03:13:45,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:13:45,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1494001524, now seen corresponding path program 1 times [2024-11-14 03:13:45,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:13:45,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727785416] [2024-11-14 03:13:45,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:45,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:45,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:13:45,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:13:45,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:13:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:46,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:13:46,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:13:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:13:47,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:13:47,296 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:13:47,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727785416] [2024-11-14 03:13:47,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727785416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:47,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:47,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:13:47,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917610451] [2024-11-14 03:13:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:47,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:13:47,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:47,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:13:47,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:13:47,349 INFO L87 Difference]: Start difference. First operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 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 14.6) 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) [2024-11-14 03:13:49,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:49,661 INFO L93 Difference]: Finished difference Result 1556 states and 2660 transitions. [2024-11-14 03:13:49,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:13:49,666 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 [2024-11-14 03:13:49,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:49,697 INFO L225 Difference]: With dead ends: 1556 [2024-11-14 03:13:49,697 INFO L226 Difference]: Without dead ends: 945 [2024-11-14 03:13:49,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:13:49,709 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 4702 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4702 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:49,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4702 Valid, 931 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 03:13:49,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-14 03:13:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2024-11-14 03:13:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 929 states have (on average 1.2927879440258343) internal successors, (1201), 944 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1201 transitions. [2024-11-14 03:13:49,842 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1201 transitions. Word has length 73 [2024-11-14 03:13:49,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:49,843 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1201 transitions. [2024-11-14 03:13:49,843 INFO L472 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) [2024-11-14 03:13:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1201 transitions. [2024-11-14 03:13:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-14 03:13:49,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:49,849 INFO L215 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] [2024-11-14 03:13:49,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:13:50,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:50,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:13:50,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:50,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2060458333, now seen corresponding path program 1 times [2024-11-14 03:13:50,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:13:50,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553351206] [2024-11-14 03:13:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:50,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:50,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:13:50,057 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:13:50,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:13:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:50,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:13:50,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:13:51,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:13:51,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:13:51,107 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:13:51,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553351206] [2024-11-14 03:13:51,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553351206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:51,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:51,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:13:51,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054365963] [2024-11-14 03:13:51,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:51,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:13:51,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:51,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:13:51,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:13:51,111 INFO L87 Difference]: Start difference. First operand 945 states and 1201 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) [2024-11-14 03:13:52,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:52,304 INFO L93 Difference]: Finished difference Result 1227 states and 1558 transitions. [2024-11-14 03:13:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:13:52,304 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 [2024-11-14 03:13:52,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:52,311 INFO L225 Difference]: With dead ends: 1227 [2024-11-14 03:13:52,311 INFO L226 Difference]: Without dead ends: 752 [2024-11-14 03:13:52,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:13:52,318 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 2793 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:52,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 498 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:13:52,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-11-14 03:13:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2024-11-14 03:13:52,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 736 states have (on average 1.3084239130434783) internal successors, (963), 751 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 963 transitions. [2024-11-14 03:13:52,353 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 963 transitions. Word has length 73 [2024-11-14 03:13:52,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:52,354 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 963 transitions. [2024-11-14 03:13:52,354 INFO L472 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) [2024-11-14 03:13:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 963 transitions. [2024-11-14 03:13:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-14 03:13:52,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:52,357 INFO L215 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] [2024-11-14 03:13:52,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:13:52,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:52,558 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:13:52,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:52,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1120848068, now seen corresponding path program 1 times [2024-11-14 03:13:52,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:13:52,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078924267] [2024-11-14 03:13:52,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:52,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:52,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:13:52,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:13:52,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:13:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:52,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:13:52,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:13:53,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:13:53,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:13:53,420 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:13:53,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078924267] [2024-11-14 03:13:53,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078924267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:53,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:53,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:13:53,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804062303] [2024-11-14 03:13:53,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:53,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:13:53,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:13:53,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:13:53,423 INFO L87 Difference]: Start difference. First operand 752 states and 963 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) [2024-11-14 03:13:54,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:54,278 INFO L93 Difference]: Finished difference Result 962 states and 1223 transitions. [2024-11-14 03:13:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:13:54,278 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 [2024-11-14 03:13:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:54,283 INFO L225 Difference]: With dead ends: 962 [2024-11-14 03:13:54,284 INFO L226 Difference]: Without dead ends: 585 [2024-11-14 03:13:54,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:13:54,287 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 1434 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:54,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 413 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:13:54,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-14 03:13:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-11-14 03:13:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 569 states have (on average 1.3163444639718804) internal successors, (749), 584 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:54,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 749 transitions. [2024-11-14 03:13:54,310 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 749 transitions. Word has length 73 [2024-11-14 03:13:54,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:54,311 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 749 transitions. [2024-11-14 03:13:54,311 INFO L472 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) [2024-11-14 03:13:54,311 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 749 transitions. [2024-11-14 03:13:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:13:54,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:54,314 INFO L215 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] [2024-11-14 03:13:54,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:13:54,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:54,515 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:13:54,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:54,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2072591993, now seen corresponding path program 1 times [2024-11-14 03:13:54,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:13:54,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910992790] [2024-11-14 03:13:54,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:54,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:54,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:13:54,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:13:54,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 03:13:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:54,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:13:54,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:13:55,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:13:55,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:13:55,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:13:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910992790] [2024-11-14 03:13:55,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910992790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:55,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:55,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:13:55,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307792384] [2024-11-14 03:13:55,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:55,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:13:55,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:55,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:13:55,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:13:55,324 INFO L87 Difference]: Start difference. First operand 585 states and 749 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:55,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:55,938 INFO L93 Difference]: Finished difference Result 723 states and 912 transitions. [2024-11-14 03:13:55,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:13:55,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-14 03:13:55,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:55,942 INFO L225 Difference]: With dead ends: 723 [2024-11-14 03:13:55,942 INFO L226 Difference]: Without dead ends: 431 [2024-11-14 03:13:55,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:13:55,946 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 1023 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:55,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 335 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:13:55,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-14 03:13:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2024-11-14 03:13:55,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 415 states have (on average 1.3180722891566266) internal successors, (547), 430 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 547 transitions. [2024-11-14 03:13:55,972 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 547 transitions. Word has length 75 [2024-11-14 03:13:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:55,972 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 547 transitions. [2024-11-14 03:13:55,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:55,972 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 547 transitions. [2024-11-14 03:13:55,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:13:55,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:55,976 INFO L215 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] [2024-11-14 03:13:55,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 03:13:56,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:56,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:13:56,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1634061784, now seen corresponding path program 1 times [2024-11-14 03:13:56,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:13:56,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552399210] [2024-11-14 03:13:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:56,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:56,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:13:56,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:13:56,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 03:13:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:56,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:13:56,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:13:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:13:56,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:13:56,874 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:13:56,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552399210] [2024-11-14 03:13:56,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552399210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:56,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:56,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:13:56,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143783040] [2024-11-14 03:13:56,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:56,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:13:56,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:56,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:13:56,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:13:56,876 INFO L87 Difference]: Start difference. First operand 431 states and 547 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:57,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:57,509 INFO L93 Difference]: Finished difference Result 659 states and 844 transitions. [2024-11-14 03:13:57,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:13:57,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-14 03:13:57,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:57,513 INFO L225 Difference]: With dead ends: 659 [2024-11-14 03:13:57,513 INFO L226 Difference]: Without dead ends: 423 [2024-11-14 03:13:57,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:13:57,514 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 988 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:57,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 312 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:13:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-14 03:13:57,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2024-11-14 03:13:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3194103194103195) internal successors, (537), 422 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 537 transitions. [2024-11-14 03:13:57,527 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 537 transitions. Word has length 77 [2024-11-14 03:13:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:57,527 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 537 transitions. [2024-11-14 03:13:57,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 537 transitions. [2024-11-14 03:13:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:13:57,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:57,529 INFO L215 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, 1] [2024-11-14 03:13:57,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 03:13:57,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:57,730 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:13:57,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:57,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1748744325, now seen corresponding path program 1 times [2024-11-14 03:13:57,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:13:57,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216849311] [2024-11-14 03:13:57,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:57,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:13:57,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:13:57,734 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:13:57,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 03:13:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:58,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:13:58,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:13:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:13:58,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:13:58,677 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:13:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216849311] [2024-11-14 03:13:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216849311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:58,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:13:58,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:13:58,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259537366] [2024-11-14 03:13:58,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:58,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:13:58,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:58,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:13:58,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:13:58,680 INFO L87 Difference]: Start difference. First operand 423 states and 537 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:59,970 INFO L93 Difference]: Finished difference Result 652 states and 834 transitions. [2024-11-14 03:13:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:13:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-14 03:13:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:59,973 INFO L225 Difference]: With dead ends: 652 [2024-11-14 03:13:59,973 INFO L226 Difference]: Without dead ends: 423 [2024-11-14 03:13:59,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:13:59,974 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1019 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:59,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 820 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:13:59,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-14 03:13:59,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2024-11-14 03:13:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.316953316953317) internal successors, (536), 422 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:59,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 536 transitions. [2024-11-14 03:13:59,986 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 536 transitions. Word has length 79 [2024-11-14 03:13:59,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:59,987 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 536 transitions. [2024-11-14 03:13:59,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:13:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 536 transitions. [2024-11-14 03:13:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:13:59,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:59,988 INFO L215 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, 1] [2024-11-14 03:13:59,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:14:00,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:14:00,192 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:14:00,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:14:00,192 INFO L85 PathProgramCache]: Analyzing trace with hash -883245509, now seen corresponding path program 1 times [2024-11-14 03:14:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:14:00,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761584571] [2024-11-14 03:14:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:00,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:14:00,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:14:00,196 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:14:00,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-14 03:14:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:00,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:14:00,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:14:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:14:01,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:14:01,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:14:01,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761584571] [2024-11-14 03:14:01,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761584571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:14:01,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:14:01,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:14:01,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521169154] [2024-11-14 03:14:01,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:14:01,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:14:01,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:14:01,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:14:01,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:14:01,325 INFO L87 Difference]: Start difference. First operand 423 states and 536 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:14:02,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:14:02,629 INFO L93 Difference]: Finished difference Result 517 states and 668 transitions. [2024-11-14 03:14:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:14:02,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-14 03:14:02,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:14:02,631 INFO L225 Difference]: With dead ends: 517 [2024-11-14 03:14:02,631 INFO L226 Difference]: Without dead ends: 423 [2024-11-14 03:14:02,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:14:02,633 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 1105 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:14:02,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 1203 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:14:02,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-14 03:14:02,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2024-11-14 03:14:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3144963144963144) internal successors, (535), 422 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:14:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 535 transitions. [2024-11-14 03:14:02,645 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 535 transitions. Word has length 79 [2024-11-14 03:14:02,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:14:02,645 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 535 transitions. [2024-11-14 03:14:02,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:14:02,646 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 535 transitions. [2024-11-14 03:14:02,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:14:02,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:14:02,647 INFO L215 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, 1] [2024-11-14 03:14:02,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-14 03:14:02,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:14:02,848 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:14:02,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:14:02,849 INFO L85 PathProgramCache]: Analyzing trace with hash -876086789, now seen corresponding path program 1 times [2024-11-14 03:14:02,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:14:02,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796506959] [2024-11-14 03:14:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:02,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:14:02,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:14:02,851 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:14:02,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-14 03:14:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:03,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:14:03,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:14:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:14:03,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:14:03,927 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:14:03,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796506959] [2024-11-14 03:14:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796506959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:14:03,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:14:03,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:14:03,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107924000] [2024-11-14 03:14:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:14:03,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:14:03,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:14:03,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:14:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:14:03,929 INFO L87 Difference]: Start difference. First operand 423 states and 535 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:14:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:14:05,085 INFO L93 Difference]: Finished difference Result 560 states and 722 transitions. [2024-11-14 03:14:05,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:14:05,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-14 03:14:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:14:05,087 INFO L225 Difference]: With dead ends: 560 [2024-11-14 03:14:05,087 INFO L226 Difference]: Without dead ends: 423 [2024-11-14 03:14:05,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:14:05,088 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 1561 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:14:05,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 1213 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:14:05,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-14 03:14:05,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2024-11-14 03:14:05,099 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) [2024-11-14 03:14:05,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions. [2024-11-14 03:14:05,100 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 79 [2024-11-14 03:14:05,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:14:05,101 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions. [2024-11-14 03:14:05,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:14:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions. [2024-11-14 03:14:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:14:05,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:14:05,103 INFO L215 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, 1, 1] [2024-11-14 03:14:05,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-14 03:14:05,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:14:05,304 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2024-11-14 03:14:05,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:14:05,304 INFO L85 PathProgramCache]: Analyzing trace with hash -178984548, now seen corresponding path program 1 times [2024-11-14 03:14:05,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:14:05,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025435983] [2024-11-14 03:14:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:05,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:14:05,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:14:05,307 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:14:05,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e439b543-8f90-45a4-b5be-9bc6c2e04f9d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 03:14:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:05,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:14:05,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:14:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:14:06,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:14:06,488 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:14:06,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025435983] [2024-11-14 03:14:06,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025435983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:14:06,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:14:06,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:14:06,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428651779] [2024-11-14 03:14:06,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:14:06,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:14:06,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:14:06,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:14:06,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:14:06,490 INFO L87 Difference]: Start difference. First operand 423 states and 534 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)