./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --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 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:01:48,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:01:48,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:01:48,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:01:48,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:01:48,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:01:48,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:01:48,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:01:48,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:01:48,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:01:48,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:01:48,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:01:48,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:01:48,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:01:48,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:01:48,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:01:48,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:01:48,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:01:48,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:01:48,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:01:48,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:01:48,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:01:48,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:01:48,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:01:48,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:01:48,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:01:48,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:01:48,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:01:48,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:01:48,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:01:48,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:01:48,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:01:48,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:01:48,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:01:48,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:01:48,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:01:48,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:01:48,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:01:48,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:01:48,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:01:48,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:01:48,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:01:48,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:01:48,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:01:48,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:01:48,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:01:48,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:01:48,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:01:48,586 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:01:48,586 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:01:48,586 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:01:48,587 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:01:48,588 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:01:48,588 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:01:48,588 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:01:48,589 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:01:48,589 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:01:48,589 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:01:48,589 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:01:48,590 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:01:48,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:01:48,591 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:01:48,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:01:48,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:01:48,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:01:48,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:01:48,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:01:48,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:01:48,593 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:01:48,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:01:48,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:01:48,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:01:48,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:01:48,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:01:48,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:01:48,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:01:48,596 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:01:48,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:01:48,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:01:48,596 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:01:48,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:01:48,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:01:48,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:01:48,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b [2022-11-22 02:01:48,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:01:48,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:01:48,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:01:48,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:01:48,933 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:01:48,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-11-22 02:01:52,002 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:01:52,551 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:01:52,551 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-11-22 02:01:52,587 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/data/418f70217/03704e6041334753b06abd40bf3d357f/FLAGd35d66256 [2022-11-22 02:01:52,602 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/data/418f70217/03704e6041334753b06abd40bf3d357f [2022-11-22 02:01:52,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:01:52,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:01:52,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:01:52,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:01:52,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:01:52,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:01:52" (1/1) ... [2022-11-22 02:01:52,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407c6625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:52, skipping insertion in model container [2022-11-22 02:01:52,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:01:52" (1/1) ... [2022-11-22 02:01:52,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:01:52,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:01:53,473 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2022-11-22 02:01:53,538 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2022-11-22 02:01:53,567 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2022-11-22 02:01:53,575 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2022-11-22 02:01:53,597 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2022-11-22 02:01:53,619 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2022-11-22 02:01:53,628 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2022-11-22 02:01:53,646 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2022-11-22 02:01:53,653 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2022-11-22 02:01:53,662 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2022-11-22 02:01:53,677 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2022-11-22 02:01:53,704 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2022-11-22 02:01:53,712 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2022-11-22 02:01:53,720 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2022-11-22 02:01:53,736 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2022-11-22 02:01:53,759 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2022-11-22 02:01:53,797 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2022-11-22 02:01:53,804 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2022-11-22 02:01:53,814 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2022-11-22 02:01:53,852 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2022-11-22 02:01:53,911 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2022-11-22 02:01:53,992 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2022-11-22 02:01:54,078 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2022-11-22 02:01:54,085 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2022-11-22 02:01:54,093 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2022-11-22 02:01:54,110 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2022-11-22 02:01:54,142 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2022-11-22 02:01:54,176 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2022-11-22 02:01:54,229 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2022-11-22 02:01:55,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:01:55,117 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:01:55,248 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2022-11-22 02:01:55,283 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2022-11-22 02:01:55,298 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2022-11-22 02:01:55,309 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2022-11-22 02:01:55,326 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2022-11-22 02:01:55,336 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2022-11-22 02:01:55,350 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2022-11-22 02:01:55,377 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2022-11-22 02:01:55,388 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2022-11-22 02:01:55,401 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2022-11-22 02:01:55,424 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2022-11-22 02:01:55,459 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2022-11-22 02:01:55,466 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2022-11-22 02:01:55,473 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2022-11-22 02:01:55,495 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2022-11-22 02:01:55,513 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2022-11-22 02:01:55,542 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2022-11-22 02:01:55,598 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2022-11-22 02:01:55,605 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2022-11-22 02:01:55,617 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2022-11-22 02:01:55,636 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2022-11-22 02:01:55,676 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2022-11-22 02:01:55,730 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2022-11-22 02:01:55,735 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2022-11-22 02:01:55,741 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2022-11-22 02:01:55,753 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2022-11-22 02:01:55,770 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2022-11-22 02:01:55,796 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2022-11-22 02:01:55,836 WARN L237 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_ef8238ff-3c4f-4e1d-965e-2755f4024864/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2022-11-22 02:01:56,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:01:56,532 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:01:56,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56 WrapperNode [2022-11-22 02:01:56,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:01:56,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:01:56,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:01:56,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:01:56,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,839 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12601 [2022-11-22 02:01:56,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:01:56,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:01:56,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:01:56,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:01:56,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:56,994 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:57,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:57,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:01:57,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:01:57,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:01:57,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:01:57,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (1/1) ... [2022-11-22 02:01:57,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:01:57,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:01:57,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:01:57,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8238ff-3c4f-4e1d-965e-2755f4024864/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:01:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:01:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:01:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:01:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:01:57,598 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:01:57,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:02:03,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:02:04,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:02:04,207 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:02:04,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:04 BoogieIcfgContainer [2022-11-22 02:02:04,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:02:04,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:02:04,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:02:04,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:02:04,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:01:52" (1/3) ... [2022-11-22 02:02:04,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5766e4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:04, skipping insertion in model container [2022-11-22 02:02:04,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:01:56" (2/3) ... [2022-11-22 02:02:04,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5766e4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:04, skipping insertion in model container [2022-11-22 02:02:04,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:04" (3/3) ... [2022-11-22 02:02:04,230 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-11-22 02:02:04,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:02:04,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-22 02:02:04,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:02:04,351 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4fb9160c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:02:04,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-22 02:02:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 2002 states, 1972 states have (on average 1.8671399594320486) internal successors, (3682), 2001 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:04,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 02:02:04,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:04,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:04,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:04,404 INFO L85 PathProgramCache]: Analyzing trace with hash -393314146, now seen corresponding path program 1 times [2022-11-22 02:02:04,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:04,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361220200] [2022-11-22 02:02:04,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:04,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:05,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:05,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361220200] [2022-11-22 02:02:05,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361220200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:05,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:05,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:05,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320129914] [2022-11-22 02:02:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:05,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:05,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:05,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:05,237 INFO L87 Difference]: Start difference. First operand has 2002 states, 1972 states have (on average 1.8671399594320486) internal successors, (3682), 2001 states have internal predecessors, (3682), 0 states have call successors, (0), 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 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:06,843 INFO L93 Difference]: Finished difference Result 2934 states and 5219 transitions. [2022-11-22 02:02:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:06,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-11-22 02:02:06,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:06,878 INFO L225 Difference]: With dead ends: 2934 [2022-11-22 02:02:06,878 INFO L226 Difference]: Without dead ends: 1500 [2022-11-22 02:02:06,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:06,892 INFO L413 NwaCegarLoop]: 1755 mSDtfsCounter, 7837 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7837 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:06,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7837 Valid, 1795 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:02:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-11-22 02:02:07,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1500. [2022-11-22 02:02:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1471 states have (on average 1.3038749150237934) internal successors, (1918), 1499 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1918 transitions. [2022-11-22 02:02:07,061 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1918 transitions. Word has length 100 [2022-11-22 02:02:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:07,061 INFO L495 AbstractCegarLoop]: Abstraction has 1500 states and 1918 transitions. [2022-11-22 02:02:07,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1918 transitions. [2022-11-22 02:02:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 02:02:07,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:07,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:07,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:02:07,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:07,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:07,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1603541041, now seen corresponding path program 1 times [2022-11-22 02:02:07,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:07,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422553010] [2022-11-22 02:02:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:07,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:07,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:07,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:07,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422553010] [2022-11-22 02:02:07,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422553010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:07,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:07,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:07,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544490835] [2022-11-22 02:02:07,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:07,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:07,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:07,433 INFO L87 Difference]: Start difference. First operand 1500 states and 1918 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:08,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:08,378 INFO L93 Difference]: Finished difference Result 2426 states and 3199 transitions. [2022-11-22 02:02:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:08,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-11-22 02:02:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:08,383 INFO L225 Difference]: With dead ends: 2426 [2022-11-22 02:02:08,384 INFO L226 Difference]: Without dead ends: 1241 [2022-11-22 02:02:08,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:08,387 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 4816 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4816 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:08,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4816 Valid, 920 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:02:08,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2022-11-22 02:02:08,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1241. [2022-11-22 02:02:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1212 states have (on average 1.3415841584158417) internal successors, (1626), 1240 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:08,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1626 transitions. [2022-11-22 02:02:08,451 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1626 transitions. Word has length 101 [2022-11-22 02:02:08,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:08,452 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1626 transitions. [2022-11-22 02:02:08,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1626 transitions. [2022-11-22 02:02:08,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-22 02:02:08,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:08,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:08,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:02:08,456 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:08,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2013226204, now seen corresponding path program 1 times [2022-11-22 02:02:08,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:08,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857141146] [2022-11-22 02:02:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:08,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:08,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:08,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857141146] [2022-11-22 02:02:08,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857141146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:08,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:08,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:08,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879461616] [2022-11-22 02:02:08,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:08,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:08,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:08,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:08,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:08,737 INFO L87 Difference]: Start difference. First operand 1241 states and 1626 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:09,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:09,767 INFO L93 Difference]: Finished difference Result 2167 states and 2906 transitions. [2022-11-22 02:02:09,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:09,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-11-22 02:02:09,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:09,772 INFO L225 Difference]: With dead ends: 2167 [2022-11-22 02:02:09,772 INFO L226 Difference]: Without dead ends: 1137 [2022-11-22 02:02:09,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:09,785 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 4370 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4370 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:09,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4370 Valid, 778 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:02:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-11-22 02:02:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2022-11-22 02:02:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1108 states have (on average 1.358303249097473) internal successors, (1505), 1136 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:09,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1505 transitions. [2022-11-22 02:02:09,857 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1505 transitions. Word has length 102 [2022-11-22 02:02:09,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:09,859 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1505 transitions. [2022-11-22 02:02:09,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1505 transitions. [2022-11-22 02:02:09,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 02:02:09,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:09,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:09,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:02:09,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:09,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1623961495, now seen corresponding path program 1 times [2022-11-22 02:02:09,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:09,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278254852] [2022-11-22 02:02:09,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:09,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:10,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:10,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278254852] [2022-11-22 02:02:10,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278254852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:10,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:10,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:10,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128092933] [2022-11-22 02:02:10,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:10,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:10,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:10,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:10,129 INFO L87 Difference]: Start difference. First operand 1137 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:11,097 INFO L93 Difference]: Finished difference Result 2063 states and 2784 transitions. [2022-11-22 02:02:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:11,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-11-22 02:02:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:11,103 INFO L225 Difference]: With dead ends: 2063 [2022-11-22 02:02:11,104 INFO L226 Difference]: Without dead ends: 1067 [2022-11-22 02:02:11,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:11,117 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 4177 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4177 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:11,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4177 Valid, 785 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:02:11,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-11-22 02:02:11,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1067. [2022-11-22 02:02:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1038 states have (on average 1.3737957610789981) internal successors, (1426), 1066 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1426 transitions. [2022-11-22 02:02:11,189 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1426 transitions. Word has length 103 [2022-11-22 02:02:11,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:11,190 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 1426 transitions. [2022-11-22 02:02:11,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:11,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1426 transitions. [2022-11-22 02:02:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-22 02:02:11,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:11,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:11,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:02:11,194 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:11,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:11,194 INFO L85 PathProgramCache]: Analyzing trace with hash -301054445, now seen corresponding path program 1 times [2022-11-22 02:02:11,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:11,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077735681] [2022-11-22 02:02:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:11,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:11,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:11,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:11,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077735681] [2022-11-22 02:02:11,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077735681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:11,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:11,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:11,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032759612] [2022-11-22 02:02:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:11,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:11,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:11,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:11,443 INFO L87 Difference]: Start difference. First operand 1067 states and 1426 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:12,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:12,565 INFO L93 Difference]: Finished difference Result 1993 states and 2704 transitions. [2022-11-22 02:02:12,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:12,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-11-22 02:02:12,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:12,570 INFO L225 Difference]: With dead ends: 1993 [2022-11-22 02:02:12,570 INFO L226 Difference]: Without dead ends: 1047 [2022-11-22 02:02:12,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:12,572 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 4015 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:12,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4015 Valid, 637 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:02:12,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-11-22 02:02:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1047. [2022-11-22 02:02:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1018 states have (on average 1.3762278978388998) internal successors, (1401), 1046 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1401 transitions. [2022-11-22 02:02:12,648 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1401 transitions. Word has length 104 [2022-11-22 02:02:12,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:12,649 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1401 transitions. [2022-11-22 02:02:12,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:12,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1401 transitions. [2022-11-22 02:02:12,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 02:02:12,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:12,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:12,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:02:12,653 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:12,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:12,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1267053726, now seen corresponding path program 1 times [2022-11-22 02:02:12,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:12,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950217823] [2022-11-22 02:02:12,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:12,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:12,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:12,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950217823] [2022-11-22 02:02:12,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950217823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:12,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:12,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153035203] [2022-11-22 02:02:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:12,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:12,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:12,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:12,866 INFO L87 Difference]: Start difference. First operand 1047 states and 1401 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:13,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:13,850 INFO L93 Difference]: Finished difference Result 1973 states and 2678 transitions. [2022-11-22 02:02:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:13,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-11-22 02:02:13,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:13,854 INFO L225 Difference]: With dead ends: 1973 [2022-11-22 02:02:13,854 INFO L226 Difference]: Without dead ends: 1016 [2022-11-22 02:02:13,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:13,857 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 4027 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:13,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4027 Valid, 750 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:02:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-11-22 02:02:13,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2022-11-22 02:02:13,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 987 states have (on average 1.3850050658561297) internal successors, (1367), 1015 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1367 transitions. [2022-11-22 02:02:13,969 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1367 transitions. Word has length 105 [2022-11-22 02:02:13,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:13,969 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1367 transitions. [2022-11-22 02:02:13,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:13,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1367 transitions. [2022-11-22 02:02:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 02:02:13,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:13,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:13,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:02:13,973 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:13,973 INFO L85 PathProgramCache]: Analyzing trace with hash -396664639, now seen corresponding path program 1 times [2022-11-22 02:02:13,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:13,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665171403] [2022-11-22 02:02:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:13,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:14,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:14,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665171403] [2022-11-22 02:02:14,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665171403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:14,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:14,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:14,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114492135] [2022-11-22 02:02:14,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:14,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:14,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:14,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:14,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:14,162 INFO L87 Difference]: Start difference. First operand 1016 states and 1367 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:15,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:15,037 INFO L93 Difference]: Finished difference Result 1942 states and 2643 transitions. [2022-11-22 02:02:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:15,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-11-22 02:02:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:15,042 INFO L225 Difference]: With dead ends: 1942 [2022-11-22 02:02:15,042 INFO L226 Difference]: Without dead ends: 1005 [2022-11-22 02:02:15,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:15,045 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 3941 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3941 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:15,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3941 Valid, 725 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:02:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-11-22 02:02:15,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2022-11-22 02:02:15,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3872950819672132) internal successors, (1354), 1004 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1354 transitions. [2022-11-22 02:02:15,126 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1354 transitions. Word has length 106 [2022-11-22 02:02:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:15,126 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1354 transitions. [2022-11-22 02:02:15,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1354 transitions. [2022-11-22 02:02:15,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 02:02:15,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:15,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:15,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:02:15,130 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:15,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:15,130 INFO L85 PathProgramCache]: Analyzing trace with hash 10049727, now seen corresponding path program 1 times [2022-11-22 02:02:15,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:15,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501793224] [2022-11-22 02:02:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:15,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:15,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:15,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:15,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501793224] [2022-11-22 02:02:15,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501793224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:15,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:15,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:02:15,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000953411] [2022-11-22 02:02:15,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:15,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:02:15,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:15,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:02:15,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:02:15,713 INFO L87 Difference]: Start difference. First operand 1005 states and 1354 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 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) [2022-11-22 02:02:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:18,822 INFO L93 Difference]: Finished difference Result 1776 states and 2373 transitions. [2022-11-22 02:02:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:02:18,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 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 [2022-11-22 02:02:18,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:18,828 INFO L225 Difference]: With dead ends: 1776 [2022-11-22 02:02:18,828 INFO L226 Difference]: Without dead ends: 1655 [2022-11-22 02:02:18,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:02:18,829 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 6018 mSDsluCounter, 3931 mSDsCounter, 0 mSdLazyCounter, 4266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6018 SdHoareTripleChecker+Valid, 4705 SdHoareTripleChecker+Invalid, 4269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:18,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6018 Valid, 4705 Invalid, 4269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4266 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-22 02:02:18,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2022-11-22 02:02:18,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1005. [2022-11-22 02:02:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3862704918032787) internal successors, (1353), 1004 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1353 transitions. [2022-11-22 02:02:18,942 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1353 transitions. Word has length 107 [2022-11-22 02:02:18,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:18,943 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1353 transitions. [2022-11-22 02:02:18,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 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) [2022-11-22 02:02:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1353 transitions. [2022-11-22 02:02:18,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 02:02:18,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:18,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:18,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:02:18,947 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:18,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:18,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1889558665, now seen corresponding path program 1 times [2022-11-22 02:02:18,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:18,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086169339] [2022-11-22 02:02:18,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:18,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:19,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:19,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086169339] [2022-11-22 02:02:19,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086169339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:19,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:19,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:02:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542742702] [2022-11-22 02:02:19,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:19,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:02:19,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:19,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:02:19,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:19,455 INFO L87 Difference]: Start difference. First operand 1005 states and 1353 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 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) [2022-11-22 02:02:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:21,299 INFO L93 Difference]: Finished difference Result 1834 states and 2376 transitions. [2022-11-22 02:02:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:02:21,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 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 [2022-11-22 02:02:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:21,304 INFO L225 Difference]: With dead ends: 1834 [2022-11-22 02:02:21,304 INFO L226 Difference]: Without dead ends: 1287 [2022-11-22 02:02:21,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:02:21,307 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 5863 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5863 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:21,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5863 Valid, 1503 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 02:02:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-11-22 02:02:21,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1005. [2022-11-22 02:02:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3852459016393444) internal successors, (1352), 1004 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1352 transitions. [2022-11-22 02:02:21,440 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1352 transitions. Word has length 107 [2022-11-22 02:02:21,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:21,440 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1352 transitions. [2022-11-22 02:02:21,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 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) [2022-11-22 02:02:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1352 transitions. [2022-11-22 02:02:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 02:02:21,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:21,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:21,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:02:21,444 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:21,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:21,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1673844547, now seen corresponding path program 1 times [2022-11-22 02:02:21,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:21,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614322963] [2022-11-22 02:02:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:21,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:21,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:21,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614322963] [2022-11-22 02:02:21,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614322963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:21,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:21,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:21,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566217042] [2022-11-22 02:02:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:21,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:21,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:21,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:21,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:21,875 INFO L87 Difference]: Start difference. First operand 1005 states and 1352 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 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) [2022-11-22 02:02:24,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:24,507 INFO L93 Difference]: Finished difference Result 1766 states and 2363 transitions. [2022-11-22 02:02:24,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:24,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 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 [2022-11-22 02:02:24,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:24,514 INFO L225 Difference]: With dead ends: 1766 [2022-11-22 02:02:24,514 INFO L226 Difference]: Without dead ends: 1659 [2022-11-22 02:02:24,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:02:24,516 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 5895 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5895 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 2988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:24,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5895 Valid, 3345 Invalid, 2988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:02:24,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-22 02:02:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-11-22 02:02:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3842213114754098) internal successors, (1351), 1004 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1351 transitions. [2022-11-22 02:02:24,658 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1351 transitions. Word has length 107 [2022-11-22 02:02:24,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:24,659 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1351 transitions. [2022-11-22 02:02:24,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 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) [2022-11-22 02:02:24,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1351 transitions. [2022-11-22 02:02:24,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 02:02:24,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:24,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:24,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:02:24,662 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:24,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:24,663 INFO L85 PathProgramCache]: Analyzing trace with hash 124559761, now seen corresponding path program 1 times [2022-11-22 02:02:24,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:24,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181957217] [2022-11-22 02:02:24,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:24,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:25,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:25,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181957217] [2022-11-22 02:02:25,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181957217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:25,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:25,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:25,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311982490] [2022-11-22 02:02:25,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:25,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:25,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:25,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:25,125 INFO L87 Difference]: Start difference. First operand 1005 states and 1351 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 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) [2022-11-22 02:02:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:28,059 INFO L93 Difference]: Finished difference Result 1926 states and 2588 transitions. [2022-11-22 02:02:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:02:28,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 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 [2022-11-22 02:02:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:28,067 INFO L225 Difference]: With dead ends: 1926 [2022-11-22 02:02:28,067 INFO L226 Difference]: Without dead ends: 1671 [2022-11-22 02:02:28,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:02:28,069 INFO L413 NwaCegarLoop]: 1405 mSDtfsCounter, 3524 mSDsluCounter, 4257 mSDsCounter, 0 mSdLazyCounter, 4213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3524 SdHoareTripleChecker+Valid, 5662 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:28,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3524 Valid, 5662 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4213 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:02:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-11-22 02:02:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1005. [2022-11-22 02:02:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3831967213114753) internal successors, (1350), 1004 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1350 transitions. [2022-11-22 02:02:28,204 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1350 transitions. Word has length 107 [2022-11-22 02:02:28,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:28,204 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1350 transitions. [2022-11-22 02:02:28,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 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) [2022-11-22 02:02:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1350 transitions. [2022-11-22 02:02:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:28,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:28,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:28,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:02:28,208 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:28,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:28,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1528536076, now seen corresponding path program 1 times [2022-11-22 02:02:28,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:28,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338421532] [2022-11-22 02:02:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:28,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:28,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:28,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338421532] [2022-11-22 02:02:28,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338421532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:28,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:28,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:28,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933333697] [2022-11-22 02:02:28,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:28,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:28,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:28,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:28,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:28,617 INFO L87 Difference]: Start difference. First operand 1005 states and 1350 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:31,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:31,521 INFO L93 Difference]: Finished difference Result 1680 states and 2223 transitions. [2022-11-22 02:02:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:31,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:31,527 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:02:31,527 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:02:31,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:02:31,529 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 5702 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5702 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:31,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5702 Valid, 3179 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2918 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:02:31,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:02:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:02:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.382172131147541) internal successors, (1349), 1004 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1349 transitions. [2022-11-22 02:02:31,779 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1349 transitions. Word has length 109 [2022-11-22 02:02:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:31,780 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1349 transitions. [2022-11-22 02:02:31,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:31,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1349 transitions. [2022-11-22 02:02:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:31,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:31,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:31,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:02:31,785 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:31,786 INFO L85 PathProgramCache]: Analyzing trace with hash -473795284, now seen corresponding path program 1 times [2022-11-22 02:02:31,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:31,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621154939] [2022-11-22 02:02:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:31,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:32,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:32,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621154939] [2022-11-22 02:02:32,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621154939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:32,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:32,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874627393] [2022-11-22 02:02:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:32,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:32,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:32,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:32,239 INFO L87 Difference]: Start difference. First operand 1005 states and 1349 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:35,131 INFO L93 Difference]: Finished difference Result 1780 states and 2373 transitions. [2022-11-22 02:02:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:35,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:35,136 INFO L225 Difference]: With dead ends: 1780 [2022-11-22 02:02:35,136 INFO L226 Difference]: Without dead ends: 1659 [2022-11-22 02:02:35,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:02:35,138 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 6120 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 2796 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6120 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:35,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6120 Valid, 3224 Invalid, 2802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2796 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 02:02:35,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-22 02:02:35,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-11-22 02:02:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3811475409836065) internal successors, (1348), 1004 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1348 transitions. [2022-11-22 02:02:35,384 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1348 transitions. Word has length 109 [2022-11-22 02:02:35,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:35,384 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1348 transitions. [2022-11-22 02:02:35,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1348 transitions. [2022-11-22 02:02:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:35,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:35,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:35,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:02:35,390 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:35,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:35,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1405713654, now seen corresponding path program 1 times [2022-11-22 02:02:35,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:35,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970956839] [2022-11-22 02:02:35,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:35,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:35,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970956839] [2022-11-22 02:02:35,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970956839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:35,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:35,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:35,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503107770] [2022-11-22 02:02:35,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:35,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:35,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:35,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:35,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:35,880 INFO L87 Difference]: Start difference. First operand 1005 states and 1348 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:38,816 INFO L93 Difference]: Finished difference Result 1818 states and 2429 transitions. [2022-11-22 02:02:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:38,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:38,821 INFO L225 Difference]: With dead ends: 1818 [2022-11-22 02:02:38,821 INFO L226 Difference]: Without dead ends: 1647 [2022-11-22 02:02:38,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:02:38,822 INFO L413 NwaCegarLoop]: 958 mSDtfsCounter, 3516 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 3352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3516 SdHoareTripleChecker+Valid, 3778 SdHoareTripleChecker+Invalid, 3357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:38,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3516 Valid, 3778 Invalid, 3357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3352 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:02:38,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-11-22 02:02:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-11-22 02:02:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3801229508196722) internal successors, (1347), 1004 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1347 transitions. [2022-11-22 02:02:38,965 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1347 transitions. Word has length 109 [2022-11-22 02:02:38,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:38,966 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1347 transitions. [2022-11-22 02:02:38,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1347 transitions. [2022-11-22 02:02:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:38,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:38,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:38,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 02:02:38,970 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:38,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1668784820, now seen corresponding path program 1 times [2022-11-22 02:02:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:38,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453368310] [2022-11-22 02:02:38,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:38,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:39,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:39,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453368310] [2022-11-22 02:02:39,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453368310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:39,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:39,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:39,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313386136] [2022-11-22 02:02:39,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:39,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:39,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:39,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:39,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:39,491 INFO L87 Difference]: Start difference. First operand 1005 states and 1347 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:42,664 INFO L93 Difference]: Finished difference Result 1755 states and 2343 transitions. [2022-11-22 02:02:42,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:02:42,665 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:42,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:42,671 INFO L225 Difference]: With dead ends: 1755 [2022-11-22 02:02:42,671 INFO L226 Difference]: Without dead ends: 1659 [2022-11-22 02:02:42,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:02:42,672 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 4374 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 3862 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4374 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 3866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:42,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4374 Valid, 4618 Invalid, 3866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3862 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 02:02:42,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-22 02:02:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-11-22 02:02:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3790983606557377) internal successors, (1346), 1004 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1346 transitions. [2022-11-22 02:02:42,859 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1346 transitions. Word has length 109 [2022-11-22 02:02:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:42,859 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1346 transitions. [2022-11-22 02:02:42,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:42,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1346 transitions. [2022-11-22 02:02:42,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:42,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:42,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:42,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:02:42,863 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:42,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash 148522489, now seen corresponding path program 1 times [2022-11-22 02:02:42,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:42,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683169075] [2022-11-22 02:02:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:42,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:43,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:43,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683169075] [2022-11-22 02:02:43,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683169075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:43,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:43,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:43,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93124637] [2022-11-22 02:02:43,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:43,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:43,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:43,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:43,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:43,331 INFO L87 Difference]: Start difference. First operand 1005 states and 1346 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:46,535 INFO L93 Difference]: Finished difference Result 1798 states and 2406 transitions. [2022-11-22 02:02:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:46,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:46,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:46,541 INFO L225 Difference]: With dead ends: 1798 [2022-11-22 02:02:46,541 INFO L226 Difference]: Without dead ends: 1647 [2022-11-22 02:02:46,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:02:46,543 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 5238 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5238 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:46,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5238 Valid, 3885 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:02:46,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-11-22 02:02:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-11-22 02:02:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3780737704918034) internal successors, (1345), 1004 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1345 transitions. [2022-11-22 02:02:46,728 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1345 transitions. Word has length 109 [2022-11-22 02:02:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:46,728 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1345 transitions. [2022-11-22 02:02:46,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1345 transitions. [2022-11-22 02:02:46,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:46,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:46,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:46,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 02:02:46,732 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:46,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:46,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2020099149, now seen corresponding path program 1 times [2022-11-22 02:02:46,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:46,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995845984] [2022-11-22 02:02:46,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:46,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:47,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:47,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995845984] [2022-11-22 02:02:47,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995845984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:47,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:47,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:47,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382187142] [2022-11-22 02:02:47,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:47,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:47,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:47,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:47,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:47,147 INFO L87 Difference]: Start difference. First operand 1005 states and 1345 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:49,793 INFO L93 Difference]: Finished difference Result 1823 states and 2429 transitions. [2022-11-22 02:02:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:49,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:49,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:49,797 INFO L225 Difference]: With dead ends: 1823 [2022-11-22 02:02:49,797 INFO L226 Difference]: Without dead ends: 1647 [2022-11-22 02:02:49,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:02:49,798 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 5258 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 3411 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5258 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 3415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:49,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5258 Valid, 3900 Invalid, 3415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3411 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:02:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-11-22 02:02:50,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-11-22 02:02:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3770491803278688) internal successors, (1344), 1004 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1344 transitions. [2022-11-22 02:02:50,002 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1344 transitions. Word has length 109 [2022-11-22 02:02:50,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:50,002 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1344 transitions. [2022-11-22 02:02:50,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:50,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1344 transitions. [2022-11-22 02:02:50,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:50,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:50,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:50,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 02:02:50,005 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:50,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:50,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1897276727, now seen corresponding path program 1 times [2022-11-22 02:02:50,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:50,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455178994] [2022-11-22 02:02:50,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:50,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:50,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:50,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:50,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455178994] [2022-11-22 02:02:50,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455178994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:50,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:50,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:50,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947247039] [2022-11-22 02:02:50,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:50,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:50,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:50,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:50,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:50,340 INFO L87 Difference]: Start difference. First operand 1005 states and 1344 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:52,768 INFO L93 Difference]: Finished difference Result 1680 states and 2215 transitions. [2022-11-22 02:02:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:52,772 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:02:52,772 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:02:52,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:02:52,773 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 3746 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:52,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3746 Valid, 3181 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2900 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:02:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:02:52,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:02:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3760245901639345) internal successors, (1343), 1004 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1343 transitions. [2022-11-22 02:02:52,909 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1343 transitions. Word has length 109 [2022-11-22 02:02:52,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:52,910 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1343 transitions. [2022-11-22 02:02:52,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1343 transitions. [2022-11-22 02:02:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:02:52,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:52,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:52,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 02:02:52,913 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:52,913 INFO L85 PathProgramCache]: Analyzing trace with hash -211267848, now seen corresponding path program 1 times [2022-11-22 02:02:52,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:52,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552554847] [2022-11-22 02:02:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:52,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:53,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:53,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552554847] [2022-11-22 02:02:53,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552554847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:53,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:53,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:53,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792342150] [2022-11-22 02:02:53,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:53,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:53,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:53,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:53,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:53,259 INFO L87 Difference]: Start difference. First operand 1005 states and 1343 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:55,906 INFO L93 Difference]: Finished difference Result 1995 states and 2655 transitions. [2022-11-22 02:02:55,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:02:55,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:02:55,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:55,922 INFO L225 Difference]: With dead ends: 1995 [2022-11-22 02:02:55,922 INFO L226 Difference]: Without dead ends: 1671 [2022-11-22 02:02:55,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:02:55,924 INFO L413 NwaCegarLoop]: 1205 mSDtfsCounter, 4795 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 3678 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 4279 SdHoareTripleChecker+Invalid, 3683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:55,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 4279 Invalid, 3683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3678 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:02:55,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-11-22 02:02:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1005. [2022-11-22 02:02:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.375) internal successors, (1342), 1004 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:56,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1342 transitions. [2022-11-22 02:02:56,084 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1342 transitions. Word has length 109 [2022-11-22 02:02:56,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:56,085 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1342 transitions. [2022-11-22 02:02:56,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:56,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1342 transitions. [2022-11-22 02:02:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:02:56,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:56,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:56,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 02:02:56,088 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:56,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:56,088 INFO L85 PathProgramCache]: Analyzing trace with hash -177768362, now seen corresponding path program 1 times [2022-11-22 02:02:56,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:56,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651444695] [2022-11-22 02:02:56,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:56,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:56,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:56,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651444695] [2022-11-22 02:02:56,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651444695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:56,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:56,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430443063] [2022-11-22 02:02:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:56,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:56,433 INFO L87 Difference]: Start difference. First operand 1005 states and 1342 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:58,848 INFO L93 Difference]: Finished difference Result 1680 states and 2213 transitions. [2022-11-22 02:02:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:02:58,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:02:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:58,852 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:02:58,852 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:02:58,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:02:58,854 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 5666 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 2890 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5666 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:58,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5666 Valid, 3179 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2890 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:02:58,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:02:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:02:59,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3739754098360655) internal successors, (1341), 1004 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:59,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1341 transitions. [2022-11-22 02:02:59,008 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1341 transitions. Word has length 111 [2022-11-22 02:02:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:59,008 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1341 transitions. [2022-11-22 02:02:59,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1341 transitions. [2022-11-22 02:02:59,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:02:59,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:59,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:59,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 02:02:59,011 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:02:59,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:59,011 INFO L85 PathProgramCache]: Analyzing trace with hash -975546434, now seen corresponding path program 1 times [2022-11-22 02:02:59,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:59,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052867026] [2022-11-22 02:02:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:59,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:59,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:59,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052867026] [2022-11-22 02:02:59,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052867026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:59,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:59,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:02:59,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121412250] [2022-11-22 02:02:59,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:59,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:02:59,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:59,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:02:59,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:02:59,421 INFO L87 Difference]: Start difference. First operand 1005 states and 1341 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:02,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:02,411 INFO L93 Difference]: Finished difference Result 1761 states and 2341 transitions. [2022-11-22 02:03:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:03:02,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:02,415 INFO L225 Difference]: With dead ends: 1761 [2022-11-22 02:03:02,415 INFO L226 Difference]: Without dead ends: 1659 [2022-11-22 02:03:02,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:02,417 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 4453 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 4106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4453 SdHoareTripleChecker+Valid, 5265 SdHoareTripleChecker+Invalid, 4110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:02,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4453 Valid, 5265 Invalid, 4110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4106 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:03:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-22 02:03:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-11-22 02:03:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3729508196721312) internal successors, (1340), 1004 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:02,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1340 transitions. [2022-11-22 02:03:02,616 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1340 transitions. Word has length 111 [2022-11-22 02:03:02,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:02,616 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1340 transitions. [2022-11-22 02:03:02,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:02,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1340 transitions. [2022-11-22 02:03:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:02,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:02,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:02,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 02:03:02,619 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash -295038365, now seen corresponding path program 1 times [2022-11-22 02:03:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:02,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090837912] [2022-11-22 02:03:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:02,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:02,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:02,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090837912] [2022-11-22 02:03:02,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090837912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:02,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:02,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:02,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144729071] [2022-11-22 02:03:02,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:02,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:02,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:02,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:02,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:02,939 INFO L87 Difference]: Start difference. First operand 1005 states and 1340 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:05,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:05,382 INFO L93 Difference]: Finished difference Result 1676 states and 2206 transitions. [2022-11-22 02:03:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:05,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:05,387 INFO L225 Difference]: With dead ends: 1676 [2022-11-22 02:03:05,387 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:03:05,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:03:05,388 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 3710 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3710 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:05,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3710 Valid, 3188 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:03:05,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:03:05,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:03:05,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3719262295081966) internal successors, (1339), 1004 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:05,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1339 transitions. [2022-11-22 02:03:05,577 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1339 transitions. Word has length 111 [2022-11-22 02:03:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:05,578 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1339 transitions. [2022-11-22 02:03:05,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1339 transitions. [2022-11-22 02:03:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:05,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:05,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:05,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 02:03:05,580 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:05,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1626759222, now seen corresponding path program 1 times [2022-11-22 02:03:05,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:05,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281644054] [2022-11-22 02:03:05,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:05,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:05,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:05,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281644054] [2022-11-22 02:03:05,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281644054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:05,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:05,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099564241] [2022-11-22 02:03:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:05,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:05,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:05,921 INFO L87 Difference]: Start difference. First operand 1005 states and 1339 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:08,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:08,384 INFO L93 Difference]: Finished difference Result 1680 states and 2207 transitions. [2022-11-22 02:03:08,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:08,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:08,388 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:03:08,388 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:03:08,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:03:08,389 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 5649 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5649 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:08,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5649 Valid, 3181 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:03:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:03:08,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:03:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3709016393442623) internal successors, (1338), 1004 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:08,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1338 transitions. [2022-11-22 02:03:08,554 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1338 transitions. Word has length 111 [2022-11-22 02:03:08,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:08,554 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1338 transitions. [2022-11-22 02:03:08,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:08,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1338 transitions. [2022-11-22 02:03:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:08,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:08,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:08,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 02:03:08,556 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:08,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:08,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1108394253, now seen corresponding path program 1 times [2022-11-22 02:03:08,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:08,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164093617] [2022-11-22 02:03:08,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:08,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:08,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:08,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164093617] [2022-11-22 02:03:08,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164093617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:08,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:08,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:08,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978272493] [2022-11-22 02:03:08,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:08,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:08,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:08,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:08,975 INFO L87 Difference]: Start difference. First operand 1005 states and 1338 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:12,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:12,010 INFO L93 Difference]: Finished difference Result 1720 states and 2278 transitions. [2022-11-22 02:03:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:03:12,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:12,014 INFO L225 Difference]: With dead ends: 1720 [2022-11-22 02:03:12,014 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:03:12,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:12,015 INFO L413 NwaCegarLoop]: 1155 mSDtfsCounter, 4277 mSDsluCounter, 4016 mSDsCounter, 0 mSdLazyCounter, 4175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4277 SdHoareTripleChecker+Valid, 5171 SdHoareTripleChecker+Invalid, 4178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:12,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4277 Valid, 5171 Invalid, 4178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4175 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:03:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:03:12,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-11-22 02:03:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3698770491803278) internal successors, (1337), 1004 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1337 transitions. [2022-11-22 02:03:12,197 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1337 transitions. Word has length 111 [2022-11-22 02:03:12,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:12,197 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1337 transitions. [2022-11-22 02:03:12,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:12,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1337 transitions. [2022-11-22 02:03:12,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:12,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:12,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:12,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 02:03:12,199 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:12,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:12,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1161342119, now seen corresponding path program 1 times [2022-11-22 02:03:12,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:12,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736565056] [2022-11-22 02:03:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:12,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:12,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:12,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736565056] [2022-11-22 02:03:12,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736565056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:12,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:12,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:12,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383619303] [2022-11-22 02:03:12,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:12,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:12,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:12,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:12,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:12,533 INFO L87 Difference]: Start difference. First operand 1005 states and 1337 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:15,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:15,047 INFO L93 Difference]: Finished difference Result 1676 states and 2201 transitions. [2022-11-22 02:03:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:15,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:15,051 INFO L225 Difference]: With dead ends: 1676 [2022-11-22 02:03:15,051 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:03:15,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:03:15,052 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 5575 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5575 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:15,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5575 Valid, 3243 Invalid, 2929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2925 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:03:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:03:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:03:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3688524590163935) internal successors, (1336), 1004 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1336 transitions. [2022-11-22 02:03:15,229 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1336 transitions. Word has length 111 [2022-11-22 02:03:15,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:15,229 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1336 transitions. [2022-11-22 02:03:15,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:15,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1336 transitions. [2022-11-22 02:03:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:15,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:15,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:15,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 02:03:15,231 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:15,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:15,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1589926345, now seen corresponding path program 1 times [2022-11-22 02:03:15,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:15,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410399092] [2022-11-22 02:03:15,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:15,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:15,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:15,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410399092] [2022-11-22 02:03:15,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410399092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:15,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:15,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881888495] [2022-11-22 02:03:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:15,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:15,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:15,550 INFO L87 Difference]: Start difference. First operand 1005 states and 1336 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:18,131 INFO L93 Difference]: Finished difference Result 1675 states and 2198 transitions. [2022-11-22 02:03:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:18,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:18,134 INFO L225 Difference]: With dead ends: 1675 [2022-11-22 02:03:18,134 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:03:18,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:03:18,135 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 3677 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3677 SdHoareTripleChecker+Valid, 3240 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:18,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3677 Valid, 3240 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:03:18,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:03:18,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:03:18,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.367827868852459) internal successors, (1335), 1004 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:18,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1335 transitions. [2022-11-22 02:03:18,337 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1335 transitions. Word has length 111 [2022-11-22 02:03:18,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:18,337 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1335 transitions. [2022-11-22 02:03:18,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1335 transitions. [2022-11-22 02:03:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:18,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:18,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 02:03:18,338 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:18,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1856015251, now seen corresponding path program 1 times [2022-11-22 02:03:18,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:18,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125861356] [2022-11-22 02:03:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:18,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:18,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:18,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:18,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125861356] [2022-11-22 02:03:18,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125861356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:18,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:18,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:18,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347281950] [2022-11-22 02:03:18,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:18,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:18,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:18,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:18,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:18,713 INFO L87 Difference]: Start difference. First operand 1005 states and 1335 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:21,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:21,782 INFO L93 Difference]: Finished difference Result 1725 states and 2278 transitions. [2022-11-22 02:03:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:03:21,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:21,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:21,785 INFO L225 Difference]: With dead ends: 1725 [2022-11-22 02:03:21,785 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:03:21,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:21,786 INFO L413 NwaCegarLoop]: 1120 mSDtfsCounter, 4281 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:21,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 5077 Invalid, 4084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:03:21,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:03:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-11-22 02:03:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3668032786885247) internal successors, (1334), 1004 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1334 transitions. [2022-11-22 02:03:21,971 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1334 transitions. Word has length 111 [2022-11-22 02:03:21,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:21,971 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1334 transitions. [2022-11-22 02:03:21,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:21,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1334 transitions. [2022-11-22 02:03:21,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:21,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:21,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:21,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 02:03:21,973 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:21,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:21,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1059128893, now seen corresponding path program 1 times [2022-11-22 02:03:21,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:21,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122219533] [2022-11-22 02:03:21,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:21,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:22,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122219533] [2022-11-22 02:03:22,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122219533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:22,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:22,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507179760] [2022-11-22 02:03:22,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:22,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:22,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:22,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:22,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:22,321 INFO L87 Difference]: Start difference. First operand 1005 states and 1334 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:25,338 INFO L93 Difference]: Finished difference Result 1766 states and 2338 transitions. [2022-11-22 02:03:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:03:25,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:25,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:25,341 INFO L225 Difference]: With dead ends: 1766 [2022-11-22 02:03:25,341 INFO L226 Difference]: Without dead ends: 1659 [2022-11-22 02:03:25,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:25,342 INFO L413 NwaCegarLoop]: 1185 mSDtfsCounter, 4456 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 4035 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4456 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 4040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:25,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4456 Valid, 5233 Invalid, 4040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 4035 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 02:03:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-22 02:03:25,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-11-22 02:03:25,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3657786885245902) internal successors, (1333), 1004 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1333 transitions. [2022-11-22 02:03:25,542 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1333 transitions. Word has length 111 [2022-11-22 02:03:25,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:25,542 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1333 transitions. [2022-11-22 02:03:25,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1333 transitions. [2022-11-22 02:03:25,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:25,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:25,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:25,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 02:03:25,544 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:25,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1739636962, now seen corresponding path program 1 times [2022-11-22 02:03:25,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:25,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218898457] [2022-11-22 02:03:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:25,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:25,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:25,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218898457] [2022-11-22 02:03:25,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218898457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:25,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:25,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:25,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194122293] [2022-11-22 02:03:25,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:25,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:25,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:25,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:25,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:25,888 INFO L87 Difference]: Start difference. First operand 1005 states and 1333 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:29,031 INFO L93 Difference]: Finished difference Result 1720 states and 2272 transitions. [2022-11-22 02:03:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:03:29,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:29,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:29,035 INFO L225 Difference]: With dead ends: 1720 [2022-11-22 02:03:29,035 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:03:29,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:29,037 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 4261 mSDsluCounter, 4072 mSDsCounter, 0 mSdLazyCounter, 4179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4261 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 4183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:29,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4261 Valid, 5259 Invalid, 4183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4179 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:03:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:03:29,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-11-22 02:03:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3647540983606556) internal successors, (1332), 1004 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1332 transitions. [2022-11-22 02:03:29,354 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1332 transitions. Word has length 111 [2022-11-22 02:03:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:29,354 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1332 transitions. [2022-11-22 02:03:29,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1332 transitions. [2022-11-22 02:03:29,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:29,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:29,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:29,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 02:03:29,356 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:29,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:29,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2129832071, now seen corresponding path program 1 times [2022-11-22 02:03:29,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:29,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024610493] [2022-11-22 02:03:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:29,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:29,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:29,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024610493] [2022-11-22 02:03:29,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024610493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:29,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:29,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:29,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68970510] [2022-11-22 02:03:29,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:29,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:29,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:29,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:29,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:29,660 INFO L87 Difference]: Start difference. First operand 1005 states and 1332 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:32,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:32,618 INFO L93 Difference]: Finished difference Result 1852 states and 2444 transitions. [2022-11-22 02:03:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:32,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:32,621 INFO L225 Difference]: With dead ends: 1852 [2022-11-22 02:03:32,621 INFO L226 Difference]: Without dead ends: 1647 [2022-11-22 02:03:32,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:03:32,622 INFO L413 NwaCegarLoop]: 1149 mSDtfsCounter, 4660 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 3737 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4660 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 3742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:32,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4660 Valid, 4432 Invalid, 3742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3737 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:03:32,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-11-22 02:03:32,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-11-22 02:03:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3637295081967213) internal successors, (1331), 1004 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1331 transitions. [2022-11-22 02:03:32,855 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1331 transitions. Word has length 111 [2022-11-22 02:03:32,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:32,856 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1331 transitions. [2022-11-22 02:03:32,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:32,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1331 transitions. [2022-11-22 02:03:32,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:32,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:32,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:32,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 02:03:32,858 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:32,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:32,859 INFO L85 PathProgramCache]: Analyzing trace with hash -523083210, now seen corresponding path program 1 times [2022-11-22 02:03:32,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:32,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427852388] [2022-11-22 02:03:32,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:32,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:33,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:33,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427852388] [2022-11-22 02:03:33,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427852388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:33,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:33,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:33,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297243700] [2022-11-22 02:03:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:33,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:33,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:33,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:33,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:33,138 INFO L87 Difference]: Start difference. First operand 1005 states and 1331 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:35,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:35,797 INFO L93 Difference]: Finished difference Result 1680 states and 2197 transitions. [2022-11-22 02:03:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:35,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:35,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:35,816 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:03:35,816 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:03:35,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:03:35,817 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 5432 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 3020 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5432 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 3024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:35,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5432 Valid, 3367 Invalid, 3024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3020 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:03:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:03:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:03:36,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3627049180327868) internal successors, (1330), 1004 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1330 transitions. [2022-11-22 02:03:36,152 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1330 transitions. Word has length 111 [2022-11-22 02:03:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:36,153 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1330 transitions. [2022-11-22 02:03:36,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1330 transitions. [2022-11-22 02:03:36,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:03:36,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:36,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:36,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 02:03:36,155 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:36,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1483529920, now seen corresponding path program 1 times [2022-11-22 02:03:36,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:36,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487676360] [2022-11-22 02:03:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:36,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:36,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487676360] [2022-11-22 02:03:36,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487676360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:36,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:36,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:36,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160952470] [2022-11-22 02:03:36,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:36,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:36,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:36,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:36,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:36,450 INFO L87 Difference]: Start difference. First operand 1005 states and 1330 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:39,755 INFO L93 Difference]: Finished difference Result 1780 states and 2349 transitions. [2022-11-22 02:03:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:03:39,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:03:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:39,758 INFO L225 Difference]: With dead ends: 1780 [2022-11-22 02:03:39,758 INFO L226 Difference]: Without dead ends: 1659 [2022-11-22 02:03:39,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:39,760 INFO L413 NwaCegarLoop]: 1419 mSDtfsCounter, 4298 mSDsluCounter, 4483 mSDsCounter, 0 mSdLazyCounter, 4432 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4298 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 4436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:39,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4298 Valid, 5902 Invalid, 4436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4432 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:03:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-22 02:03:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-11-22 02:03:39,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3616803278688525) internal successors, (1329), 1004 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:39,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1329 transitions. [2022-11-22 02:03:39,972 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1329 transitions. Word has length 111 [2022-11-22 02:03:39,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:39,973 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1329 transitions. [2022-11-22 02:03:39,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:39,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1329 transitions. [2022-11-22 02:03:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:03:39,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:39,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:39,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 02:03:39,974 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:39,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1099101236, now seen corresponding path program 1 times [2022-11-22 02:03:39,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:39,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772612409] [2022-11-22 02:03:39,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:39,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:40,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:40,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:40,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772612409] [2022-11-22 02:03:40,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772612409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:40,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:40,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:40,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531105753] [2022-11-22 02:03:40,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:40,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:40,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:40,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:40,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:40,283 INFO L87 Difference]: Start difference. First operand 1005 states and 1329 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:42,976 INFO L93 Difference]: Finished difference Result 1670 states and 2181 transitions. [2022-11-22 02:03:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:42,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:03:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:42,980 INFO L225 Difference]: With dead ends: 1670 [2022-11-22 02:03:42,980 INFO L226 Difference]: Without dead ends: 1611 [2022-11-22 02:03:42,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:03:42,981 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 3575 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3575 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:42,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3575 Valid, 3361 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:03:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-11-22 02:03:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-11-22 02:03:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.360655737704918) internal successors, (1328), 1004 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1328 transitions. [2022-11-22 02:03:43,348 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1328 transitions. Word has length 112 [2022-11-22 02:03:43,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:43,348 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1328 transitions. [2022-11-22 02:03:43,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:43,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1328 transitions. [2022-11-22 02:03:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:03:43,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:43,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:43,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 02:03:43,354 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:43,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1873944747, now seen corresponding path program 1 times [2022-11-22 02:03:43,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:43,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453641707] [2022-11-22 02:03:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:43,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:43,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453641707] [2022-11-22 02:03:43,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453641707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:43,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:43,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:43,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540727493] [2022-11-22 02:03:43,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:43,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:43,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:43,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:43,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:43,764 INFO L87 Difference]: Start difference. First operand 1005 states and 1328 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:47,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:47,151 INFO L93 Difference]: Finished difference Result 1714 states and 2257 transitions. [2022-11-22 02:03:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:03:47,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:03:47,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:47,154 INFO L225 Difference]: With dead ends: 1714 [2022-11-22 02:03:47,154 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:03:47,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:47,155 INFO L413 NwaCegarLoop]: 1291 mSDtfsCounter, 4259 mSDsluCounter, 4257 mSDsCounter, 0 mSdLazyCounter, 4323 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 5548 SdHoareTripleChecker+Invalid, 4326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:47,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 5548 Invalid, 4326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4323 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:03:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:03:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-11-22 02:03:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3596311475409837) internal successors, (1327), 1004 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1327 transitions. [2022-11-22 02:03:47,393 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1327 transitions. Word has length 112 [2022-11-22 02:03:47,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:47,394 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1327 transitions. [2022-11-22 02:03:47,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1327 transitions. [2022-11-22 02:03:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:03:47,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:47,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:47,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 02:03:47,395 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:47,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash 498012842, now seen corresponding path program 1 times [2022-11-22 02:03:47,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:47,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347923265] [2022-11-22 02:03:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:48,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:48,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347923265] [2022-11-22 02:03:48,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347923265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:48,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:48,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:03:48,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73741520] [2022-11-22 02:03:48,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:48,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:03:48,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:48,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:03:48,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:03:48,074 INFO L87 Difference]: Start difference. First operand 1005 states and 1327 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:03:53,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:53,405 INFO L93 Difference]: Finished difference Result 2113 states and 2772 transitions. [2022-11-22 02:03:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:03:53,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 02:03:53,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:53,407 INFO L225 Difference]: With dead ends: 2113 [2022-11-22 02:03:53,408 INFO L226 Difference]: Without dead ends: 2022 [2022-11-22 02:03:53,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:03:53,409 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 8906 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 4227 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8906 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 4552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 4227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:53,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8906 Valid, 4788 Invalid, 4552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 4227 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 02:03:53,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-11-22 02:03:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1009. [2022-11-22 02:03:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3581632653061224) internal successors, (1331), 1008 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1331 transitions. [2022-11-22 02:03:53,719 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1331 transitions. Word has length 113 [2022-11-22 02:03:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:53,719 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1331 transitions. [2022-11-22 02:03:53,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:03:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1331 transitions. [2022-11-22 02:03:53,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:03:53,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:53,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:53,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 02:03:53,722 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:53,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:53,723 INFO L85 PathProgramCache]: Analyzing trace with hash 89167614, now seen corresponding path program 1 times [2022-11-22 02:03:53,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:53,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416362058] [2022-11-22 02:03:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:53,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:54,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:54,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:54,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416362058] [2022-11-22 02:03:54,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416362058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:54,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:54,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:54,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376350761] [2022-11-22 02:03:54,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:54,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:54,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:54,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:54,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:54,181 INFO L87 Difference]: Start difference. First operand 1009 states and 1331 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:03:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:58,097 INFO L93 Difference]: Finished difference Result 1684 states and 2196 transitions. [2022-11-22 02:03:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:03:58,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:58,100 INFO L225 Difference]: With dead ends: 1684 [2022-11-22 02:03:58,100 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:03:58,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:03:58,101 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 5347 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:58,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5347 Valid, 3410 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 02:03:58,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:03:58,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:03:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3571428571428572) internal successors, (1330), 1008 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1330 transitions. [2022-11-22 02:03:58,459 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1330 transitions. Word has length 113 [2022-11-22 02:03:58,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:58,459 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1330 transitions. [2022-11-22 02:03:58,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:03:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1330 transitions. [2022-11-22 02:03:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:03:58,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:58,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:58,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 02:03:58,462 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:03:58,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:58,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1092664937, now seen corresponding path program 1 times [2022-11-22 02:03:58,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:58,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874648640] [2022-11-22 02:03:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:58,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:58,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:58,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874648640] [2022-11-22 02:03:58,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874648640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:58,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:58,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:03:58,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797451215] [2022-11-22 02:03:58,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:58,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:03:58,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:58,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:03:58,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:03:58,764 INFO L87 Difference]: Start difference. First operand 1009 states and 1330 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:01,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:01,667 INFO L93 Difference]: Finished difference Result 1680 states and 2191 transitions. [2022-11-22 02:04:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:01,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:01,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:01,670 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:04:01,670 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:04:01,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:01,671 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 3538 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:01,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 3419 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:04:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:04:01,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:04:01,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3561224489795918) internal successors, (1329), 1008 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:01,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1329 transitions. [2022-11-22 02:04:01,942 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1329 transitions. Word has length 113 [2022-11-22 02:04:01,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:01,943 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1329 transitions. [2022-11-22 02:04:01,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:01,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1329 transitions. [2022-11-22 02:04:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:01,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:01,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:01,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 02:04:01,945 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:01,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:01,946 INFO L85 PathProgramCache]: Analyzing trace with hash -56393821, now seen corresponding path program 1 times [2022-11-22 02:04:01,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:01,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986414619] [2022-11-22 02:04:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:01,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:02,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:02,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986414619] [2022-11-22 02:04:02,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986414619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:02,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:02,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:02,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721579098] [2022-11-22 02:04:02,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:02,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:02,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:02,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:02,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:02,248 INFO L87 Difference]: Start difference. First operand 1009 states and 1329 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:05,487 INFO L93 Difference]: Finished difference Result 1725 states and 2266 transitions. [2022-11-22 02:04:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:05,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:05,490 INFO L225 Difference]: With dead ends: 1725 [2022-11-22 02:04:05,490 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:04:05,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:05,491 INFO L413 NwaCegarLoop]: 1041 mSDtfsCounter, 4570 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 3790 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 4390 SdHoareTripleChecker+Invalid, 3793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:05,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 4390 Invalid, 3793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3790 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:04:05,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:04:05,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-11-22 02:04:05,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3551020408163266) internal successors, (1328), 1008 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1328 transitions. [2022-11-22 02:04:05,779 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1328 transitions. Word has length 113 [2022-11-22 02:04:05,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:05,779 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1328 transitions. [2022-11-22 02:04:05,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1328 transitions. [2022-11-22 02:04:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:05,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:05,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:05,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-22 02:04:05,781 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:05,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1516492166, now seen corresponding path program 1 times [2022-11-22 02:04:05,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:05,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115209687] [2022-11-22 02:04:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:06,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:06,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115209687] [2022-11-22 02:04:06,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115209687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:06,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:06,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:06,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326346468] [2022-11-22 02:04:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:06,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:06,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:06,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:06,075 INFO L87 Difference]: Start difference. First operand 1009 states and 1328 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:09,264 INFO L93 Difference]: Finished difference Result 1725 states and 2265 transitions. [2022-11-22 02:04:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:09,265 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:09,266 INFO L225 Difference]: With dead ends: 1725 [2022-11-22 02:04:09,267 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:04:09,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:09,267 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 3159 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 4301 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:09,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3159 Valid, 4301 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:04:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:04:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-11-22 02:04:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3540816326530611) internal successors, (1327), 1008 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1327 transitions. [2022-11-22 02:04:09,563 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1327 transitions. Word has length 113 [2022-11-22 02:04:09,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:09,563 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1327 transitions. [2022-11-22 02:04:09,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:09,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1327 transitions. [2022-11-22 02:04:09,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:09,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:09,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:09,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-22 02:04:09,566 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:09,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:09,566 INFO L85 PathProgramCache]: Analyzing trace with hash -367433408, now seen corresponding path program 1 times [2022-11-22 02:04:09,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:09,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957446772] [2022-11-22 02:04:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:09,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:09,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:09,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957446772] [2022-11-22 02:04:09,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957446772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:09,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:09,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311794762] [2022-11-22 02:04:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:09,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:09,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:09,853 INFO L87 Difference]: Start difference. First operand 1009 states and 1327 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:12,851 INFO L93 Difference]: Finished difference Result 1680 states and 2188 transitions. [2022-11-22 02:04:12,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:12,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:12,853 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:04:12,853 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:04:12,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:12,854 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 3462 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3462 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:12,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3462 Valid, 3571 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:04:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:04:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:04:13,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.353061224489796) internal successors, (1326), 1008 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:13,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1326 transitions. [2022-11-22 02:04:13,193 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1326 transitions. Word has length 113 [2022-11-22 02:04:13,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:13,193 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1326 transitions. [2022-11-22 02:04:13,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:13,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1326 transitions. [2022-11-22 02:04:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:13,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:13,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:13,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-22 02:04:13,196 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:13,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:13,196 INFO L85 PathProgramCache]: Analyzing trace with hash 999406562, now seen corresponding path program 1 times [2022-11-22 02:04:13,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:13,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92426191] [2022-11-22 02:04:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:13,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:13,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:13,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92426191] [2022-11-22 02:04:13,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92426191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:13,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:13,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:13,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207349501] [2022-11-22 02:04:13,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:13,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:13,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:13,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:13,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:13,503 INFO L87 Difference]: Start difference. First operand 1009 states and 1326 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:16,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:16,540 INFO L93 Difference]: Finished difference Result 1674 states and 2178 transitions. [2022-11-22 02:04:16,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:16,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:16,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:16,543 INFO L225 Difference]: With dead ends: 1674 [2022-11-22 02:04:16,543 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:04:16,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:16,544 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 5176 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 3137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5176 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 3141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:16,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5176 Valid, 3577 Invalid, 3141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3137 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:04:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:04:16,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:04:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3520408163265305) internal successors, (1325), 1008 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:16,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1325 transitions. [2022-11-22 02:04:16,853 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1325 transitions. Word has length 113 [2022-11-22 02:04:16,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:16,854 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1325 transitions. [2022-11-22 02:04:16,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1325 transitions. [2022-11-22 02:04:16,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:16,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:16,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:16,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-22 02:04:16,856 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:16,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:16,857 INFO L85 PathProgramCache]: Analyzing trace with hash -859344288, now seen corresponding path program 1 times [2022-11-22 02:04:16,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:16,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892220162] [2022-11-22 02:04:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:16,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:17,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:17,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892220162] [2022-11-22 02:04:17,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892220162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:17,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:17,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:17,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652187610] [2022-11-22 02:04:17,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:17,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:17,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:17,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:17,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:17,193 INFO L87 Difference]: Start difference. First operand 1009 states and 1325 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:20,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:20,722 INFO L93 Difference]: Finished difference Result 1715 states and 2247 transitions. [2022-11-22 02:04:20,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:04:20,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:20,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:20,724 INFO L225 Difference]: With dead ends: 1715 [2022-11-22 02:04:20,725 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:04:20,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:04:20,725 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 4206 mSDsluCounter, 4204 mSDsCounter, 0 mSdLazyCounter, 4242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4206 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 4245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:20,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4206 Valid, 5461 Invalid, 4245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4242 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:04:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:04:21,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-11-22 02:04:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3510204081632653) internal successors, (1324), 1008 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1324 transitions. [2022-11-22 02:04:21,032 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1324 transitions. Word has length 113 [2022-11-22 02:04:21,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:21,032 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1324 transitions. [2022-11-22 02:04:21,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:21,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1324 transitions. [2022-11-22 02:04:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:21,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:21,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:21,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-22 02:04:21,034 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:21,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:21,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1072781494, now seen corresponding path program 1 times [2022-11-22 02:04:21,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:21,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312193505] [2022-11-22 02:04:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:21,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:21,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:21,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312193505] [2022-11-22 02:04:21,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312193505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:21,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:21,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:21,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009328362] [2022-11-22 02:04:21,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:21,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:21,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:21,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:21,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:21,299 INFO L87 Difference]: Start difference. First operand 1009 states and 1324 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:24,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:24,545 INFO L93 Difference]: Finished difference Result 1725 states and 2258 transitions. [2022-11-22 02:04:24,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:24,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:24,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:24,547 INFO L225 Difference]: With dead ends: 1725 [2022-11-22 02:04:24,547 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:04:24,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:24,548 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 4721 mSDsluCounter, 3256 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4721 SdHoareTripleChecker+Valid, 4295 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:24,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4721 Valid, 4295 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:04:24,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:04:24,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-11-22 02:04:24,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.35) internal successors, (1323), 1008 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1323 transitions. [2022-11-22 02:04:24,967 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1323 transitions. Word has length 113 [2022-11-22 02:04:24,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:24,967 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1323 transitions. [2022-11-22 02:04:24,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:24,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1323 transitions. [2022-11-22 02:04:24,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:24,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:24,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:24,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-22 02:04:24,970 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:24,970 INFO L85 PathProgramCache]: Analyzing trace with hash 76277264, now seen corresponding path program 1 times [2022-11-22 02:04:24,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:24,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982550595] [2022-11-22 02:04:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:24,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:25,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:25,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982550595] [2022-11-22 02:04:25,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982550595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:25,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:25,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:25,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995881166] [2022-11-22 02:04:25,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:25,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:25,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:25,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:25,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:25,275 INFO L87 Difference]: Start difference. First operand 1009 states and 1323 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:28,589 INFO L93 Difference]: Finished difference Result 1680 states and 2184 transitions. [2022-11-22 02:04:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:28,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:28,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:28,591 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:04:28,591 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:04:28,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:04:28,592 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 4982 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 3324 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:28,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4982 Valid, 3756 Invalid, 3327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3324 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:04:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:04:28,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:04:28,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3489795918367347) internal successors, (1322), 1008 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1322 transitions. [2022-11-22 02:04:28,900 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1322 transitions. Word has length 113 [2022-11-22 02:04:28,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:28,900 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1322 transitions. [2022-11-22 02:04:28,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1322 transitions. [2022-11-22 02:04:28,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:28,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:28,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:28,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-22 02:04:28,902 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:28,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:28,902 INFO L85 PathProgramCache]: Analyzing trace with hash 277160724, now seen corresponding path program 1 times [2022-11-22 02:04:28,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:28,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240265097] [2022-11-22 02:04:28,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:28,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:29,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:29,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240265097] [2022-11-22 02:04:29,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240265097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:29,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:29,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:29,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727597513] [2022-11-22 02:04:29,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:29,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:29,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:29,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:29,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:29,170 INFO L87 Difference]: Start difference. First operand 1009 states and 1322 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:32,371 INFO L93 Difference]: Finished difference Result 1680 states and 2183 transitions. [2022-11-22 02:04:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:32,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:32,373 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 02:04:32,374 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:04:32,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:32,374 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 3348 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3348 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 3299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:32,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3348 Valid, 3732 Invalid, 3299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:04:32,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:04:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:04:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3479591836734695) internal successors, (1321), 1008 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1321 transitions. [2022-11-22 02:04:32,701 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1321 transitions. Word has length 113 [2022-11-22 02:04:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:32,701 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1321 transitions. [2022-11-22 02:04:32,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:32,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1321 transitions. [2022-11-22 02:04:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:32,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:32,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:32,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-22 02:04:32,704 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1104510179, now seen corresponding path program 1 times [2022-11-22 02:04:32,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:32,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252967510] [2022-11-22 02:04:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:32,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:32,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:32,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:32,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252967510] [2022-11-22 02:04:32,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252967510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:32,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:32,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749710787] [2022-11-22 02:04:32,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:32,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:32,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:32,951 INFO L87 Difference]: Start difference. First operand 1009 states and 1321 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:36,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:36,123 INFO L93 Difference]: Finished difference Result 1679 states and 2180 transitions. [2022-11-22 02:04:36,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:36,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:36,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:36,132 INFO L225 Difference]: With dead ends: 1679 [2022-11-22 02:04:36,133 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:04:36,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:36,134 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 5061 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 3210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5061 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 3214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:36,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5061 Valid, 3679 Invalid, 3214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3210 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:04:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:04:36,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:04:36,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.346938775510204) internal successors, (1320), 1008 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:36,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1320 transitions. [2022-11-22 02:04:36,526 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1320 transitions. Word has length 113 [2022-11-22 02:04:36,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:36,526 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1320 transitions. [2022-11-22 02:04:36,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1320 transitions. [2022-11-22 02:04:36,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:36,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:36,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:36,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-22 02:04:36,528 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:36,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:36,528 INFO L85 PathProgramCache]: Analyzing trace with hash -809939846, now seen corresponding path program 1 times [2022-11-22 02:04:36,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:36,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891167344] [2022-11-22 02:04:36,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:36,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:36,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:36,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891167344] [2022-11-22 02:04:36,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891167344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:36,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:36,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:36,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808075562] [2022-11-22 02:04:36,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:36,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:36,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:36,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:36,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:36,762 INFO L87 Difference]: Start difference. First operand 1009 states and 1320 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:39,953 INFO L93 Difference]: Finished difference Result 1679 states and 2179 transitions. [2022-11-22 02:04:39,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:39,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:39,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:39,956 INFO L225 Difference]: With dead ends: 1679 [2022-11-22 02:04:39,956 INFO L226 Difference]: Without dead ends: 1615 [2022-11-22 02:04:39,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:39,958 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 5058 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 3206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:39,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 3679 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3206 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:04:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-11-22 02:04:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-11-22 02:04:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3459183673469388) internal successors, (1319), 1008 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:40,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1319 transitions. [2022-11-22 02:04:40,277 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1319 transitions. Word has length 113 [2022-11-22 02:04:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:40,277 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1319 transitions. [2022-11-22 02:04:40,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1319 transitions. [2022-11-22 02:04:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:40,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:40,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:40,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-22 02:04:40,278 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:40,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:40,279 INFO L85 PathProgramCache]: Analyzing trace with hash -856470652, now seen corresponding path program 1 times [2022-11-22 02:04:40,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:40,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737765548] [2022-11-22 02:04:40,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:40,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:40,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:40,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737765548] [2022-11-22 02:04:40,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737765548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:40,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:40,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:04:40,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852642085] [2022-11-22 02:04:40,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:40,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:04:40,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:40,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:04:40,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:04:40,693 INFO L87 Difference]: Start difference. First operand 1009 states and 1319 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:04:46,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:46,544 INFO L93 Difference]: Finished difference Result 2085 states and 2725 transitions. [2022-11-22 02:04:46,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:04:46,545 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 02:04:46,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:46,547 INFO L225 Difference]: With dead ends: 2085 [2022-11-22 02:04:46,547 INFO L226 Difference]: Without dead ends: 2008 [2022-11-22 02:04:46,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:04:46,548 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 8333 mSDsluCounter, 4742 mSDsCounter, 0 mSdLazyCounter, 5165 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8333 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 5165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:46,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8333 Valid, 5829 Invalid, 5489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 5165 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 02:04:46,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2022-11-22 02:04:46,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1013. [2022-11-22 02:04:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 984 states have (on average 1.3445121951219512) internal successors, (1323), 1012 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1323 transitions. [2022-11-22 02:04:46,877 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1323 transitions. Word has length 113 [2022-11-22 02:04:46,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:46,877 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1323 transitions. [2022-11-22 02:04:46,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:04:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1323 transitions. [2022-11-22 02:04:46,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:46,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:46,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:46,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-22 02:04:46,879 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:46,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:46,879 INFO L85 PathProgramCache]: Analyzing trace with hash 713173466, now seen corresponding path program 1 times [2022-11-22 02:04:46,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:46,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513500215] [2022-11-22 02:04:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:46,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:47,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:47,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513500215] [2022-11-22 02:04:47,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513500215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:47,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:47,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:47,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107191663] [2022-11-22 02:04:47,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:47,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:47,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:47,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:47,164 INFO L87 Difference]: Start difference. First operand 1013 states and 1323 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:50,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:50,493 INFO L93 Difference]: Finished difference Result 1688 states and 2186 transitions. [2022-11-22 02:04:50,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:50,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:50,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:50,495 INFO L225 Difference]: With dead ends: 1688 [2022-11-22 02:04:50,495 INFO L226 Difference]: Without dead ends: 1619 [2022-11-22 02:04:50,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:50,496 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 3345 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3345 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 3278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:50,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3345 Valid, 3728 Invalid, 3278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:04:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-11-22 02:04:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1013. [2022-11-22 02:04:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 984 states have (on average 1.3434959349593496) internal successors, (1322), 1012 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:50,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1322 transitions. [2022-11-22 02:04:50,904 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1322 transitions. Word has length 113 [2022-11-22 02:04:50,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:50,904 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1322 transitions. [2022-11-22 02:04:50,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:50,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1322 transitions. [2022-11-22 02:04:50,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:50,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:50,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:50,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-22 02:04:50,906 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:50,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1349460328, now seen corresponding path program 1 times [2022-11-22 02:04:50,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:50,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266794807] [2022-11-22 02:04:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:50,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:51,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:51,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266794807] [2022-11-22 02:04:51,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266794807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:51,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:51,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:51,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753051053] [2022-11-22 02:04:51,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:51,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:04:51,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:51,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:04:51,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:04:51,133 INFO L87 Difference]: Start difference. First operand 1013 states and 1322 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:54,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:54,423 INFO L93 Difference]: Finished difference Result 1684 states and 2181 transitions. [2022-11-22 02:04:54,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:04:54,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:04:54,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:54,425 INFO L225 Difference]: With dead ends: 1684 [2022-11-22 02:04:54,425 INFO L226 Difference]: Without dead ends: 1619 [2022-11-22 02:04:54,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:04:54,426 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 3396 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 3189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:54,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 3674 Invalid, 3193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3189 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:04:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-11-22 02:04:54,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1013. [2022-11-22 02:04:54,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 984 states have (on average 1.342479674796748) internal successors, (1321), 1012 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1321 transitions. [2022-11-22 02:04:54,782 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1321 transitions. Word has length 113 [2022-11-22 02:04:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:54,782 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1321 transitions. [2022-11-22 02:04:54,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:04:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1321 transitions. [2022-11-22 02:04:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:04:54,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:54,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:54,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-22 02:04:54,784 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:04:54,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:54,784 INFO L85 PathProgramCache]: Analyzing trace with hash 753916519, now seen corresponding path program 1 times [2022-11-22 02:04:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:54,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741617709] [2022-11-22 02:04:54,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:54,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:55,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:55,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741617709] [2022-11-22 02:04:55,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741617709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:55,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:55,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:04:55,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381154648] [2022-11-22 02:04:55,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:55,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:04:55,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:55,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:04:55,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:04:55,193 INFO L87 Difference]: Start difference. First operand 1013 states and 1321 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:05:01,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:01,070 INFO L93 Difference]: Finished difference Result 2112 states and 2745 transitions. [2022-11-22 02:05:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:05:01,071 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 02:05:01,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:01,073 INFO L225 Difference]: With dead ends: 2112 [2022-11-22 02:05:01,074 INFO L226 Difference]: Without dead ends: 2021 [2022-11-22 02:05:01,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:05:01,075 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 8122 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 4282 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8122 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 4607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 4282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:01,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8122 Valid, 4831 Invalid, 4607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 4282 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 02:05:01,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2022-11-22 02:05:01,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1017. [2022-11-22 02:05:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 988 states have (on average 1.341093117408907) internal successors, (1325), 1016 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1325 transitions. [2022-11-22 02:05:01,427 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1325 transitions. Word has length 113 [2022-11-22 02:05:01,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:01,428 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1325 transitions. [2022-11-22 02:05:01,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:05:01,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1325 transitions. [2022-11-22 02:05:01,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:01,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:01,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:01,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-22 02:05:01,429 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:01,430 INFO L85 PathProgramCache]: Analyzing trace with hash 345071291, now seen corresponding path program 1 times [2022-11-22 02:05:01,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:01,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996388815] [2022-11-22 02:05:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:01,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:01,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996388815] [2022-11-22 02:05:01,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996388815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:01,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:01,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:01,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982721403] [2022-11-22 02:05:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:01,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:01,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:01,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:01,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:01,723 INFO L87 Difference]: Start difference. First operand 1017 states and 1325 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:05,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:05,355 INFO L93 Difference]: Finished difference Result 1692 states and 2187 transitions. [2022-11-22 02:05:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:05,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:05,358 INFO L225 Difference]: With dead ends: 1692 [2022-11-22 02:05:05,358 INFO L226 Difference]: Without dead ends: 1623 [2022-11-22 02:05:05,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:05:05,359 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 5059 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 3186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:05,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 3672 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3186 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:05:05,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-11-22 02:05:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1017. [2022-11-22 02:05:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 988 states have (on average 1.3400809716599191) internal successors, (1324), 1016 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1324 transitions. [2022-11-22 02:05:05,740 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1324 transitions. Word has length 113 [2022-11-22 02:05:05,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:05,741 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1324 transitions. [2022-11-22 02:05:05,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1324 transitions. [2022-11-22 02:05:05,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:05,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:05,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:05,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-22 02:05:05,742 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:05,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:05,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1259696775, now seen corresponding path program 1 times [2022-11-22 02:05:05,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:05,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730280797] [2022-11-22 02:05:05,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:05,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:06,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:06,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730280797] [2022-11-22 02:05:06,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730280797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:06,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:06,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:05:06,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347623782] [2022-11-22 02:05:06,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:06,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:05:06,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:06,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:05:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:05:06,215 INFO L87 Difference]: Start difference. First operand 1017 states and 1324 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:05:13,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:13,100 INFO L93 Difference]: Finished difference Result 2095 states and 2727 transitions. [2022-11-22 02:05:13,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:05:13,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 02:05:13,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:13,103 INFO L225 Difference]: With dead ends: 2095 [2022-11-22 02:05:13,103 INFO L226 Difference]: Without dead ends: 2013 [2022-11-22 02:05:13,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:05:13,104 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 9140 mSDsluCounter, 3511 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9140 SdHoareTripleChecker+Valid, 4546 SdHoareTripleChecker+Invalid, 4285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:13,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9140 Valid, 4546 Invalid, 4285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [347 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-22 02:05:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-11-22 02:05:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1021. [2022-11-22 02:05:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3387096774193548) internal successors, (1328), 1020 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1328 transitions. [2022-11-22 02:05:13,597 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1328 transitions. Word has length 113 [2022-11-22 02:05:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:13,597 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1328 transitions. [2022-11-22 02:05:13,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:05:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1328 transitions. [2022-11-22 02:05:13,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:13,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:13,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:13,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-22 02:05:13,599 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:13,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:13,600 INFO L85 PathProgramCache]: Analyzing trace with hash -110638017, now seen corresponding path program 1 times [2022-11-22 02:05:13,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:13,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791885628] [2022-11-22 02:05:13,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:13,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:13,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791885628] [2022-11-22 02:05:13,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791885628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:13,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:13,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:13,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738947013] [2022-11-22 02:05:13,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:13,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:13,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:13,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:13,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:13,902 INFO L87 Difference]: Start difference. First operand 1021 states and 1328 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:18,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:18,209 INFO L93 Difference]: Finished difference Result 1692 states and 2187 transitions. [2022-11-22 02:05:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:18,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:18,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:18,211 INFO L225 Difference]: With dead ends: 1692 [2022-11-22 02:05:18,211 INFO L226 Difference]: Without dead ends: 1627 [2022-11-22 02:05:18,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:05:18,211 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 4961 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 3286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4961 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:18,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4961 Valid, 3756 Invalid, 3289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3286 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:05:18,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-11-22 02:05:18,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-11-22 02:05:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3377016129032258) internal successors, (1327), 1020 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:18,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1327 transitions. [2022-11-22 02:05:18,600 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1327 transitions. Word has length 113 [2022-11-22 02:05:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:18,601 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1327 transitions. [2022-11-22 02:05:18,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1327 transitions. [2022-11-22 02:05:18,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:18,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:18,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:18,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-22 02:05:18,603 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:18,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:18,604 INFO L85 PathProgramCache]: Analyzing trace with hash 90245443, now seen corresponding path program 1 times [2022-11-22 02:05:18,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:18,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468822681] [2022-11-22 02:05:18,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:18,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:18,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:18,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:18,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468822681] [2022-11-22 02:05:18,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468822681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:18,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:18,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:18,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809122067] [2022-11-22 02:05:18,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:18,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:18,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:18,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:18,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:18,812 INFO L87 Difference]: Start difference. First operand 1021 states and 1327 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:22,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:22,488 INFO L93 Difference]: Finished difference Result 1692 states and 2186 transitions. [2022-11-22 02:05:22,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:22,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:22,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:22,491 INFO L225 Difference]: With dead ends: 1692 [2022-11-22 02:05:22,491 INFO L226 Difference]: Without dead ends: 1627 [2022-11-22 02:05:22,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:05:22,492 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 3334 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 3257 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3334 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:22,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3334 Valid, 3732 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3257 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:05:22,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-11-22 02:05:22,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-11-22 02:05:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3366935483870968) internal successors, (1326), 1020 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:22,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1326 transitions. [2022-11-22 02:05:22,872 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1326 transitions. Word has length 113 [2022-11-22 02:05:22,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:22,873 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1326 transitions. [2022-11-22 02:05:22,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:22,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1326 transitions. [2022-11-22 02:05:22,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:22,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:22,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:22,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-22 02:05:22,874 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:22,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:22,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1075080690, now seen corresponding path program 1 times [2022-11-22 02:05:22,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:22,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41119305] [2022-11-22 02:05:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:22,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:23,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41119305] [2022-11-22 02:05:23,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41119305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:23,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:23,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:23,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741781494] [2022-11-22 02:05:23,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:23,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:23,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:23,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:23,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:23,077 INFO L87 Difference]: Start difference. First operand 1021 states and 1326 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:26,606 INFO L93 Difference]: Finished difference Result 1691 states and 2183 transitions. [2022-11-22 02:05:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:26,607 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:26,608 INFO L225 Difference]: With dead ends: 1691 [2022-11-22 02:05:26,608 INFO L226 Difference]: Without dead ends: 1627 [2022-11-22 02:05:26,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:05:26,609 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 3380 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 3172 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 3176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:26,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 3679 Invalid, 3176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3172 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:05:26,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-11-22 02:05:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-11-22 02:05:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3356854838709677) internal successors, (1325), 1020 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1325 transitions. [2022-11-22 02:05:27,000 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1325 transitions. Word has length 113 [2022-11-22 02:05:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:27,000 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1325 transitions. [2022-11-22 02:05:27,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1325 transitions. [2022-11-22 02:05:27,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:27,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:27,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:27,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-22 02:05:27,003 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:27,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:27,004 INFO L85 PathProgramCache]: Analyzing trace with hash -693878534, now seen corresponding path program 1 times [2022-11-22 02:05:27,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:27,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149370508] [2022-11-22 02:05:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:27,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:27,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:27,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149370508] [2022-11-22 02:05:27,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149370508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:27,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:27,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151906185] [2022-11-22 02:05:27,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:27,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:27,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:27,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:27,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:27,233 INFO L87 Difference]: Start difference. First operand 1021 states and 1325 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:30,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:30,818 INFO L93 Difference]: Finished difference Result 1734 states and 2249 transitions. [2022-11-22 02:05:30,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:30,818 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:30,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:30,820 INFO L225 Difference]: With dead ends: 1734 [2022-11-22 02:05:30,820 INFO L226 Difference]: Without dead ends: 1643 [2022-11-22 02:05:30,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:05:30,821 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 3344 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 3269 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3344 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 3274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:30,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3344 Valid, 3987 Invalid, 3274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3269 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:05:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-22 02:05:31,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1021. [2022-11-22 02:05:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3346774193548387) internal successors, (1324), 1020 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1324 transitions. [2022-11-22 02:05:31,225 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1324 transitions. Word has length 113 [2022-11-22 02:05:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:31,226 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1324 transitions. [2022-11-22 02:05:31,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1324 transitions. [2022-11-22 02:05:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:31,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:31,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:31,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-22 02:05:31,227 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:31,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1102723762, now seen corresponding path program 1 times [2022-11-22 02:05:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:31,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45008669] [2022-11-22 02:05:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:31,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:31,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:31,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45008669] [2022-11-22 02:05:31,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45008669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:31,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:31,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:31,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191590401] [2022-11-22 02:05:31,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:31,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:31,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:31,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:31,472 INFO L87 Difference]: Start difference. First operand 1021 states and 1324 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:35,229 INFO L93 Difference]: Finished difference Result 1696 states and 2186 transitions. [2022-11-22 02:05:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:35,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:35,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:35,231 INFO L225 Difference]: With dead ends: 1696 [2022-11-22 02:05:35,231 INFO L226 Difference]: Without dead ends: 1627 [2022-11-22 02:05:35,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:05:35,232 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 4960 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 3223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4960 SdHoareTripleChecker+Valid, 3774 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:35,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4960 Valid, 3774 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3223 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:05:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-11-22 02:05:35,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-11-22 02:05:35,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3336693548387097) internal successors, (1323), 1020 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1323 transitions. [2022-11-22 02:05:35,618 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1323 transitions. Word has length 113 [2022-11-22 02:05:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:35,618 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1323 transitions. [2022-11-22 02:05:35,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:35,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1323 transitions. [2022-11-22 02:05:35,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:35,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:35,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:35,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-22 02:05:35,620 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:35,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1257063176, now seen corresponding path program 1 times [2022-11-22 02:05:35,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:35,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435334565] [2022-11-22 02:05:35,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:35,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:36,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:36,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435334565] [2022-11-22 02:05:36,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435334565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:36,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:36,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:05:36,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377528704] [2022-11-22 02:05:36,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:36,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:05:36,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:36,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:05:36,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:05:36,046 INFO L87 Difference]: Start difference. First operand 1021 states and 1323 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:05:42,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:42,418 INFO L93 Difference]: Finished difference Result 2267 states and 2931 transitions. [2022-11-22 02:05:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:05:42,419 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 02:05:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:42,420 INFO L225 Difference]: With dead ends: 2267 [2022-11-22 02:05:42,421 INFO L226 Difference]: Without dead ends: 2131 [2022-11-22 02:05:42,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:05:42,421 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 8179 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 4544 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8179 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 4850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 4544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:42,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8179 Valid, 5293 Invalid, 4850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 4544 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 02:05:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2022-11-22 02:05:42,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1025. [2022-11-22 02:05:42,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3323293172690762) internal successors, (1327), 1024 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:42,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1327 transitions. [2022-11-22 02:05:42,839 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1327 transitions. Word has length 113 [2022-11-22 02:05:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:42,839 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1327 transitions. [2022-11-22 02:05:42,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:05:42,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1327 transitions. [2022-11-22 02:05:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:42,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:42,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:42,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-22 02:05:42,840 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:42,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1190152855, now seen corresponding path program 1 times [2022-11-22 02:05:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:42,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894874663] [2022-11-22 02:05:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:42,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:43,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:43,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894874663] [2022-11-22 02:05:43,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894874663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:43,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:43,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824576056] [2022-11-22 02:05:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:43,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:43,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:43,103 INFO L87 Difference]: Start difference. First operand 1025 states and 1327 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:47,092 INFO L93 Difference]: Finished difference Result 1729 states and 2242 transitions. [2022-11-22 02:05:47,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:05:47,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:47,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:47,094 INFO L225 Difference]: With dead ends: 1729 [2022-11-22 02:05:47,094 INFO L226 Difference]: Without dead ends: 1647 [2022-11-22 02:05:47,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:05:47,098 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 4346 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 3788 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 4963 SdHoareTripleChecker+Invalid, 3792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:47,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4346 Valid, 4963 Invalid, 3792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3788 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:05:47,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-11-22 02:05:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1025. [2022-11-22 02:05:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3313253012048192) internal successors, (1326), 1024 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1326 transitions. [2022-11-22 02:05:47,570 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1326 transitions. Word has length 113 [2022-11-22 02:05:47,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:47,570 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1326 transitions. [2022-11-22 02:05:47,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1326 transitions. [2022-11-22 02:05:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:47,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:47,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:47,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-22 02:05:47,572 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:47,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:47,573 INFO L85 PathProgramCache]: Analyzing trace with hash -41094097, now seen corresponding path program 1 times [2022-11-22 02:05:47,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:47,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332415590] [2022-11-22 02:05:47,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:47,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:47,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:47,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:47,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332415590] [2022-11-22 02:05:47,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332415590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:47,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:47,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:47,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876127486] [2022-11-22 02:05:47,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:47,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:47,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:47,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:47,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:47,856 INFO L87 Difference]: Start difference. First operand 1025 states and 1326 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:51,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:51,663 INFO L93 Difference]: Finished difference Result 1696 states and 2184 transitions. [2022-11-22 02:05:51,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:51,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:51,665 INFO L225 Difference]: With dead ends: 1696 [2022-11-22 02:05:51,665 INFO L226 Difference]: Without dead ends: 1631 [2022-11-22 02:05:51,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:05:51,666 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 4874 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 3275 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4874 SdHoareTripleChecker+Valid, 3859 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:51,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4874 Valid, 3859 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3275 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:05:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-11-22 02:05:52,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1025. [2022-11-22 02:05:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3303212851405624) internal successors, (1325), 1024 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:52,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1325 transitions. [2022-11-22 02:05:52,114 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1325 transitions. Word has length 113 [2022-11-22 02:05:52,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:52,114 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1325 transitions. [2022-11-22 02:05:52,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1325 transitions. [2022-11-22 02:05:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:52,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:52,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:52,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-22 02:05:52,116 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:52,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1045963746, now seen corresponding path program 1 times [2022-11-22 02:05:52,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:52,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827417491] [2022-11-22 02:05:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:52,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:52,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:52,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827417491] [2022-11-22 02:05:52,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827417491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:52,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:52,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:05:52,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031449736] [2022-11-22 02:05:52,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:52,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:05:52,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:52,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:05:52,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:05:52,379 INFO L87 Difference]: Start difference. First operand 1025 states and 1325 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:56,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:56,201 INFO L93 Difference]: Finished difference Result 1700 states and 2187 transitions. [2022-11-22 02:05:56,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:05:56,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-22 02:05:56,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:56,204 INFO L225 Difference]: With dead ends: 1700 [2022-11-22 02:05:56,204 INFO L226 Difference]: Without dead ends: 1631 [2022-11-22 02:05:56,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:05:56,205 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 4883 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 3267 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 3271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:56,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 3850 Invalid, 3271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3267 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:05:56,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-11-22 02:05:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1025. [2022-11-22 02:05:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3293172690763053) internal successors, (1324), 1024 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1324 transitions. [2022-11-22 02:05:56,636 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1324 transitions. Word has length 113 [2022-11-22 02:05:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:56,636 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1324 transitions. [2022-11-22 02:05:56,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-22 02:05:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1324 transitions. [2022-11-22 02:05:56,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:05:56,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:56,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:56,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-22 02:05:56,639 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:05:56,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:56,640 INFO L85 PathProgramCache]: Analyzing trace with hash -637118518, now seen corresponding path program 1 times [2022-11-22 02:05:56,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:56,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382215890] [2022-11-22 02:05:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:57,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:57,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:57,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382215890] [2022-11-22 02:05:57,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382215890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:57,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:57,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:05:57,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112161123] [2022-11-22 02:05:57,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:57,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:05:57,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:57,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:05:57,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:05:57,049 INFO L87 Difference]: Start difference. First operand 1025 states and 1324 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:06:03,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:03,245 INFO L93 Difference]: Finished difference Result 2117 states and 2740 transitions. [2022-11-22 02:06:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:06:03,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 02:06:03,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:03,247 INFO L225 Difference]: With dead ends: 2117 [2022-11-22 02:06:03,247 INFO L226 Difference]: Without dead ends: 2026 [2022-11-22 02:06:03,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:06:03,248 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 8729 mSDsluCounter, 3545 mSDsCounter, 0 mSdLazyCounter, 3977 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8729 SdHoareTripleChecker+Valid, 4587 SdHoareTripleChecker+Invalid, 4325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 3977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:03,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8729 Valid, 4587 Invalid, 4325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 3977 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 02:06:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2022-11-22 02:06:03,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1029. [2022-11-22 02:06:03,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1000 states have (on average 1.328) internal successors, (1328), 1028 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1328 transitions. [2022-11-22 02:06:03,703 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1328 transitions. Word has length 113 [2022-11-22 02:06:03,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:03,703 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1328 transitions. [2022-11-22 02:06:03,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 02:06:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1328 transitions. [2022-11-22 02:06:03,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:03,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:03,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:03,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-22 02:06:03,706 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1684740987, now seen corresponding path program 1 times [2022-11-22 02:06:03,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:03,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601286864] [2022-11-22 02:06:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:03,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:03,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:03,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601286864] [2022-11-22 02:06:03,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601286864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:03,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:03,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:04,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476126817] [2022-11-22 02:06:04,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:04,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:04,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:04,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:04,007 INFO L87 Difference]: Start difference. First operand 1029 states and 1328 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:07,937 INFO L93 Difference]: Finished difference Result 1738 states and 2246 transitions. [2022-11-22 02:06:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:07,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:06:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:07,939 INFO L225 Difference]: With dead ends: 1738 [2022-11-22 02:06:07,939 INFO L226 Difference]: Without dead ends: 1647 [2022-11-22 02:06:07,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:06:07,940 INFO L413 NwaCegarLoop]: 990 mSDtfsCounter, 3173 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 3429 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 4095 SdHoareTripleChecker+Invalid, 3433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:07,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 4095 Invalid, 3433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3429 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:06:07,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-11-22 02:06:08,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1025. [2022-11-22 02:06:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3283132530120483) internal successors, (1323), 1024 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1323 transitions. [2022-11-22 02:06:08,533 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1323 transitions. Word has length 114 [2022-11-22 02:06:08,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:08,534 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1323 transitions. [2022-11-22 02:06:08,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:08,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1323 transitions. [2022-11-22 02:06:08,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:08,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:08,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:08,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-22 02:06:08,536 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:08,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:08,537 INFO L85 PathProgramCache]: Analyzing trace with hash 682074120, now seen corresponding path program 1 times [2022-11-22 02:06:08,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:08,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111456980] [2022-11-22 02:06:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:08,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:09,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:09,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111456980] [2022-11-22 02:06:09,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111456980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:09,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:09,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:06:09,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13747882] [2022-11-22 02:06:09,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:09,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:06:09,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:09,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:06:09,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:06:09,231 INFO L87 Difference]: Start difference. First operand 1025 states and 1323 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:12,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:12,845 INFO L93 Difference]: Finished difference Result 2164 states and 2697 transitions. [2022-11-22 02:06:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 02:06:12,845 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:06:12,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:12,847 INFO L225 Difference]: With dead ends: 2164 [2022-11-22 02:06:12,847 INFO L226 Difference]: Without dead ends: 1731 [2022-11-22 02:06:12,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:06:12,848 INFO L413 NwaCegarLoop]: 1356 mSDtfsCounter, 5376 mSDsluCounter, 3938 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5376 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:12,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5376 Valid, 5294 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:06:12,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-11-22 02:06:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 649. [2022-11-22 02:06:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3046251993620415) internal successors, (818), 648 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 818 transitions. [2022-11-22 02:06:13,197 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 818 transitions. Word has length 114 [2022-11-22 02:06:13,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:13,197 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 818 transitions. [2022-11-22 02:06:13,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 818 transitions. [2022-11-22 02:06:13,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:13,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:13,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:13,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-22 02:06:13,199 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:13,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:13,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1953304806, now seen corresponding path program 1 times [2022-11-22 02:06:13,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:13,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634944236] [2022-11-22 02:06:13,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:13,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:13,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:13,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634944236] [2022-11-22 02:06:13,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634944236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:13,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:13,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:13,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50376979] [2022-11-22 02:06:13,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:13,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:13,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:13,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:13,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:13,507 INFO L87 Difference]: Start difference. First operand 649 states and 818 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:16,291 INFO L93 Difference]: Finished difference Result 1164 states and 1475 transitions. [2022-11-22 02:06:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:16,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:06:16,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:16,292 INFO L225 Difference]: With dead ends: 1164 [2022-11-22 02:06:16,293 INFO L226 Difference]: Without dead ends: 1073 [2022-11-22 02:06:16,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:06:16,293 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3117 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3117 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:16,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3117 Valid, 2474 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:06:16,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-11-22 02:06:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 645. [2022-11-22 02:06:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.304975922953451) internal successors, (813), 644 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:16,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 813 transitions. [2022-11-22 02:06:16,636 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 813 transitions. Word has length 114 [2022-11-22 02:06:16,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:16,636 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 813 transitions. [2022-11-22 02:06:16,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:16,637 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 813 transitions. [2022-11-22 02:06:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:16,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:16,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:16,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-22 02:06:16,638 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:16,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1294830011, now seen corresponding path program 1 times [2022-11-22 02:06:16,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:16,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786663716] [2022-11-22 02:06:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:16,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:16,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:16,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786663716] [2022-11-22 02:06:16,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786663716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:16,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:16,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:16,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616299496] [2022-11-22 02:06:16,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:16,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:16,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:16,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:16,902 INFO L87 Difference]: Start difference. First operand 645 states and 813 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:19,804 INFO L93 Difference]: Finished difference Result 1155 states and 1466 transitions. [2022-11-22 02:06:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:19,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:06:19,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:19,806 INFO L225 Difference]: With dead ends: 1155 [2022-11-22 02:06:19,806 INFO L226 Difference]: Without dead ends: 1073 [2022-11-22 02:06:19,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:06:19,807 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 2001 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:19,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 2570 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:06:19,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-11-22 02:06:20,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 641. [2022-11-22 02:06:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3053311793214863) internal successors, (808), 640 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:20,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 808 transitions. [2022-11-22 02:06:20,168 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 808 transitions. Word has length 114 [2022-11-22 02:06:20,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:20,168 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 808 transitions. [2022-11-22 02:06:20,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:20,168 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 808 transitions. [2022-11-22 02:06:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:20,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:20,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:20,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-22 02:06:20,170 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:20,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:20,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1296495440, now seen corresponding path program 1 times [2022-11-22 02:06:20,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:20,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867192187] [2022-11-22 02:06:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:20,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:20,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867192187] [2022-11-22 02:06:20,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867192187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:20,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:20,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:06:20,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51440613] [2022-11-22 02:06:20,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:20,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:06:20,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:20,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:06:20,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:06:20,757 INFO L87 Difference]: Start difference. First operand 641 states and 808 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:23,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:23,171 INFO L93 Difference]: Finished difference Result 1703 states and 2171 transitions. [2022-11-22 02:06:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:06:23,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:06:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:23,173 INFO L225 Difference]: With dead ends: 1703 [2022-11-22 02:06:23,173 INFO L226 Difference]: Without dead ends: 1429 [2022-11-22 02:06:23,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:06:23,174 INFO L413 NwaCegarLoop]: 1704 mSDtfsCounter, 3313 mSDsluCounter, 7276 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:23,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3313 Valid, 8980 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 02:06:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2022-11-22 02:06:23,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 424. [2022-11-22 02:06:23,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 408 states have (on average 1.2745098039215685) internal successors, (520), 423 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 520 transitions. [2022-11-22 02:06:23,525 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 520 transitions. Word has length 114 [2022-11-22 02:06:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:23,525 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 520 transitions. [2022-11-22 02:06:23,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 520 transitions. [2022-11-22 02:06:23,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:23,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:23,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:23,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-22 02:06:23,527 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:23,527 INFO L85 PathProgramCache]: Analyzing trace with hash -405440613, now seen corresponding path program 1 times [2022-11-22 02:06:23,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:23,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550328293] [2022-11-22 02:06:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:23,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:23,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:23,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550328293] [2022-11-22 02:06:23,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550328293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:23,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:23,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:23,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607512678] [2022-11-22 02:06:23,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:23,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:23,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:23,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:23,811 INFO L87 Difference]: Start difference. First operand 424 states and 520 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:26,126 INFO L93 Difference]: Finished difference Result 880 states and 1100 transitions. [2022-11-22 02:06:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:26,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:06:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:26,128 INFO L225 Difference]: With dead ends: 880 [2022-11-22 02:06:26,128 INFO L226 Difference]: Without dead ends: 744 [2022-11-22 02:06:26,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:06:26,128 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 1975 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:26,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 1768 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:06:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-11-22 02:06:26,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 420. [2022-11-22 02:06:26,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 404 states have (on average 1.2747524752475248) internal successors, (515), 419 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 515 transitions. [2022-11-22 02:06:26,396 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 515 transitions. Word has length 114 [2022-11-22 02:06:26,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:26,396 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 515 transitions. [2022-11-22 02:06:26,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:26,396 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 515 transitions. [2022-11-22 02:06:26,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:26,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:26,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:26,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-22 02:06:26,397 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:26,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:26,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1780891135, now seen corresponding path program 1 times [2022-11-22 02:06:26,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:26,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172036014] [2022-11-22 02:06:26,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:26,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:26,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:26,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172036014] [2022-11-22 02:06:26,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172036014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:26,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:26,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:26,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869896117] [2022-11-22 02:06:26,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:26,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:26,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:26,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:26,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:26,673 INFO L87 Difference]: Start difference. First operand 420 states and 515 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:29,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:29,399 INFO L93 Difference]: Finished difference Result 827 states and 1034 transitions. [2022-11-22 02:06:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:06:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:29,401 INFO L225 Difference]: With dead ends: 827 [2022-11-22 02:06:29,401 INFO L226 Difference]: Without dead ends: 736 [2022-11-22 02:06:29,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:06:29,402 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 1762 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:29,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 1927 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:06:29,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-11-22 02:06:29,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 416. [2022-11-22 02:06:29,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 400 states have (on average 1.275) internal successors, (510), 415 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 510 transitions. [2022-11-22 02:06:29,964 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 510 transitions. Word has length 114 [2022-11-22 02:06:29,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:29,964 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 510 transitions. [2022-11-22 02:06:29,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 510 transitions. [2022-11-22 02:06:29,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:29,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:29,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:29,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-22 02:06:29,966 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash -383544911, now seen corresponding path program 1 times [2022-11-22 02:06:29,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:29,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447294865] [2022-11-22 02:06:29,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:29,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:30,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:30,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447294865] [2022-11-22 02:06:30,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447294865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:30,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:30,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:30,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234219233] [2022-11-22 02:06:30,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:30,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:30,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:30,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:30,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:30,295 INFO L87 Difference]: Start difference. First operand 416 states and 510 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:32,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:32,998 INFO L93 Difference]: Finished difference Result 774 states and 956 transitions. [2022-11-22 02:06:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:32,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:06:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:32,999 INFO L225 Difference]: With dead ends: 774 [2022-11-22 02:06:32,999 INFO L226 Difference]: Without dead ends: 712 [2022-11-22 02:06:33,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:06:33,000 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 2041 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:33,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 1500 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:06:33,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-11-22 02:06:33,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 416. [2022-11-22 02:06:33,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 400 states have (on average 1.2725) internal successors, (509), 415 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:33,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 509 transitions. [2022-11-22 02:06:33,572 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 509 transitions. Word has length 115 [2022-11-22 02:06:33,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:33,572 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 509 transitions. [2022-11-22 02:06:33,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:33,573 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 509 transitions. [2022-11-22 02:06:33,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:33,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:33,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:33,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-22 02:06:33,574 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:33,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:33,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1528652191, now seen corresponding path program 1 times [2022-11-22 02:06:33,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:33,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755012505] [2022-11-22 02:06:33,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:33,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:33,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:33,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755012505] [2022-11-22 02:06:33,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755012505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:33,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:33,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:33,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805394104] [2022-11-22 02:06:33,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:33,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:33,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:33,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:33,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:33,902 INFO L87 Difference]: Start difference. First operand 416 states and 509 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:36,690 INFO L93 Difference]: Finished difference Result 802 states and 996 transitions. [2022-11-22 02:06:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:36,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:06:36,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:36,692 INFO L225 Difference]: With dead ends: 802 [2022-11-22 02:06:36,692 INFO L226 Difference]: Without dead ends: 728 [2022-11-22 02:06:36,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:06:36,693 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1928 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:36,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 1715 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:06:36,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-11-22 02:06:37,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 416. [2022-11-22 02:06:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 400 states have (on average 1.27) internal successors, (508), 415 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) [2022-11-22 02:06:37,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 508 transitions. [2022-11-22 02:06:37,339 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 508 transitions. Word has length 115 [2022-11-22 02:06:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:37,340 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 508 transitions. [2022-11-22 02:06:37,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 508 transitions. [2022-11-22 02:06:37,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:37,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:37,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:37,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-22 02:06:37,341 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1909035737, now seen corresponding path program 1 times [2022-11-22 02:06:37,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:37,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332628465] [2022-11-22 02:06:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:37,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:37,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:37,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332628465] [2022-11-22 02:06:37,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332628465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:37,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:37,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:06:37,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219310867] [2022-11-22 02:06:37,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:37,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:06:37,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:37,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:06:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:06:37,850 INFO L87 Difference]: Start difference. First operand 416 states and 508 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:43,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:43,462 INFO L93 Difference]: Finished difference Result 1204 states and 1513 transitions. [2022-11-22 02:06:43,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:06:43,463 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:06:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:43,464 INFO L225 Difference]: With dead ends: 1204 [2022-11-22 02:06:43,464 INFO L226 Difference]: Without dead ends: 1107 [2022-11-22 02:06:43,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:06:43,465 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 3851 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3851 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:43,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3851 Valid, 2701 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:06:43,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-11-22 02:06:43,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 420. [2022-11-22 02:06:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 404 states have (on average 1.2673267326732673) internal successors, (512), 419 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 512 transitions. [2022-11-22 02:06:43,808 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 512 transitions. Word has length 115 [2022-11-22 02:06:43,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:43,809 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 512 transitions. [2022-11-22 02:06:43,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:43,809 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 512 transitions. [2022-11-22 02:06:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:43,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:43,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:43,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-22 02:06:43,810 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:43,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:43,811 INFO L85 PathProgramCache]: Analyzing trace with hash 121393216, now seen corresponding path program 1 times [2022-11-22 02:06:43,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:43,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874373110] [2022-11-22 02:06:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:43,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:44,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:44,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874373110] [2022-11-22 02:06:44,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874373110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:44,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:44,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:44,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137114381] [2022-11-22 02:06:44,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:44,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:44,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:44,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:44,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:44,155 INFO L87 Difference]: Start difference. First operand 420 states and 512 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:46,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:46,890 INFO L93 Difference]: Finished difference Result 775 states and 955 transitions. [2022-11-22 02:06:46,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:46,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:06:46,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:46,891 INFO L225 Difference]: With dead ends: 775 [2022-11-22 02:06:46,891 INFO L226 Difference]: Without dead ends: 716 [2022-11-22 02:06:46,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:06:46,892 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1901 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:46,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 1606 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:06:46,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-11-22 02:06:47,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 420. [2022-11-22 02:06:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 404 states have (on average 1.2648514851485149) internal successors, (511), 419 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 511 transitions. [2022-11-22 02:06:47,324 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 511 transitions. Word has length 115 [2022-11-22 02:06:47,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:47,324 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 511 transitions. [2022-11-22 02:06:47,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 511 transitions. [2022-11-22 02:06:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:47,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:47,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:47,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-22 02:06:47,325 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:47,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1144564190, now seen corresponding path program 1 times [2022-11-22 02:06:47,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:47,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805069080] [2022-11-22 02:06:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:47,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:47,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:47,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805069080] [2022-11-22 02:06:47,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805069080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:47,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:47,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:47,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266084053] [2022-11-22 02:06:47,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:47,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:47,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:47,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:47,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:47,577 INFO L87 Difference]: Start difference. First operand 420 states and 511 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:50,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:50,043 INFO L93 Difference]: Finished difference Result 778 states and 957 transitions. [2022-11-22 02:06:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:06:50,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:06:50,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:50,044 INFO L225 Difference]: With dead ends: 778 [2022-11-22 02:06:50,044 INFO L226 Difference]: Without dead ends: 716 [2022-11-22 02:06:50,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:06:50,045 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1676 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:50,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 1623 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:06:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-11-22 02:06:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 420. [2022-11-22 02:06:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 404 states have (on average 1.2623762376237624) internal successors, (510), 419 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 510 transitions. [2022-11-22 02:06:50,382 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 510 transitions. Word has length 115 [2022-11-22 02:06:50,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:50,383 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 510 transitions. [2022-11-22 02:06:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 510 transitions. [2022-11-22 02:06:50,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:50,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:50,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:50,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-22 02:06:50,384 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:50,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:50,385 INFO L85 PathProgramCache]: Analyzing trace with hash -389427615, now seen corresponding path program 1 times [2022-11-22 02:06:50,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:50,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557566219] [2022-11-22 02:06:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:50,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:50,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:50,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557566219] [2022-11-22 02:06:50,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557566219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:50,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:50,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:50,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878935786] [2022-11-22 02:06:50,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:50,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:50,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:50,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:50,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:50,676 INFO L87 Difference]: Start difference. First operand 420 states and 510 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:53,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:53,261 INFO L93 Difference]: Finished difference Result 778 states and 955 transitions. [2022-11-22 02:06:53,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:53,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:06:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:53,263 INFO L225 Difference]: With dead ends: 778 [2022-11-22 02:06:53,263 INFO L226 Difference]: Without dead ends: 716 [2022-11-22 02:06:53,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:06:53,264 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 1989 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:53,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 1552 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:06:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-11-22 02:06:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 420. [2022-11-22 02:06:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 404 states have (on average 1.25990099009901) internal successors, (509), 419 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 509 transitions. [2022-11-22 02:06:53,615 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 509 transitions. Word has length 115 [2022-11-22 02:06:53,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:53,615 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 509 transitions. [2022-11-22 02:06:53,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 509 transitions. [2022-11-22 02:06:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:53,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:53,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:53,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-22 02:06:53,616 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1522769487, now seen corresponding path program 1 times [2022-11-22 02:06:53,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:53,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521353037] [2022-11-22 02:06:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:53,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:53,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:53,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:53,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521353037] [2022-11-22 02:06:53,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521353037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:53,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:53,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:06:53,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16815168] [2022-11-22 02:06:53,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:53,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:06:53,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:53,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:06:53,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:53,847 INFO L87 Difference]: Start difference. First operand 420 states and 509 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:56,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:56,629 INFO L93 Difference]: Finished difference Result 806 states and 995 transitions. [2022-11-22 02:06:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:06:56,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:06:56,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:56,630 INFO L225 Difference]: With dead ends: 806 [2022-11-22 02:06:56,630 INFO L226 Difference]: Without dead ends: 732 [2022-11-22 02:06:56,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:06:56,631 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1283 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:56,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1738 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:06:56,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-11-22 02:06:56,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 420. [2022-11-22 02:06:56,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 404 states have (on average 1.2574257425742574) internal successors, (508), 419 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) [2022-11-22 02:06:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 508 transitions. [2022-11-22 02:06:57,000 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 508 transitions. Word has length 115 [2022-11-22 02:06:57,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:57,000 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 508 transitions. [2022-11-22 02:06:57,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:57,000 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 508 transitions. [2022-11-22 02:06:57,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:06:57,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:57,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:57,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-22 02:06:57,002 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:06:57,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:57,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1294578042, now seen corresponding path program 1 times [2022-11-22 02:06:57,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:57,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960741354] [2022-11-22 02:06:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:57,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:58,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:58,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960741354] [2022-11-22 02:06:58,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960741354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:58,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:58,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-22 02:06:58,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586472599] [2022-11-22 02:06:58,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:58,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-22 02:06:58,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:58,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-22 02:06:58,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:06:58,599 INFO L87 Difference]: Start difference. First operand 420 states and 508 transitions. Second operand has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:06,562 INFO L93 Difference]: Finished difference Result 2232 states and 2796 transitions. [2022-11-22 02:07:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 02:07:06,563 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:07:06,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:06,564 INFO L225 Difference]: With dead ends: 2232 [2022-11-22 02:07:06,565 INFO L226 Difference]: Without dead ends: 2062 [2022-11-22 02:07:06,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=226, Invalid=1034, Unknown=0, NotChecked=0, Total=1260 [2022-11-22 02:07:06,566 INFO L413 NwaCegarLoop]: 1835 mSDtfsCounter, 5269 mSDsluCounter, 19352 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5269 SdHoareTripleChecker+Valid, 21187 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:06,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5269 Valid, 21187 Invalid, 2776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-22 02:07:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2022-11-22 02:07:06,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 431. [2022-11-22 02:07:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 415 states have (on average 1.2554216867469878) internal successors, (521), 430 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 521 transitions. [2022-11-22 02:07:07,000 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 521 transitions. Word has length 115 [2022-11-22 02:07:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:07,000 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 521 transitions. [2022-11-22 02:07:07,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 521 transitions. [2022-11-22 02:07:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:07,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:07,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:07,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-22 02:07:07,002 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:07,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1995505674, now seen corresponding path program 1 times [2022-11-22 02:07:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:07,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817492406] [2022-11-22 02:07:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:07,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:07,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:07,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817492406] [2022-11-22 02:07:07,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817492406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:07,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:07,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:07:07,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768827408] [2022-11-22 02:07:07,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:07,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:07:07,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:07,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:07:07,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:07:07,806 INFO L87 Difference]: Start difference. First operand 431 states and 521 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 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) [2022-11-22 02:07:11,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:11,086 INFO L93 Difference]: Finished difference Result 919 states and 1143 transitions. [2022-11-22 02:07:11,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:07:11,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 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 [2022-11-22 02:07:11,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:11,088 INFO L225 Difference]: With dead ends: 919 [2022-11-22 02:07:11,088 INFO L226 Difference]: Without dead ends: 861 [2022-11-22 02:07:11,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:07:11,089 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 3117 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3117 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:11,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3117 Valid, 4103 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:07:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-11-22 02:07:11,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 430. [2022-11-22 02:07:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 414 states have (on average 1.2536231884057971) internal successors, (519), 429 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:11,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 519 transitions. [2022-11-22 02:07:11,578 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 519 transitions. Word has length 116 [2022-11-22 02:07:11,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:11,578 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 519 transitions. [2022-11-22 02:07:11,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 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) [2022-11-22 02:07:11,578 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 519 transitions. [2022-11-22 02:07:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:11,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:11,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:11,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-22 02:07:11,579 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash 339464028, now seen corresponding path program 1 times [2022-11-22 02:07:11,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:11,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274105976] [2022-11-22 02:07:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:12,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:12,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:12,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274105976] [2022-11-22 02:07:12,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274105976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:12,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:12,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:07:12,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669864623] [2022-11-22 02:07:12,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:12,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:07:12,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:12,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:07:12,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:07:12,131 INFO L87 Difference]: Start difference. First operand 430 states and 519 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 02:07:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:17,630 INFO L93 Difference]: Finished difference Result 1075 states and 1339 transitions. [2022-11-22 02:07:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 02:07:17,631 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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 [2022-11-22 02:07:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:17,632 INFO L225 Difference]: With dead ends: 1075 [2022-11-22 02:07:17,632 INFO L226 Difference]: Without dead ends: 1016 [2022-11-22 02:07:17,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2022-11-22 02:07:17,633 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 3969 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3969 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:17,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3969 Valid, 2020 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 02:07:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-11-22 02:07:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 434. [2022-11-22 02:07:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 418 states have (on average 1.2511961722488039) internal successors, (523), 433 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 523 transitions. [2022-11-22 02:07:18,153 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 523 transitions. Word has length 116 [2022-11-22 02:07:18,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:18,153 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 523 transitions. [2022-11-22 02:07:18,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 02:07:18,154 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 523 transitions. [2022-11-22 02:07:18,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:18,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:18,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:18,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-22 02:07:18,155 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:18,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:18,155 INFO L85 PathProgramCache]: Analyzing trace with hash -309230048, now seen corresponding path program 1 times [2022-11-22 02:07:18,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:18,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31128386] [2022-11-22 02:07:18,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:18,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:18,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:18,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31128386] [2022-11-22 02:07:18,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31128386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:18,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:18,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:18,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114781069] [2022-11-22 02:07:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:18,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:18,439 INFO L87 Difference]: Start difference. First operand 434 states and 523 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:21,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:21,433 INFO L93 Difference]: Finished difference Result 785 states and 960 transitions. [2022-11-22 02:07:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:07:21,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 02:07:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:21,434 INFO L225 Difference]: With dead ends: 785 [2022-11-22 02:07:21,434 INFO L226 Difference]: Without dead ends: 726 [2022-11-22 02:07:21,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:07:21,435 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1845 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:21,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 1654 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:07:21,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-11-22 02:07:21,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 434. [2022-11-22 02:07:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 418 states have (on average 1.2488038277511961) internal successors, (522), 433 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:21,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 522 transitions. [2022-11-22 02:07:21,976 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 522 transitions. Word has length 116 [2022-11-22 02:07:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:21,976 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 522 transitions. [2022-11-22 02:07:21,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 522 transitions. [2022-11-22 02:07:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:21,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:21,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:21,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-22 02:07:21,977 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:21,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:21,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1574807135, now seen corresponding path program 1 times [2022-11-22 02:07:21,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:21,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126849610] [2022-11-22 02:07:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:21,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:22,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:22,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126849610] [2022-11-22 02:07:22,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126849610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:22,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:22,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:07:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034759528] [2022-11-22 02:07:22,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:22,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:07:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:22,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:07:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:07:22,637 INFO L87 Difference]: Start difference. First operand 434 states and 522 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 02:07:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:28,285 INFO L93 Difference]: Finished difference Result 1074 states and 1333 transitions. [2022-11-22 02:07:28,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:07:28,286 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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 [2022-11-22 02:07:28,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:28,287 INFO L225 Difference]: With dead ends: 1074 [2022-11-22 02:07:28,287 INFO L226 Difference]: Without dead ends: 1012 [2022-11-22 02:07:28,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:07:28,288 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 3896 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3896 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:28,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3896 Valid, 2133 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:07:28,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-11-22 02:07:28,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 438. [2022-11-22 02:07:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 422 states have (on average 1.2464454976303319) internal successors, (526), 437 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 526 transitions. [2022-11-22 02:07:28,805 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 526 transitions. Word has length 116 [2022-11-22 02:07:28,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:28,805 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 526 transitions. [2022-11-22 02:07:28,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 02:07:28,805 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 526 transitions. [2022-11-22 02:07:28,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:28,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:28,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:28,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-22 02:07:28,806 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:28,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:28,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1916421057, now seen corresponding path program 1 times [2022-11-22 02:07:28,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:28,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575529395] [2022-11-22 02:07:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:29,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:29,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575529395] [2022-11-22 02:07:29,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575529395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:29,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:29,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:29,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347239140] [2022-11-22 02:07:29,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:29,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:29,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:29,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:29,120 INFO L87 Difference]: Start difference. First operand 438 states and 526 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:32,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:32,126 INFO L93 Difference]: Finished difference Result 788 states and 961 transitions. [2022-11-22 02:07:32,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:07:32,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 02:07:32,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:32,128 INFO L225 Difference]: With dead ends: 788 [2022-11-22 02:07:32,128 INFO L226 Difference]: Without dead ends: 726 [2022-11-22 02:07:32,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:07:32,129 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 1946 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:32,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1584 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:07:32,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-11-22 02:07:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 438. [2022-11-22 02:07:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 422 states have (on average 1.2440758293838863) internal successors, (525), 437 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 525 transitions. [2022-11-22 02:07:32,714 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 525 transitions. Word has length 116 [2022-11-22 02:07:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:32,714 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 525 transitions. [2022-11-22 02:07:32,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 525 transitions. [2022-11-22 02:07:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:32,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:32,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:32,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-22 02:07:32,716 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash -466349137, now seen corresponding path program 1 times [2022-11-22 02:07:32,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:32,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517203029] [2022-11-22 02:07:32,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:32,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:32,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:32,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517203029] [2022-11-22 02:07:32,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517203029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:32,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:32,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:32,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621936910] [2022-11-22 02:07:32,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:32,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:32,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:32,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:32,977 INFO L87 Difference]: Start difference. First operand 438 states and 525 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:35,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:35,972 INFO L93 Difference]: Finished difference Result 828 states and 1012 transitions. [2022-11-22 02:07:35,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:07:35,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 02:07:35,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:35,973 INFO L225 Difference]: With dead ends: 828 [2022-11-22 02:07:35,974 INFO L226 Difference]: Without dead ends: 754 [2022-11-22 02:07:35,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:07:35,974 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1272 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:35,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 1738 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:07:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-11-22 02:07:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 438. [2022-11-22 02:07:36,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 422 states have (on average 1.2417061611374407) internal successors, (524), 437 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:36,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 524 transitions. [2022-11-22 02:07:36,576 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 524 transitions. Word has length 116 [2022-11-22 02:07:36,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:36,576 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 524 transitions. [2022-11-22 02:07:36,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:36,576 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 524 transitions. [2022-11-22 02:07:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:36,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:36,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:36,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-22 02:07:36,578 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:36,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1867988553, now seen corresponding path program 1 times [2022-11-22 02:07:36,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:36,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876850703] [2022-11-22 02:07:36,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:36,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:36,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:36,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876850703] [2022-11-22 02:07:36,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876850703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:36,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:36,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:36,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985964961] [2022-11-22 02:07:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:36,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:36,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:36,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:36,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:36,914 INFO L87 Difference]: Start difference. First operand 438 states and 524 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:40,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:40,044 INFO L93 Difference]: Finished difference Result 785 states and 956 transitions. [2022-11-22 02:07:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:07:40,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 02:07:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:40,045 INFO L225 Difference]: With dead ends: 785 [2022-11-22 02:07:40,046 INFO L226 Difference]: Without dead ends: 726 [2022-11-22 02:07:40,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:07:40,046 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1806 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:40,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 1690 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:07:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-11-22 02:07:40,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 438. [2022-11-22 02:07:40,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 422 states have (on average 1.2393364928909953) internal successors, (523), 437 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 523 transitions. [2022-11-22 02:07:40,571 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 523 transitions. Word has length 116 [2022-11-22 02:07:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:40,572 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 523 transitions. [2022-11-22 02:07:40,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 523 transitions. [2022-11-22 02:07:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:40,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:40,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:40,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-22 02:07:40,574 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1161284482, now seen corresponding path program 1 times [2022-11-22 02:07:40,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:40,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4632215] [2022-11-22 02:07:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:41,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:41,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4632215] [2022-11-22 02:07:41,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4632215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:41,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:41,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:07:41,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905041784] [2022-11-22 02:07:41,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:41,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:07:41,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:41,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:07:41,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:07:41,067 INFO L87 Difference]: Start difference. First operand 438 states and 523 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 02:07:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:46,777 INFO L93 Difference]: Finished difference Result 1074 states and 1329 transitions. [2022-11-22 02:07:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:07:46,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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 [2022-11-22 02:07:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:46,779 INFO L225 Difference]: With dead ends: 1074 [2022-11-22 02:07:46,779 INFO L226 Difference]: Without dead ends: 1012 [2022-11-22 02:07:46,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:07:46,780 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 3884 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:46,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3884 Valid, 1787 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 02:07:46,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-11-22 02:07:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 442. [2022-11-22 02:07:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 426 states have (on average 1.2370892018779343) internal successors, (527), 441 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 527 transitions. [2022-11-22 02:07:47,300 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 527 transitions. Word has length 116 [2022-11-22 02:07:47,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:47,300 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 527 transitions. [2022-11-22 02:07:47,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 02:07:47,301 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 527 transitions. [2022-11-22 02:07:47,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:07:47,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:47,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:47,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-22 02:07:47,302 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:47,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash 681836784, now seen corresponding path program 1 times [2022-11-22 02:07:47,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:47,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722438749] [2022-11-22 02:07:47,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:47,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:47,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:47,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722438749] [2022-11-22 02:07:47,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722438749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:47,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:47,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:47,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485922933] [2022-11-22 02:07:47,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:47,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:47,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:47,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:47,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:47,665 INFO L87 Difference]: Start difference. First operand 442 states and 527 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:50,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:50,883 INFO L93 Difference]: Finished difference Result 859 states and 1049 transitions. [2022-11-22 02:07:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:07:50,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 02:07:50,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:50,887 INFO L225 Difference]: With dead ends: 859 [2022-11-22 02:07:50,887 INFO L226 Difference]: Without dead ends: 762 [2022-11-22 02:07:50,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:07:50,887 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1783 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:50,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 1857 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:07:50,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-11-22 02:07:51,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 438. [2022-11-22 02:07:51,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 422 states have (on average 1.2369668246445498) internal successors, (522), 437 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:51,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 522 transitions. [2022-11-22 02:07:51,413 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 522 transitions. Word has length 116 [2022-11-22 02:07:51,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:51,413 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 522 transitions. [2022-11-22 02:07:51,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 02:07:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 522 transitions. [2022-11-22 02:07:51,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:07:51,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:51,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:51,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-22 02:07:51,415 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:51,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1138966953, now seen corresponding path program 1 times [2022-11-22 02:07:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:51,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423047684] [2022-11-22 02:07:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:51,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:51,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:51,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423047684] [2022-11-22 02:07:51,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423047684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:51,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:51,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:51,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749040290] [2022-11-22 02:07:51,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:51,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:51,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:51,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:51,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:51,691 INFO L87 Difference]: Start difference. First operand 438 states and 522 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:54,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:54,855 INFO L93 Difference]: Finished difference Result 781 states and 949 transitions. [2022-11-22 02:07:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:07:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:07:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:54,856 INFO L225 Difference]: With dead ends: 781 [2022-11-22 02:07:54,857 INFO L226 Difference]: Without dead ends: 722 [2022-11-22 02:07:54,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:07:54,857 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1861 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:54,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 1664 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:07:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-11-22 02:07:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 434. [2022-11-22 02:07:55,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 418 states have (on average 1.236842105263158) internal successors, (517), 433 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) [2022-11-22 02:07:55,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 517 transitions. [2022-11-22 02:07:55,402 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 517 transitions. Word has length 117 [2022-11-22 02:07:55,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:55,402 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 517 transitions. [2022-11-22 02:07:55,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:55,403 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 517 transitions. [2022-11-22 02:07:55,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:07:55,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:55,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:55,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-22 02:07:55,404 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:55,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:55,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1840548268, now seen corresponding path program 1 times [2022-11-22 02:07:55,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:55,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623129497] [2022-11-22 02:07:55,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:55,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:55,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:55,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:55,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623129497] [2022-11-22 02:07:55,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623129497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:55,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:55,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388175028] [2022-11-22 02:07:55,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:55,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:55,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:55,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:55,738 INFO L87 Difference]: Start difference. First operand 434 states and 517 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:59,008 INFO L93 Difference]: Finished difference Result 784 states and 951 transitions. [2022-11-22 02:07:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:07:59,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:07:59,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:59,010 INFO L225 Difference]: With dead ends: 784 [2022-11-22 02:07:59,010 INFO L226 Difference]: Without dead ends: 722 [2022-11-22 02:07:59,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:07:59,015 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 1271 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:59,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1689 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:07:59,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-11-22 02:07:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 430. [2022-11-22 02:07:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 414 states have (on average 1.2367149758454106) internal successors, (512), 429 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 512 transitions. [2022-11-22 02:07:59,501 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 512 transitions. Word has length 117 [2022-11-22 02:07:59,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:59,501 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 512 transitions. [2022-11-22 02:07:59,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 512 transitions. [2022-11-22 02:07:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:07:59,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:59,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:59,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-22 02:07:59,502 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:07:59,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:59,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1373913117, now seen corresponding path program 1 times [2022-11-22 02:07:59,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:59,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535938319] [2022-11-22 02:07:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:59,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:59,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:59,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535938319] [2022-11-22 02:07:59,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535938319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:59,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:59,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:07:59,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764172366] [2022-11-22 02:07:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:59,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:07:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:59,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:07:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:07:59,757 INFO L87 Difference]: Start difference. First operand 430 states and 512 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:02,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:02,872 INFO L93 Difference]: Finished difference Result 784 states and 950 transitions. [2022-11-22 02:08:02,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:08:02,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:08:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:02,873 INFO L225 Difference]: With dead ends: 784 [2022-11-22 02:08:02,873 INFO L226 Difference]: Without dead ends: 722 [2022-11-22 02:08:02,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:08:02,874 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1818 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:02,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1818 Valid, 1705 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:08:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-11-22 02:08:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 426. [2022-11-22 02:08:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 410 states have (on average 1.2365853658536585) internal successors, (507), 425 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 507 transitions. [2022-11-22 02:08:03,363 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 507 transitions. Word has length 117 [2022-11-22 02:08:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:03,363 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 507 transitions. [2022-11-22 02:08:03,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:03,363 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 507 transitions. [2022-11-22 02:08:03,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:08:03,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:03,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:03,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-22 02:08:03,364 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:03,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:03,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1619500807, now seen corresponding path program 1 times [2022-11-22 02:08:03,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:03,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125213842] [2022-11-22 02:08:03,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:03,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:04,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:04,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125213842] [2022-11-22 02:08:04,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125213842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:04,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:04,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:08:04,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973404725] [2022-11-22 02:08:04,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:04,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:08:04,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:04,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:08:04,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:08:04,040 INFO L87 Difference]: Start difference. First operand 426 states and 507 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:06,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:06,531 INFO L93 Difference]: Finished difference Result 669 states and 799 transitions. [2022-11-22 02:08:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:08:06,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:08:06,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:06,533 INFO L225 Difference]: With dead ends: 669 [2022-11-22 02:08:06,533 INFO L226 Difference]: Without dead ends: 608 [2022-11-22 02:08:06,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:08:06,535 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 2553 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2553 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:06,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2553 Valid, 2323 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:08:06,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-11-22 02:08:07,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 422. [2022-11-22 02:08:07,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 407 states have (on average 1.2334152334152335) internal successors, (502), 421 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) [2022-11-22 02:08:07,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 502 transitions. [2022-11-22 02:08:07,165 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 502 transitions. Word has length 117 [2022-11-22 02:08:07,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:07,165 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 502 transitions. [2022-11-22 02:08:07,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:07,165 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 502 transitions. [2022-11-22 02:08:07,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:08:07,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:07,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:07,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-22 02:08:07,167 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:07,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:07,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1077967282, now seen corresponding path program 1 times [2022-11-22 02:08:07,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:07,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141474145] [2022-11-22 02:08:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:07,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:07,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:07,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141474145] [2022-11-22 02:08:07,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141474145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:07,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:07,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:08:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196742518] [2022-11-22 02:08:07,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:07,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:08:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:07,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:08:07,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:08:07,928 INFO L87 Difference]: Start difference. First operand 422 states and 502 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:11,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:11,460 INFO L93 Difference]: Finished difference Result 946 states and 1162 transitions. [2022-11-22 02:08:11,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:08:11,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:08:11,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:11,462 INFO L225 Difference]: With dead ends: 946 [2022-11-22 02:08:11,462 INFO L226 Difference]: Without dead ends: 856 [2022-11-22 02:08:11,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:08:11,463 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 2211 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 4492 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:11,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 4492 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:08:11,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-11-22 02:08:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 389. [2022-11-22 02:08:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 377 states have (on average 1.2254641909814323) internal successors, (462), 388 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 462 transitions. [2022-11-22 02:08:11,972 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 462 transitions. Word has length 117 [2022-11-22 02:08:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:11,973 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 462 transitions. [2022-11-22 02:08:11,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:11,973 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 462 transitions. [2022-11-22 02:08:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:08:11,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:11,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:11,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-22 02:08:11,974 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:11,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:11,974 INFO L85 PathProgramCache]: Analyzing trace with hash -368802669, now seen corresponding path program 1 times [2022-11-22 02:08:11,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:11,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143254649] [2022-11-22 02:08:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:11,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:12,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:12,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143254649] [2022-11-22 02:08:12,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143254649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:12,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:12,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:08:12,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947691181] [2022-11-22 02:08:12,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:12,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:08:12,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:12,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:08:12,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:08:12,712 INFO L87 Difference]: Start difference. First operand 389 states and 462 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:16,524 INFO L93 Difference]: Finished difference Result 874 states and 1076 transitions. [2022-11-22 02:08:16,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:08:16,524 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:08:16,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:16,526 INFO L225 Difference]: With dead ends: 874 [2022-11-22 02:08:16,526 INFO L226 Difference]: Without dead ends: 793 [2022-11-22 02:08:16,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:08:16,526 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2093 mSDsluCounter, 4002 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:16,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 4714 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:08:16,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-11-22 02:08:17,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 365. [2022-11-22 02:08:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 354 states have (on average 1.2175141242937852) internal successors, (431), 364 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 431 transitions. [2022-11-22 02:08:17,029 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 431 transitions. Word has length 117 [2022-11-22 02:08:17,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:17,029 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 431 transitions. [2022-11-22 02:08:17,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:17,029 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 431 transitions. [2022-11-22 02:08:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:08:17,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:17,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:17,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-22 02:08:17,030 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1858693470, now seen corresponding path program 1 times [2022-11-22 02:08:17,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:17,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308841734] [2022-11-22 02:08:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:17,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:17,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:17,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308841734] [2022-11-22 02:08:17,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308841734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:17,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:17,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:08:17,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120051864] [2022-11-22 02:08:17,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:17,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:08:17,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:17,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:08:17,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:08:17,813 INFO L87 Difference]: Start difference. First operand 365 states and 431 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:22,884 INFO L93 Difference]: Finished difference Result 1135 states and 1408 transitions. [2022-11-22 02:08:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:08:22,885 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:08:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:22,886 INFO L225 Difference]: With dead ends: 1135 [2022-11-22 02:08:22,886 INFO L226 Difference]: Without dead ends: 1039 [2022-11-22 02:08:22,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:08:22,887 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 2596 mSDsluCounter, 4769 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:22,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2596 Valid, 5705 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:08:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-11-22 02:08:23,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 326. [2022-11-22 02:08:23,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 318 states have (on average 1.2075471698113207) internal successors, (384), 325 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:23,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 384 transitions. [2022-11-22 02:08:23,387 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 384 transitions. Word has length 117 [2022-11-22 02:08:23,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:23,388 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 384 transitions. [2022-11-22 02:08:23,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:23,388 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 384 transitions. [2022-11-22 02:08:23,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:08:23,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:23,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:23,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-22 02:08:23,389 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:23,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:23,389 INFO L85 PathProgramCache]: Analyzing trace with hash -840505809, now seen corresponding path program 1 times [2022-11-22 02:08:23,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:23,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805991698] [2022-11-22 02:08:23,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:23,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:24,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:24,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805991698] [2022-11-22 02:08:24,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805991698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:24,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:24,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:08:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537882007] [2022-11-22 02:08:24,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:24,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:08:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:08:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:08:24,155 INFO L87 Difference]: Start difference. First operand 326 states and 384 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:27,926 INFO L93 Difference]: Finished difference Result 802 states and 989 transitions. [2022-11-22 02:08:27,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:08:27,927 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-11-22 02:08:27,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:27,928 INFO L225 Difference]: With dead ends: 802 [2022-11-22 02:08:27,928 INFO L226 Difference]: Without dead ends: 732 [2022-11-22 02:08:27,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:08:27,928 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 2226 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:27,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 3379 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:08:27,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-11-22 02:08:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 313. [2022-11-22 02:08:28,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 305 states have (on average 1.20327868852459) internal successors, (367), 312 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 367 transitions. [2022-11-22 02:08:28,562 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 367 transitions. Word has length 118 [2022-11-22 02:08:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:28,562 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 367 transitions. [2022-11-22 02:08:28,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 367 transitions. [2022-11-22 02:08:28,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:08:28,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:28,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:28,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-22 02:08:28,564 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:28,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1515780461, now seen corresponding path program 1 times [2022-11-22 02:08:28,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:28,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206211761] [2022-11-22 02:08:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:29,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:29,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206211761] [2022-11-22 02:08:29,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206211761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:29,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:29,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:08:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068348762] [2022-11-22 02:08:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:29,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:08:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:08:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:08:29,339 INFO L87 Difference]: Start difference. First operand 313 states and 367 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:33,525 INFO L93 Difference]: Finished difference Result 808 states and 990 transitions. [2022-11-22 02:08:33,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 02:08:33,525 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-11-22 02:08:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:33,527 INFO L225 Difference]: With dead ends: 808 [2022-11-22 02:08:33,527 INFO L226 Difference]: Without dead ends: 652 [2022-11-22 02:08:33,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:08:33,527 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 1337 mSDsluCounter, 4122 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:33,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 4767 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:08:33,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-11-22 02:08:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 203. [2022-11-22 02:08:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 200 states have (on average 1.155) internal successors, (231), 202 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 231 transitions. [2022-11-22 02:08:34,024 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 231 transitions. Word has length 118 [2022-11-22 02:08:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:34,025 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 231 transitions. [2022-11-22 02:08:34,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 231 transitions. [2022-11-22 02:08:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:08:34,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:34,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:34,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-22 02:08:34,026 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:34,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:34,026 INFO L85 PathProgramCache]: Analyzing trace with hash 912390114, now seen corresponding path program 1 times [2022-11-22 02:08:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:34,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089581654] [2022-11-22 02:08:34,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:34,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:34,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:34,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089581654] [2022-11-22 02:08:34,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089581654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:34,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:34,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:08:34,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317670530] [2022-11-22 02:08:34,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:34,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:08:34,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:34,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:08:34,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:08:34,533 INFO L87 Difference]: Start difference. First operand 203 states and 231 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:39,986 INFO L93 Difference]: Finished difference Result 798 states and 994 transitions. [2022-11-22 02:08:39,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 02:08:39,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-11-22 02:08:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:39,988 INFO L225 Difference]: With dead ends: 798 [2022-11-22 02:08:39,988 INFO L226 Difference]: Without dead ends: 723 [2022-11-22 02:08:39,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2022-11-22 02:08:39,989 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 2188 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2188 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:39,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2188 Valid, 1385 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:08:39,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-11-22 02:08:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 207. [2022-11-22 02:08:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 204 states have (on average 1.1519607843137254) internal successors, (235), 206 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 235 transitions. [2022-11-22 02:08:40,396 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 235 transitions. Word has length 118 [2022-11-22 02:08:40,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:40,396 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 235 transitions. [2022-11-22 02:08:40,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 235 transitions. [2022-11-22 02:08:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:08:40,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:40,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:40,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-22 02:08:40,397 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2050593512, now seen corresponding path program 1 times [2022-11-22 02:08:40,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:40,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928219711] [2022-11-22 02:08:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:40,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:40,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:40,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928219711] [2022-11-22 02:08:40,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928219711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:40,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:40,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:08:40,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124033070] [2022-11-22 02:08:40,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:40,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:08:40,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:40,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:08:40,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:08:40,675 INFO L87 Difference]: Start difference. First operand 207 states and 235 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:42,133 INFO L93 Difference]: Finished difference Result 292 states and 338 transitions. [2022-11-22 02:08:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:08:42,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-11-22 02:08:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:42,134 INFO L225 Difference]: With dead ends: 292 [2022-11-22 02:08:42,134 INFO L226 Difference]: Without dead ends: 285 [2022-11-22 02:08:42,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:08:42,135 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 839 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:42,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 582 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:08:42,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-22 02:08:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 207. [2022-11-22 02:08:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 204 states have (on average 1.1470588235294117) internal successors, (234), 206 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 234 transitions. [2022-11-22 02:08:42,565 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 234 transitions. Word has length 118 [2022-11-22 02:08:42,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:42,565 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 234 transitions. [2022-11-22 02:08:42,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 234 transitions. [2022-11-22 02:08:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:08:42,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:42,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:42,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-22 02:08:42,566 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:42,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:42,566 INFO L85 PathProgramCache]: Analyzing trace with hash 500439934, now seen corresponding path program 1 times [2022-11-22 02:08:42,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:42,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298847973] [2022-11-22 02:08:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:42,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:42,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:42,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298847973] [2022-11-22 02:08:42,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298847973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:42,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:42,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:08:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773063401] [2022-11-22 02:08:42,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:42,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:08:42,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:08:42,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:08:42,849 INFO L87 Difference]: Start difference. First operand 207 states and 234 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 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) [2022-11-22 02:08:44,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:44,448 INFO L93 Difference]: Finished difference Result 374 states and 441 transitions. [2022-11-22 02:08:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 02:08:44,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 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 [2022-11-22 02:08:44,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:44,449 INFO L225 Difference]: With dead ends: 374 [2022-11-22 02:08:44,449 INFO L226 Difference]: Without dead ends: 299 [2022-11-22 02:08:44,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:08:44,450 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 802 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:44,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 641 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:08:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-11-22 02:08:44,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 203. [2022-11-22 02:08:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 200 states have (on average 1.145) internal successors, (229), 202 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:08:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 229 transitions. [2022-11-22 02:08:44,932 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 229 transitions. Word has length 119 [2022-11-22 02:08:44,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:44,932 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 229 transitions. [2022-11-22 02:08:44,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 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) [2022-11-22 02:08:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 229 transitions. [2022-11-22 02:08:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:08:44,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:44,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:44,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-22 02:08:44,934 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:08:44,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:44,934 INFO L85 PathProgramCache]: Analyzing trace with hash 646441976, now seen corresponding path program 1 times [2022-11-22 02:08:44,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:44,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423917967] [2022-11-22 02:08:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:44,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:08:49,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:49,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423917967] [2022-11-22 02:08:49,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423917967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:49,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:49,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-11-22 02:08:49,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391404351] [2022-11-22 02:08:49,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:49,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-22 02:08:49,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:49,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-22 02:08:49,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 02:08:49,349 INFO L87 Difference]: Start difference. First operand 203 states and 229 transitions. Second operand has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:06,079 INFO L93 Difference]: Finished difference Result 940 states and 1120 transitions. [2022-11-22 02:09:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-22 02:09:06,080 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-22 02:09:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:06,081 INFO L225 Difference]: With dead ends: 940 [2022-11-22 02:09:06,081 INFO L226 Difference]: Without dead ends: 932 [2022-11-22 02:09:06,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 890 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=722, Invalid=4108, Unknown=0, NotChecked=0, Total=4830 [2022-11-22 02:09:06,082 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 3153 mSDsluCounter, 14470 mSDsCounter, 0 mSdLazyCounter, 7553 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3153 SdHoareTripleChecker+Valid, 15243 SdHoareTripleChecker+Invalid, 7569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 7553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:06,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3153 Valid, 15243 Invalid, 7569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 7553 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-22 02:09:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-11-22 02:09:06,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 232. [2022-11-22 02:09:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 229 states have (on average 1.1528384279475983) internal successors, (264), 231 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:06,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 264 transitions. [2022-11-22 02:09:06,558 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 264 transitions. Word has length 120 [2022-11-22 02:09:06,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:06,558 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 264 transitions. [2022-11-22 02:09:06,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 264 transitions. [2022-11-22 02:09:06,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:09:06,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:06,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:06,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-22 02:09:06,560 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:06,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 303068725, now seen corresponding path program 1 times [2022-11-22 02:09:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:06,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851293155] [2022-11-22 02:09:06,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:07,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:07,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851293155] [2022-11-22 02:09:07,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851293155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:07,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:07,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:09:07,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223567586] [2022-11-22 02:09:07,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:07,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:09:07,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:07,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:09:07,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:09:07,471 INFO L87 Difference]: Start difference. First operand 232 states and 264 transitions. Second operand has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:10,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:10,391 INFO L93 Difference]: Finished difference Result 430 states and 516 transitions. [2022-11-22 02:09:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:09:10,392 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-22 02:09:10,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:10,392 INFO L225 Difference]: With dead ends: 430 [2022-11-22 02:09:10,392 INFO L226 Difference]: Without dead ends: 424 [2022-11-22 02:09:10,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:09:10,393 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 1146 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:10,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 1841 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:09:10,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-22 02:09:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 226. [2022-11-22 02:09:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.1517857142857142) internal successors, (258), 225 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 258 transitions. [2022-11-22 02:09:10,863 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 258 transitions. Word has length 120 [2022-11-22 02:09:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:10,864 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 258 transitions. [2022-11-22 02:09:10,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 258 transitions. [2022-11-22 02:09:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 02:09:10,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:10,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:10,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-22 02:09:10,865 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1010081928, now seen corresponding path program 1 times [2022-11-22 02:09:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:10,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404169247] [2022-11-22 02:09:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:11,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:11,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404169247] [2022-11-22 02:09:11,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404169247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:11,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:11,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:09:11,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493435250] [2022-11-22 02:09:11,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:11,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:09:11,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:11,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:09:11,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:09:11,616 INFO L87 Difference]: Start difference. First operand 226 states and 258 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:14,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:14,331 INFO L93 Difference]: Finished difference Result 442 states and 533 transitions. [2022-11-22 02:09:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:09:14,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-11-22 02:09:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:14,333 INFO L225 Difference]: With dead ends: 442 [2022-11-22 02:09:14,333 INFO L226 Difference]: Without dead ends: 427 [2022-11-22 02:09:14,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:09:14,333 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1093 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:14,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 2180 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:09:14,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-11-22 02:09:14,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 185. [2022-11-22 02:09:14,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.141304347826087) internal successors, (210), 184 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 210 transitions. [2022-11-22 02:09:14,935 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 210 transitions. Word has length 121 [2022-11-22 02:09:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:14,935 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 210 transitions. [2022-11-22 02:09:14,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 210 transitions. [2022-11-22 02:09:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-22 02:09:14,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:14,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:14,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-22 02:09:14,937 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:14,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash 858246386, now seen corresponding path program 1 times [2022-11-22 02:09:14,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:14,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572158355] [2022-11-22 02:09:14,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:14,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:15,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:15,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572158355] [2022-11-22 02:09:15,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572158355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:15,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:15,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:15,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179362401] [2022-11-22 02:09:15,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:15,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:15,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:15,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:15,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:15,087 INFO L87 Difference]: Start difference. First operand 185 states and 210 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:16,017 INFO L93 Difference]: Finished difference Result 299 states and 358 transitions. [2022-11-22 02:09:16,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:09:16,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-11-22 02:09:16,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:16,018 INFO L225 Difference]: With dead ends: 299 [2022-11-22 02:09:16,019 INFO L226 Difference]: Without dead ends: 242 [2022-11-22 02:09:16,019 INFO L412 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 [2022-11-22 02:09:16,019 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 85 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:16,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:09:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-22 02:09:16,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 236. [2022-11-22 02:09:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.1787234042553192) internal successors, (277), 235 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 277 transitions. [2022-11-22 02:09:16,752 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 277 transitions. Word has length 143 [2022-11-22 02:09:16,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:16,752 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 277 transitions. [2022-11-22 02:09:16,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 277 transitions. [2022-11-22 02:09:16,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-22 02:09:16,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:16,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:16,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-22 02:09:16,753 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1491162867, now seen corresponding path program 1 times [2022-11-22 02:09:16,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:16,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412336140] [2022-11-22 02:09:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:16,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:16,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:16,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412336140] [2022-11-22 02:09:16,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412336140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:16,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:16,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:16,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702624088] [2022-11-22 02:09:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:16,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:16,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:16,957 INFO L87 Difference]: Start difference. First operand 236 states and 277 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:18,437 INFO L93 Difference]: Finished difference Result 452 states and 559 transitions. [2022-11-22 02:09:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:09:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 [2022-11-22 02:09:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:18,438 INFO L225 Difference]: With dead ends: 452 [2022-11-22 02:09:18,438 INFO L226 Difference]: Without dead ends: 344 [2022-11-22 02:09:18,439 INFO L412 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 [2022-11-22 02:09:18,439 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 78 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:18,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:09:18,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-22 02:09:19,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 334. [2022-11-22 02:09:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.2162162162162162) internal successors, (405), 333 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 405 transitions. [2022-11-22 02:09:19,798 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 405 transitions. Word has length 146 [2022-11-22 02:09:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:19,799 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 405 transitions. [2022-11-22 02:09:19,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 405 transitions. [2022-11-22 02:09:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-22 02:09:19,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:19,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:19,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-22 02:09:19,800 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:19,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:19,800 INFO L85 PathProgramCache]: Analyzing trace with hash 390468221, now seen corresponding path program 1 times [2022-11-22 02:09:19,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:19,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304417244] [2022-11-22 02:09:19,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:19,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:19,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:19,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304417244] [2022-11-22 02:09:19,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304417244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:19,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:19,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:19,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969435938] [2022-11-22 02:09:19,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:19,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:19,935 INFO L87 Difference]: Start difference. First operand 334 states and 405 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:22,713 INFO L93 Difference]: Finished difference Result 746 states and 943 transitions. [2022-11-22 02:09:22,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:09:22,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2022-11-22 02:09:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:22,715 INFO L225 Difference]: With dead ends: 746 [2022-11-22 02:09:22,715 INFO L226 Difference]: Without dead ends: 540 [2022-11-22 02:09:22,715 INFO L412 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 [2022-11-22 02:09:22,715 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 71 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:22,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:09:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-11-22 02:09:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 522. [2022-11-22 02:09:25,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 521 states have (on average 1.2456813819577734) internal successors, (649), 521 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 649 transitions. [2022-11-22 02:09:25,749 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 649 transitions. Word has length 149 [2022-11-22 02:09:25,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:25,749 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 649 transitions. [2022-11-22 02:09:25,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 649 transitions. [2022-11-22 02:09:25,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-22 02:09:25,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:25,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:25,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-22 02:09:25,751 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:25,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:25,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1178122107, now seen corresponding path program 1 times [2022-11-22 02:09:25,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:25,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158315662] [2022-11-22 02:09:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:25,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:25,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:25,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158315662] [2022-11-22 02:09:25,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158315662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:25,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:25,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:25,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278389270] [2022-11-22 02:09:25,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:25,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:25,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:25,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:25,973 INFO L87 Difference]: Start difference. First operand 522 states and 649 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:31,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:31,591 INFO L93 Difference]: Finished difference Result 1310 states and 1675 transitions. [2022-11-22 02:09:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:09:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2022-11-22 02:09:31,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:31,593 INFO L225 Difference]: With dead ends: 1310 [2022-11-22 02:09:31,593 INFO L226 Difference]: Without dead ends: 916 [2022-11-22 02:09:31,593 INFO L412 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 [2022-11-22 02:09:31,594 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 64 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:31,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:09:31,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-11-22 02:09:37,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 882. [2022-11-22 02:09:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.2633371169125993) internal successors, (1113), 881 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1113 transitions. [2022-11-22 02:09:37,264 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1113 transitions. Word has length 152 [2022-11-22 02:09:37,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:37,265 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1113 transitions. [2022-11-22 02:09:37,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1113 transitions. [2022-11-22 02:09:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-22 02:09:37,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:37,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:37,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-22 02:09:37,266 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:37,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:37,266 INFO L85 PathProgramCache]: Analyzing trace with hash -631866730, now seen corresponding path program 1 times [2022-11-22 02:09:37,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:37,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117328214] [2022-11-22 02:09:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:37,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:37,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:37,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117328214] [2022-11-22 02:09:37,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117328214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:37,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:37,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:37,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889988528] [2022-11-22 02:09:37,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:37,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:37,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:37,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:37,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:37,467 INFO L87 Difference]: Start difference. First operand 882 states and 1113 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:48,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:48,248 INFO L93 Difference]: Finished difference Result 2390 states and 3067 transitions. [2022-11-22 02:09:48,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:09:48,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-11-22 02:09:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:48,251 INFO L225 Difference]: With dead ends: 2390 [2022-11-22 02:09:48,251 INFO L226 Difference]: Without dead ends: 1636 [2022-11-22 02:09:48,252 INFO L412 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 [2022-11-22 02:09:48,252 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 57 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:48,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:09:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-11-22 02:09:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1570. [2022-11-22 02:09:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 1.2702358189929892) internal successors, (1993), 1569 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:58,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1993 transitions. [2022-11-22 02:09:58,496 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1993 transitions. Word has length 155 [2022-11-22 02:09:58,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:58,496 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 1993 transitions. [2022-11-22 02:09:58,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:09:58,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1993 transitions. [2022-11-22 02:09:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-22 02:09:58,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:58,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:09:58,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-22 02:09:58,497 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:09:58,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2049382474, now seen corresponding path program 1 times [2022-11-22 02:09:58,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:58,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123896022] [2022-11-22 02:09:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:58,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:09:58,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:58,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123896022] [2022-11-22 02:09:58,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123896022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:58,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:58,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:58,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264497517] [2022-11-22 02:09:58,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:58,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:58,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:58,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:58,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:58,700 INFO L87 Difference]: Start difference. First operand 1570 states and 1993 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 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) [2022-11-22 02:10:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:10:17,986 INFO L93 Difference]: Finished difference Result 4454 states and 5707 transitions. [2022-11-22 02:10:17,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:10:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 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) Word has length 158 [2022-11-22 02:10:17,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:10:17,990 INFO L225 Difference]: With dead ends: 4454 [2022-11-22 02:10:17,990 INFO L226 Difference]: Without dead ends: 3012 [2022-11-22 02:10:17,992 INFO L412 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 [2022-11-22 02:10:17,992 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 50 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:10:17,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:10:17,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2022-11-22 02:10:36,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2882. [2022-11-22 02:10:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2881 states have (on average 1.2693509198195072) internal successors, (3657), 2881 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:10:36,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 3657 transitions. [2022-11-22 02:10:36,474 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 3657 transitions. Word has length 158 [2022-11-22 02:10:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:10:36,474 INFO L495 AbstractCegarLoop]: Abstraction has 2882 states and 3657 transitions. [2022-11-22 02:10:36,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 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) [2022-11-22 02:10:36,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 3657 transitions. [2022-11-22 02:10:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-22 02:10:36,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:10:36,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:10:36,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-11-22 02:10:36,475 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:10:36,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:10:36,476 INFO L85 PathProgramCache]: Analyzing trace with hash -453316267, now seen corresponding path program 1 times [2022-11-22 02:10:36,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:10:36,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050682478] [2022-11-22 02:10:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:36,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:10:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:10:36,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:10:36,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050682478] [2022-11-22 02:10:36,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050682478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:10:36,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:10:36,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:10:36,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82076127] [2022-11-22 02:10:36,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:10:36,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:10:36,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:10:36,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:10:36,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:10:36,622 INFO L87 Difference]: Start difference. First operand 2882 states and 3657 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:13,445 INFO L93 Difference]: Finished difference Result 8390 states and 10699 transitions. [2022-11-22 02:11:13,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:11:13,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2022-11-22 02:11:13,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:13,451 INFO L225 Difference]: With dead ends: 8390 [2022-11-22 02:11:13,451 INFO L226 Difference]: Without dead ends: 5636 [2022-11-22 02:11:13,454 INFO L412 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 [2022-11-22 02:11:13,454 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 39 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:13,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 402 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:11:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5636 states. [2022-11-22 02:11:49,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5636 to 5378. [2022-11-22 02:11:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 1.2633438720476102) internal successors, (6793), 5377 states have internal predecessors, (6793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:49,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 6793 transitions. [2022-11-22 02:11:49,397 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 6793 transitions. Word has length 161 [2022-11-22 02:11:49,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:49,397 INFO L495 AbstractCegarLoop]: Abstraction has 5378 states and 6793 transitions. [2022-11-22 02:11:49,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:49,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 6793 transitions. [2022-11-22 02:11:49,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-22 02:11:49,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:49,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:11:49,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-22 02:11:49,399 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:11:49,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:49,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1257884166, now seen corresponding path program 1 times [2022-11-22 02:11:49,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:49,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089996228] [2022-11-22 02:11:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:49,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:49,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:49,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089996228] [2022-11-22 02:11:49,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089996228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:49,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:49,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:11:49,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614444564] [2022-11-22 02:11:49,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:49,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:11:49,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:11:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:11:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:11:49,658 INFO L87 Difference]: Start difference. First operand 5378 states and 6793 transitions. Second operand has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 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) [2022-11-22 02:13:38,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:38,496 INFO L93 Difference]: Finished difference Result 21329 states and 27018 transitions. [2022-11-22 02:13:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:13:38,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 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) Word has length 164 [2022-11-22 02:13:38,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:38,519 INFO L225 Difference]: With dead ends: 21329 [2022-11-22 02:13:38,520 INFO L226 Difference]: Without dead ends: 16079 [2022-11-22 02:13:38,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:13:38,528 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1612 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:38,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 3309 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:13:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16079 states. [2022-11-22 02:14:27,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16079 to 7170. [2022-11-22 02:14:27,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.2510810433812247) internal successors, (8969), 7169 states have internal predecessors, (8969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:14:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 8969 transitions. [2022-11-22 02:14:27,432 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 8969 transitions. Word has length 164 [2022-11-22 02:14:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:14:27,433 INFO L495 AbstractCegarLoop]: Abstraction has 7170 states and 8969 transitions. [2022-11-22 02:14:27,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 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) [2022-11-22 02:14:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 8969 transitions. [2022-11-22 02:14:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-22 02:14:27,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:27,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:14:27,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-22 02:14:27,434 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:14:27,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1062419323, now seen corresponding path program 1 times [2022-11-22 02:14:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:27,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572010210] [2022-11-22 02:14:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:27,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:14:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:14:27,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:14:27,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572010210] [2022-11-22 02:14:27,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572010210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:14:27,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:14:27,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:14:27,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002042368] [2022-11-22 02:14:27,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:14:27,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:14:27,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:14:27,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:14:27,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:14:27,850 INFO L87 Difference]: Start difference. First operand 7170 states and 8969 transitions. Second operand has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:15:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:15,487 INFO L93 Difference]: Finished difference Result 14214 states and 17803 transitions. [2022-11-22 02:15:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:15:15,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-11-22 02:15:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:15,496 INFO L225 Difference]: With dead ends: 14214 [2022-11-22 02:15:15,496 INFO L226 Difference]: Without dead ends: 7172 [2022-11-22 02:15:15,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-11-22 02:15:15,501 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1104 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:15,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 621 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:15:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7172 states.