./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI --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 64bit --witnessprinter.graph.data.programhash 669a2a9ff3eee6fac1a30d2be9685f0a9602e4c65b5ab7659f35d3f97dedccb1 --- 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-5e519f3 [2022-11-03 02:22:58,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:22:58,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:22:58,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:22:58,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:22:58,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:22:58,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:22:58,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:22:58,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:22:58,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:22:58,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:22:58,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:22:58,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:22:58,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:22:58,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:22:58,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:22:58,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:22:58,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:22:58,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:22:58,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:22:58,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:22:58,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:22:58,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:22:58,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:22:58,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:22:58,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:22:58,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:22:58,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:22:58,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:22:58,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:22:58,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:22:58,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:22:58,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:22:58,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:22:58,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:22:58,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:22:58,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:22:58,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:22:58,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:22:58,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:22:58,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:22:58,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:22:58,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:22:58,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:22:58,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:22:58,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:22:58,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:22:58,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:22:58,453 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:22:58,453 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:22:58,454 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:22:58,454 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:22:58,455 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:22:58,455 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:22:58,455 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:22:58,455 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:22:58,456 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:22:58,456 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:22:58,456 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:22:58,456 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:22:58,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:22:58,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:22:58,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:22:58,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:22:58,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:22:58,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:22:58,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:22:58,458 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:22:58,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:22:58,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:22:58,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:22:58,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:58,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:22:58,460 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:22:58,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:22:58,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:22:58,461 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:22:58,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:22:58,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:22:58,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:22:58,461 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_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 669a2a9ff3eee6fac1a30d2be9685f0a9602e4c65b5ab7659f35d3f97dedccb1 [2022-11-03 02:22:58,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:22:58,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:22:58,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:22:58,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:22:58,783 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:22:58,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-03 02:22:58,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/data/43070b75d/95a18e03776a4b6799442ea4448bacf5/FLAG29ee86c0a [2022-11-03 02:22:59,929 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:22:59,930 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-03 02:23:00,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/data/43070b75d/95a18e03776a4b6799442ea4448bacf5/FLAG29ee86c0a [2022-11-03 02:23:00,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/data/43070b75d/95a18e03776a4b6799442ea4448bacf5 [2022-11-03 02:23:00,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:23:00,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:23:00,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:23:00,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:23:00,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:23:00,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:23:00" (1/1) ... [2022-11-03 02:23:00,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35954a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:00, skipping insertion in model container [2022-11-03 02:23:00,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:23:00" (1/1) ... [2022-11-03 02:23:00,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:23:00,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:23:06,751 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615497,615510] [2022-11-03 02:23:06,754 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615644,615657] [2022-11-03 02:23:06,755 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615783,615796] [2022-11-03 02:23:06,755 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615941,615954] [2022-11-03 02:23:06,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:23:06,887 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:23:07,535 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615497,615510] [2022-11-03 02:23:07,535 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615644,615657] [2022-11-03 02:23:07,536 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615783,615796] [2022-11-03 02:23:07,537 WARN L230 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_5a6fe3c0-edf8-461d-ac15-17252916308b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[615941,615954] [2022-11-03 02:23:07,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:23:08,135 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:23:08,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08 WrapperNode [2022-11-03 02:23:08,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:23:08,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:23:08,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:23:08,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:23:08,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:08,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:08,872 INFO L138 Inliner]: procedures = 690, calls = 7447, calls flagged for inlining = 379, calls inlined = 358, statements flattened = 15777 [2022-11-03 02:23:08,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:23:08,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:23:08,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:23:08,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:23:08,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:08,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:08,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:08,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:09,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:09,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:09,712 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:09,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:09,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:23:09,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:23:09,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:23:09,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:23:09,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (1/1) ... [2022-11-03 02:23:09,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:23:09,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:09,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:23:09,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6fe3c0-edf8-461d-ac15-17252916308b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:23:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:23:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:23:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 02:23:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 02:23:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 02:23:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:23:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:23:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 02:23:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 02:23:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-03 02:23:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-03 02:23:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 02:23:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 02:23:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 02:23:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 02:23:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-03 02:23:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-03 02:23:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:23:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:23:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-03 02:23:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-03 02:23:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-03 02:23:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-03 02:23:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-03 02:23:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-03 02:23:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-03 02:23:10,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-03 02:23:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:23:10,078 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:23:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-03 02:23:10,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-03 02:23:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-03 02:23:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-03 02:23:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 02:23:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 02:23:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:23:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:23:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-03 02:23:10,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-03 02:23:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:23:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:23:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 02:23:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 02:23:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:23:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:23:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-03 02:23:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-03 02:23:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2022-11-03 02:23:10,084 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2022-11-03 02:23:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:23:10,084 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:23:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-03 02:23:10,085 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-03 02:23:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-03 02:23:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-03 02:23:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-03 02:23:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-03 02:23:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2022-11-03 02:23:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2022-11-03 02:23:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-03 02:23:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-03 02:23:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-03 02:23:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-03 02:23:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:23:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:23:10,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:23:10,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:23:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-03 02:23:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-03 02:23:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:23:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:23:10,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:23:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:23:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-03 02:23:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-03 02:23:10,090 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:23:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:23:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:23:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:23:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-03 02:23:10,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-03 02:23:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-03 02:23:10,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-03 02:23:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:23:10,100 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:23:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:23:10,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:23:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:23:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 02:23:10,102 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 02:23:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-03 02:23:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-03 02:23:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-03 02:23:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-03 02:23:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-03 02:23:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-03 02:23:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-03 02:23:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-03 02:23:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-03 02:23:10,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-03 02:23:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 02:23:10,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 02:23:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-03 02:23:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-03 02:23:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:23:10,109 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:23:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-03 02:23:10,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-03 02:23:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-03 02:23:10,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-03 02:23:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-03 02:23:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-03 02:23:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:23:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:23:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-03 02:23:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-03 02:23:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:23:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:23:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2022-11-03 02:23:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2022-11-03 02:23:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-03 02:23:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-03 02:23:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-03 02:23:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-03 02:23:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:23:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-03 02:23:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-03 02:23:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 02:23:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 02:23:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:23:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:23:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:23:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:23:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-03 02:23:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-03 02:23:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-03 02:23:10,121 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-03 02:23:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-03 02:23:10,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-03 02:23:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:23:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-03 02:23:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-03 02:23:10,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:23:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:23:10,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:23:10,122 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:23:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:23:10,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:23:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:23:10,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:23:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:23:10,123 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 02:23:10,123 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 02:23:10,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:23:10,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:23:10,124 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-03 02:23:10,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-03 02:23:10,124 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-03 02:23:10,124 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-03 02:23:10,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:23:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:23:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-03 02:23:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-03 02:23:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-03 02:23:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-03 02:23:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-03 02:23:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-03 02:23:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-03 02:23:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-03 02:23:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-03 02:23:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-03 02:23:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:23:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:23:10,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:23:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:23:10,127 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-03 02:23:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-03 02:23:10,127 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-03 02:23:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-03 02:23:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-03 02:23:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-03 02:23:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:23:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-03 02:23:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-03 02:23:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:23:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:23:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:23:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:23:10,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:23:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:23:10,131 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-03 02:23:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-03 02:23:10,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 02:23:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 02:23:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-03 02:23:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-03 02:23:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:23:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:23:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:23:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:23:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:23:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:23:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:23:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:23:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:23:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-03 02:23:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-03 02:23:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-03 02:23:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-03 02:23:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:23:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:23:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:23:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:23:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-03 02:23:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-03 02:23:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:23:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:23:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2022-11-03 02:23:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2022-11-03 02:23:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-03 02:23:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-03 02:23:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:23:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:23:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-03 02:23:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-03 02:23:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:23:10,137 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:23:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-03 02:23:10,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-03 02:23:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:23:10,137 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:23:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 02:23:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 02:23:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:23:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:23:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 02:23:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 02:23:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-03 02:23:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-03 02:23:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-03 02:23:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-03 02:23:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 02:23:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 02:23:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-03 02:23:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-03 02:23:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:23:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:23:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:23:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:23:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:23:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:23:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-03 02:23:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-03 02:23:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 02:23:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 02:23:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-03 02:23:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-03 02:23:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-03 02:23:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-03 02:23:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:23:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:23:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-03 02:23:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-03 02:23:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:23:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:23:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:23:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:23:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-03 02:23:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-03 02:23:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 02:23:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 02:23:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:23:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:23:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-03 02:23:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-03 02:23:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 02:23:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 02:23:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 02:23:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 02:23:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:23:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:23:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-03 02:23:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-03 02:23:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-03 02:23:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-03 02:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:23:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-03 02:23:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-03 02:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-03 02:23:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-03 02:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:23:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-03 02:23:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-03 02:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-03 02:23:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-03 02:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-03 02:23:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-03 02:23:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:23:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:23:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 02:23:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 02:23:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:23:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:23:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 02:23:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 02:23:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-03 02:23:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-03 02:23:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:23:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:23:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:23:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:23:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-03 02:23:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-03 02:23:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-03 02:23:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-03 02:23:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 02:23:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 02:23:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-03 02:23:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-03 02:23:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-03 02:23:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-03 02:23:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 02:23:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 02:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-03 02:23:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-03 02:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:23:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-03 02:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-03 02:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 02:23:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 02:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-03 02:23:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-03 02:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:23:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-03 02:23:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-03 02:23:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:23:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 02:23:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 02:23:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-03 02:23:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-03 02:23:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-03 02:23:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-03 02:23:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 02:23:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 02:23:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 02:23:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 02:23:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:23:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-03 02:23:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-03 02:23:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-03 02:23:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-03 02:23:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:23:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:23:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-03 02:23:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-03 02:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:23:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:23:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 02:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 02:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-03 02:23:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-03 02:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-03 02:23:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-03 02:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-03 02:23:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-03 02:23:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-03 02:23:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-03 02:23:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2022-11-03 02:23:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2022-11-03 02:23:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 02:23:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 02:23:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:23:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:23:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 02:23:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 02:23:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-03 02:23:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-03 02:23:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-03 02:23:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-03 02:23:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-03 02:23:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-03 02:23:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 02:23:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 02:23:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:23:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:23:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 02:23:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 02:23:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-03 02:23:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-03 02:23:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:23:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:23:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-03 02:23:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-03 02:23:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:23:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-03 02:23:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-03 02:23:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:23:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:23:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-03 02:23:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-03 02:23:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:23:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:23:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:23:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:23:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-03 02:23:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-03 02:23:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-03 02:23:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-03 02:23:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:23:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:23:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-03 02:23:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-03 02:23:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-03 02:23:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-03 02:23:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:23:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:23:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-03 02:23:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-03 02:23:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-03 02:23:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-03 02:23:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-03 02:23:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-03 02:23:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-03 02:23:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-03 02:23:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 02:23:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 02:23:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 02:23:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 02:23:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-03 02:23:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-03 02:23:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-03 02:23:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-03 02:23:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:23:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:23:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-03 02:23:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-03 02:23:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-03 02:23:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-03 02:23:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:23:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:23:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-03 02:23:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-03 02:23:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:23:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:23:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-03 02:23:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-03 02:23:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-03 02:23:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-03 02:23:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-03 02:23:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-03 02:23:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-03 02:23:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-03 02:23:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:23:10,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:23:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:23:10,228 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:23:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 02:23:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:23:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-03 02:23:10,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-03 02:23:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-03 02:23:10,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-03 02:23:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-03 02:23:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-03 02:23:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:23:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:23:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-11-03 02:23:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-11-03 02:23:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-03 02:23:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-03 02:23:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-03 02:23:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-03 02:23:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-03 02:23:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-03 02:23:12,097 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:23:12,102 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:23:12,239 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:23:34,060 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:23:35,202 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:23:42,050 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:23:42,050 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-03 02:23:42,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:42 BoogieIcfgContainer [2022-11-03 02:23:42,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:23:42,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:23:42,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:23:42,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:23:42,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:23:00" (1/3) ... [2022-11-03 02:23:42,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef8cbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:42, skipping insertion in model container [2022-11-03 02:23:42,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:08" (2/3) ... [2022-11-03 02:23:42,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef8cbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:42, skipping insertion in model container [2022-11-03 02:23:42,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:42" (3/3) ... [2022-11-03 02:23:42,070 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-03 02:23:42,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:23:42,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 02:23:42,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:23:42,234 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;@a3c41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:23:42,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 02:23:42,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 3745 states, 2262 states have (on average 1.3183023872679045) internal successors, (2982), 2325 states have internal predecessors, (2982), 1246 states have call successors, (1246), 236 states have call predecessors, (1246), 235 states have return successors, (1239), 1223 states have call predecessors, (1239), 1239 states have call successors, (1239) [2022-11-03 02:23:42,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-03 02:23:42,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:42,286 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:42,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:42,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:42,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1337038530, now seen corresponding path program 1 times [2022-11-03 02:23:42,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:42,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779144956] [2022-11-03 02:23:42,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:42,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-03 02:23:43,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:43,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779144956] [2022-11-03 02:23:43,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779144956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:43,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:43,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:43,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600198546] [2022-11-03 02:23:43,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:43,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:43,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:43,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:43,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:43,833 INFO L87 Difference]: Start difference. First operand has 3745 states, 2262 states have (on average 1.3183023872679045) internal successors, (2982), 2325 states have internal predecessors, (2982), 1246 states have call successors, (1246), 236 states have call predecessors, (1246), 235 states have return successors, (1239), 1223 states have call predecessors, (1239), 1239 states have call successors, (1239) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 02:23:45,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:48,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:50,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:53,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:57,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:59,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:01,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:05,955 INFO L93 Difference]: Finished difference Result 11082 states and 16192 transitions. [2022-11-03 02:24:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:05,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 200 [2022-11-03 02:24:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:06,032 INFO L225 Difference]: With dead ends: 11082 [2022-11-03 02:24:06,033 INFO L226 Difference]: Without dead ends: 7363 [2022-11-03 02:24:06,056 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 [2022-11-03 02:24:06,059 INFO L413 NwaCegarLoop]: 6112 mSDtfsCounter, 5320 mSDsluCounter, 5412 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5326 SdHoareTripleChecker+Valid, 10765 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:06,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5326 Valid, 10765 Invalid, 1614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1603 Invalid, 4 Unknown, 0 Unchecked, 21.5s Time] [2022-11-03 02:24:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7363 states. [2022-11-03 02:24:06,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7363 to 7359. [2022-11-03 02:24:06,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7359 states, 4453 states have (on average 1.316640467100831) internal successors, (5863), 4580 states have internal predecessors, (5863), 2437 states have call successors, (2437), 468 states have call predecessors, (2437), 467 states have return successors, (2440), 2400 states have call predecessors, (2440), 2434 states have call successors, (2440) [2022-11-03 02:24:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7359 states to 7359 states and 10740 transitions. [2022-11-03 02:24:06,586 INFO L78 Accepts]: Start accepts. Automaton has 7359 states and 10740 transitions. Word has length 200 [2022-11-03 02:24:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:06,587 INFO L495 AbstractCegarLoop]: Abstraction has 7359 states and 10740 transitions. [2022-11-03 02:24:06,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 02:24:06,588 INFO L276 IsEmpty]: Start isEmpty. Operand 7359 states and 10740 transitions. [2022-11-03 02:24:06,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-03 02:24:06,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:06,602 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:06,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:24:06,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:06,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:06,604 INFO L85 PathProgramCache]: Analyzing trace with hash -553416049, now seen corresponding path program 1 times [2022-11-03 02:24:06,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:06,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975642285] [2022-11-03 02:24:06,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:06,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2022-11-03 02:24:07,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:07,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975642285] [2022-11-03 02:24:07,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975642285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:07,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:07,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:07,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675671287] [2022-11-03 02:24:07,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:07,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:07,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:07,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:07,644 INFO L87 Difference]: Start difference. First operand 7359 states and 10740 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-03 02:24:13,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:16,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:20,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:22,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:24,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:30,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:30,331 INFO L93 Difference]: Finished difference Result 17457 states and 25484 transitions. [2022-11-03 02:24:30,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:30,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 237 [2022-11-03 02:24:30,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:30,399 INFO L225 Difference]: With dead ends: 17457 [2022-11-03 02:24:30,399 INFO L226 Difference]: Without dead ends: 10135 [2022-11-03 02:24:30,436 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 [2022-11-03 02:24:30,441 INFO L413 NwaCegarLoop]: 6214 mSDtfsCounter, 4672 mSDsluCounter, 5376 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4674 SdHoareTripleChecker+Valid, 10835 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:30,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4674 Valid, 10835 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1701 Invalid, 3 Unknown, 0 Unchecked, 22.1s Time] [2022-11-03 02:24:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2022-11-03 02:24:30,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 10127. [2022-11-03 02:24:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10127 states, 6183 states have (on average 1.3215267669416142) internal successors, (8171), 6363 states have internal predecessors, (8171), 3294 states have call successors, (3294), 650 states have call predecessors, (3294), 648 states have return successors, (3295), 3238 states have call predecessors, (3295), 3291 states have call successors, (3295) [2022-11-03 02:24:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10127 states to 10127 states and 14760 transitions. [2022-11-03 02:24:30,995 INFO L78 Accepts]: Start accepts. Automaton has 10127 states and 14760 transitions. Word has length 237 [2022-11-03 02:24:30,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:30,996 INFO L495 AbstractCegarLoop]: Abstraction has 10127 states and 14760 transitions. [2022-11-03 02:24:30,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-03 02:24:30,997 INFO L276 IsEmpty]: Start isEmpty. Operand 10127 states and 14760 transitions. [2022-11-03 02:24:31,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-03 02:24:31,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:31,008 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:31,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:24:31,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:31,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:31,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2016365819, now seen corresponding path program 1 times [2022-11-03 02:24:31,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:31,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124910198] [2022-11-03 02:24:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:31,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-03 02:24:33,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:33,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124910198] [2022-11-03 02:24:33,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124910198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:33,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:33,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:33,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914834244] [2022-11-03 02:24:33,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:33,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:33,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:33,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:33,025 INFO L87 Difference]: Start difference. First operand 10127 states and 14760 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:24:38,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:41,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:45,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:47,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:54,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:54,221 INFO L93 Difference]: Finished difference Result 11688 states and 16958 transitions. [2022-11-03 02:24:54,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:54,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 242 [2022-11-03 02:24:54,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:54,305 INFO L225 Difference]: With dead ends: 11688 [2022-11-03 02:24:54,305 INFO L226 Difference]: Without dead ends: 11665 [2022-11-03 02:24:54,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:54,318 INFO L413 NwaCegarLoop]: 5433 mSDtfsCounter, 5347 mSDsluCounter, 8479 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5353 SdHoareTripleChecker+Valid, 12734 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:54,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5353 Valid, 12734 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2012 Invalid, 3 Unknown, 0 Unchecked, 20.7s Time] [2022-11-03 02:24:54,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11665 states. [2022-11-03 02:24:54,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11665 to 11661. [2022-11-03 02:24:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11661 states, 7134 states have (on average 1.3193159517802076) internal successors, (9412), 7340 states have internal predecessors, (9412), 3747 states have call successors, (3747), 779 states have call predecessors, (3747), 779 states have return successors, (3755), 3689 states have call predecessors, (3755), 3747 states have call successors, (3755) [2022-11-03 02:24:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11661 states to 11661 states and 16914 transitions. [2022-11-03 02:24:55,034 INFO L78 Accepts]: Start accepts. Automaton has 11661 states and 16914 transitions. Word has length 242 [2022-11-03 02:24:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:55,035 INFO L495 AbstractCegarLoop]: Abstraction has 11661 states and 16914 transitions. [2022-11-03 02:24:55,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:24:55,036 INFO L276 IsEmpty]: Start isEmpty. Operand 11661 states and 16914 transitions. [2022-11-03 02:24:55,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-03 02:24:55,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:55,061 INFO L195 NwaCegarLoop]: trace histogram [24, 19, 19, 19, 19, 19, 19, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:55,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:24:55,061 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:55,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:55,062 INFO L85 PathProgramCache]: Analyzing trace with hash 31411189, now seen corresponding path program 1 times [2022-11-03 02:24:55,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:55,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069298406] [2022-11-03 02:24:55,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:55,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1610 trivial. 0 not checked. [2022-11-03 02:24:56,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:56,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069298406] [2022-11-03 02:24:56,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069298406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:56,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:56,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:56,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771358437] [2022-11-03 02:24:56,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:56,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:56,019 INFO L87 Difference]: Start difference. First operand 11661 states and 16914 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-03 02:24:58,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:00,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:06,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:09,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:11,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:13,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:16,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:19,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:19,787 INFO L93 Difference]: Finished difference Result 23322 states and 33837 transitions. [2022-11-03 02:25:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:19,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 284 [2022-11-03 02:25:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:19,866 INFO L225 Difference]: With dead ends: 23322 [2022-11-03 02:25:19,866 INFO L226 Difference]: Without dead ends: 14871 [2022-11-03 02:25:19,921 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 [2022-11-03 02:25:19,922 INFO L413 NwaCegarLoop]: 8613 mSDtfsCounter, 4648 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4650 SdHoareTripleChecker+Valid, 13209 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:19,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4650 Valid, 13209 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2261 Invalid, 3 Unknown, 0 Unchecked, 23.1s Time] [2022-11-03 02:25:19,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14871 states. [2022-11-03 02:25:20,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14871 to 14869. [2022-11-03 02:25:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14869 states, 9104 states have (on average 1.320408611599297) internal successors, (12021), 9367 states have internal predecessors, (12021), 4777 states have call successors, (4777), 987 states have call predecessors, (4777), 987 states have return successors, (4787), 4702 states have call predecessors, (4787), 4777 states have call successors, (4787) [2022-11-03 02:25:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14869 states to 14869 states and 21585 transitions. [2022-11-03 02:25:20,909 INFO L78 Accepts]: Start accepts. Automaton has 14869 states and 21585 transitions. Word has length 284 [2022-11-03 02:25:20,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:20,910 INFO L495 AbstractCegarLoop]: Abstraction has 14869 states and 21585 transitions. [2022-11-03 02:25:20,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-03 02:25:20,910 INFO L276 IsEmpty]: Start isEmpty. Operand 14869 states and 21585 transitions. [2022-11-03 02:25:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-11-03 02:25:20,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:20,958 INFO L195 NwaCegarLoop]: trace histogram [26, 19, 19, 19, 19, 19, 19, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:20,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:25:20,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:20,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1196975570, now seen corresponding path program 1 times [2022-11-03 02:25:20,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:20,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709037177] [2022-11-03 02:25:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:20,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1821 trivial. 0 not checked. [2022-11-03 02:25:22,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:22,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709037177] [2022-11-03 02:25:22,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709037177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:22,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:22,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:25:22,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849275481] [2022-11-03 02:25:22,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:22,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:25:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:25:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:25:22,634 INFO L87 Difference]: Start difference. First operand 14869 states and 21585 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 02:25:25,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:30,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:33,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:35,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:39,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:41,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:46,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:50,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:52,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:55,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:01,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:01,106 INFO L93 Difference]: Finished difference Result 28611 states and 42099 transitions. [2022-11-03 02:26:01,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:26:01,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 346 [2022-11-03 02:26:01,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:01,254 INFO L225 Difference]: With dead ends: 28611 [2022-11-03 02:26:01,254 INFO L226 Difference]: Without dead ends: 28609 [2022-11-03 02:26:01,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:26:01,273 INFO L413 NwaCegarLoop]: 7147 mSDtfsCounter, 6891 mSDsluCounter, 13789 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 295 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7192 SdHoareTripleChecker+Valid, 19178 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:01,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7192 Valid, 19178 Invalid, 3350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [295 Valid, 3049 Invalid, 6 Unknown, 0 Unchecked, 37.3s Time] [2022-11-03 02:26:01,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28609 states. [2022-11-03 02:26:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28609 to 26758. [2022-11-03 02:26:02,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26758 states, 16441 states have (on average 1.324615291040691) internal successors, (21778), 16903 states have internal predecessors, (21778), 8677 states have call successors, (8677), 1639 states have call predecessors, (8677), 1639 states have return successors, (8699), 8541 states have call predecessors, (8699), 8677 states have call successors, (8699) [2022-11-03 02:26:03,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26758 states to 26758 states and 39154 transitions. [2022-11-03 02:26:03,017 INFO L78 Accepts]: Start accepts. Automaton has 26758 states and 39154 transitions. Word has length 346 [2022-11-03 02:26:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:03,018 INFO L495 AbstractCegarLoop]: Abstraction has 26758 states and 39154 transitions. [2022-11-03 02:26:03,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 02:26:03,018 INFO L276 IsEmpty]: Start isEmpty. Operand 26758 states and 39154 transitions. [2022-11-03 02:26:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-11-03 02:26:03,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:03,192 INFO L195 NwaCegarLoop]: trace histogram [32, 21, 21, 21, 21, 21, 21, 13, 13, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:03,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:26:03,193 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:03,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1657528114, now seen corresponding path program 1 times [2022-11-03 02:26:03,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:03,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671260403] [2022-11-03 02:26:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:03,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2703 trivial. 0 not checked. [2022-11-03 02:26:04,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:04,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671260403] [2022-11-03 02:26:04,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671260403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:04,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:04,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:26:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659546109] [2022-11-03 02:26:04,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:04,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:26:04,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:04,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:26:04,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:04,565 INFO L87 Difference]: Start difference. First operand 26758 states and 39154 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2022-11-03 02:26:07,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:26:10,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:12,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:14,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:25,212 INFO L93 Difference]: Finished difference Result 59454 states and 86796 transitions. [2022-11-03 02:26:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:26:25,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 665 [2022-11-03 02:26:25,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:25,365 INFO L225 Difference]: With dead ends: 59454 [2022-11-03 02:26:25,366 INFO L226 Difference]: Without dead ends: 32733 [2022-11-03 02:26:25,467 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 [2022-11-03 02:26:25,470 INFO L413 NwaCegarLoop]: 5707 mSDtfsCounter, 3082 mSDsluCounter, 5303 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 10296 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:25,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3088 Valid, 10296 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1665 Invalid, 3 Unknown, 0 Unchecked, 19.4s Time] [2022-11-03 02:26:25,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32733 states. [2022-11-03 02:26:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32733 to 32724. [2022-11-03 02:26:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32724 states, 20178 states have (on average 1.3231737535930221) internal successors, (26699), 20728 states have internal predecessors, (26699), 10453 states have call successors, (10453), 2094 states have call predecessors, (10453), 2092 states have return successors, (10487), 10288 states have call predecessors, (10487), 10453 states have call successors, (10487) [2022-11-03 02:26:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32724 states to 32724 states and 47639 transitions. [2022-11-03 02:26:27,428 INFO L78 Accepts]: Start accepts. Automaton has 32724 states and 47639 transitions. Word has length 665 [2022-11-03 02:26:27,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:27,430 INFO L495 AbstractCegarLoop]: Abstraction has 32724 states and 47639 transitions. [2022-11-03 02:26:27,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2022-11-03 02:26:27,430 INFO L276 IsEmpty]: Start isEmpty. Operand 32724 states and 47639 transitions. [2022-11-03 02:26:27,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2022-11-03 02:26:27,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:27,574 INFO L195 NwaCegarLoop]: trace histogram [34, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:27,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:26:27,575 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:27,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:27,575 INFO L85 PathProgramCache]: Analyzing trace with hash -222869875, now seen corresponding path program 1 times [2022-11-03 02:26:27,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:27,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423922048] [2022-11-03 02:26:27,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:27,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3128 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 3058 trivial. 0 not checked. [2022-11-03 02:26:30,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:30,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423922048] [2022-11-03 02:26:30,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423922048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:30,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:30,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:26:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302824722] [2022-11-03 02:26:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:30,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:26:30,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:30,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:26:30,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:26:30,039 INFO L87 Difference]: Start difference. First operand 32724 states and 47639 transitions. Second operand has 5 states, 5 states have (on average 55.6) internal successors, (278), 4 states have internal predecessors, (278), 2 states have call successors, (102), 1 states have call predecessors, (102), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-11-03 02:26:34,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:26:36,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:39,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:42,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:46,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:00,289 INFO L93 Difference]: Finished difference Result 65523 states and 96071 transitions. [2022-11-03 02:27:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:27:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 4 states have internal predecessors, (278), 2 states have call successors, (102), 1 states have call predecessors, (102), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) Word has length 790 [2022-11-03 02:27:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:00,467 INFO L225 Difference]: With dead ends: 65523 [2022-11-03 02:27:00,468 INFO L226 Difference]: Without dead ends: 32836 [2022-11-03 02:27:00,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:27:00,601 INFO L413 NwaCegarLoop]: 4649 mSDtfsCounter, 5 mSDsluCounter, 16215 mSDsCounter, 0 mSdLazyCounter, 3101 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18564 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3101 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:00,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18564 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3101 Invalid, 3 Unknown, 0 Unchecked, 28.9s Time] [2022-11-03 02:27:00,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32836 states. [2022-11-03 02:27:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32836 to 32780. [2022-11-03 02:27:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32780 states, 20220 states have (on average 1.3225024727992087) internal successors, (26741), 20770 states have internal predecessors, (26741), 10453 states have call successors, (10453), 2094 states have call predecessors, (10453), 2106 states have return successors, (10681), 10302 states have call predecessors, (10681), 10453 states have call successors, (10681) [2022-11-03 02:27:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32780 states to 32780 states and 47875 transitions. [2022-11-03 02:27:02,554 INFO L78 Accepts]: Start accepts. Automaton has 32780 states and 47875 transitions. Word has length 790 [2022-11-03 02:27:02,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:02,555 INFO L495 AbstractCegarLoop]: Abstraction has 32780 states and 47875 transitions. [2022-11-03 02:27:02,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 4 states have internal predecessors, (278), 2 states have call successors, (102), 1 states have call predecessors, (102), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-11-03 02:27:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 32780 states and 47875 transitions. [2022-11-03 02:27:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2022-11-03 02:27:02,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:02,692 INFO L195 NwaCegarLoop]: trace histogram [34, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:02,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:27:02,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:27:02,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:02,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1496123530, now seen corresponding path program 1 times [2022-11-03 02:27:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:02,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139041267] [2022-11-03 02:27:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:02,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3128 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2022-11-03 02:27:04,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:04,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139041267] [2022-11-03 02:27:04,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139041267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:04,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:04,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:27:04,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826552175] [2022-11-03 02:27:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:04,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:27:04,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:04,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:27:04,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:27:04,357 INFO L87 Difference]: Start difference. First operand 32780 states and 47875 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (104), 1 states have call predecessors, (104), 1 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2022-11-03 02:27:07,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:27:09,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:12,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:13,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:15,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:26,978 INFO L93 Difference]: Finished difference Result 73359 states and 107096 transitions. [2022-11-03 02:27:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:27:26,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (104), 1 states have call predecessors, (104), 1 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) Word has length 795 [2022-11-03 02:27:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:27,204 INFO L225 Difference]: With dead ends: 73359 [2022-11-03 02:27:27,204 INFO L226 Difference]: Without dead ends: 41382 [2022-11-03 02:27:27,324 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 [2022-11-03 02:27:27,324 INFO L413 NwaCegarLoop]: 7335 mSDtfsCounter, 3185 mSDsluCounter, 5314 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3191 SdHoareTripleChecker+Valid, 11934 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:27,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3191 Valid, 11934 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2042 Invalid, 3 Unknown, 0 Unchecked, 20.9s Time] [2022-11-03 02:27:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41382 states. [2022-11-03 02:27:29,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41382 to 41373. [2022-11-03 02:27:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41373 states, 25618 states have (on average 1.325708486220626) internal successors, (33962), 26302 states have internal predecessors, (33962), 13038 states have call successors, (13038), 2700 states have call predecessors, (13038), 2716 states have return successors, (13330), 12850 states have call predecessors, (13330), 13038 states have call successors, (13330) [2022-11-03 02:27:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41373 states to 41373 states and 60330 transitions. [2022-11-03 02:27:29,253 INFO L78 Accepts]: Start accepts. Automaton has 41373 states and 60330 transitions. Word has length 795 [2022-11-03 02:27:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:29,255 INFO L495 AbstractCegarLoop]: Abstraction has 41373 states and 60330 transitions. [2022-11-03 02:27:29,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (104), 1 states have call predecessors, (104), 1 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2022-11-03 02:27:29,255 INFO L276 IsEmpty]: Start isEmpty. Operand 41373 states and 60330 transitions. [2022-11-03 02:27:29,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2022-11-03 02:27:29,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:29,614 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:29,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:27:29,614 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:27:29,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:29,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1077735892, now seen corresponding path program 1 times [2022-11-03 02:27:29,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:29,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841869164] [2022-11-03 02:27:29,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:29,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:31,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:27:31,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:31,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841869164] [2022-11-03 02:27:31,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841869164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:31,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:31,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:27:31,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791671978] [2022-11-03 02:27:31,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:31,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:27:31,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:31,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:27:31,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:27:31,574 INFO L87 Difference]: Start difference. First operand 41373 states and 60330 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 4 states have internal predecessors, (296), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:27:37,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:27:39,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:27:42,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:44,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:46,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:55,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:01,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:03,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:05,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:17,631 INFO L93 Difference]: Finished difference Result 90336 states and 131596 transitions. [2022-11-03 02:28:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:28:17,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 4 states have internal predecessors, (296), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 817 [2022-11-03 02:28:17,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:17,923 INFO L225 Difference]: With dead ends: 90336 [2022-11-03 02:28:17,923 INFO L226 Difference]: Without dead ends: 49766 [2022-11-03 02:28:18,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:28:18,086 INFO L413 NwaCegarLoop]: 7325 mSDtfsCounter, 3125 mSDsluCounter, 22374 mSDsCounter, 0 mSdLazyCounter, 4480 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 26574 SdHoareTripleChecker+Invalid, 4489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4480 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:18,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3131 Valid, 26574 Invalid, 4489 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4480 Invalid, 8 Unknown, 0 Unchecked, 44.0s Time] [2022-11-03 02:28:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49766 states. [2022-11-03 02:28:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49766 to 49745. [2022-11-03 02:28:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49745 states, 30805 states have (on average 1.3242655413082292) internal successors, (40794), 31620 states have internal predecessors, (40794), 15613 states have call successors, (15613), 3300 states have call predecessors, (15613), 3326 states have return successors, (15980), 15397 states have call predecessors, (15980), 15613 states have call successors, (15980) [2022-11-03 02:28:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49745 states to 49745 states and 72387 transitions. [2022-11-03 02:28:20,228 INFO L78 Accepts]: Start accepts. Automaton has 49745 states and 72387 transitions. Word has length 817 [2022-11-03 02:28:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:20,229 INFO L495 AbstractCegarLoop]: Abstraction has 49745 states and 72387 transitions. [2022-11-03 02:28:20,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 4 states have internal predecessors, (296), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:28:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 49745 states and 72387 transitions. [2022-11-03 02:28:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2022-11-03 02:28:20,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:20,392 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:20,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:28:20,393 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:20,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:20,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2094210334, now seen corresponding path program 1 times [2022-11-03 02:28:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:20,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456520675] [2022-11-03 02:28:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:20,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:28:22,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:22,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456520675] [2022-11-03 02:28:22,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456520675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:22,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:22,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:28:22,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032357066] [2022-11-03 02:28:22,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:22,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:28:22,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:22,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:28:22,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:28:22,477 INFO L87 Difference]: Start difference. First operand 49745 states and 72387 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:28:26,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:28,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:31,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:33,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:35,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:37,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:38,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:41,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:43,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:53,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:56,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:02,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:06,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:08,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:12,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:18,423 INFO L93 Difference]: Finished difference Result 107120 states and 155770 transitions. [2022-11-03 02:29:18,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:29:18,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 818 [2022-11-03 02:29:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:18,809 INFO L225 Difference]: With dead ends: 107120 [2022-11-03 02:29:18,809 INFO L226 Difference]: Without dead ends: 58178 [2022-11-03 02:29:18,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:18,985 INFO L413 NwaCegarLoop]: 7339 mSDtfsCounter, 3139 mSDsluCounter, 22409 mSDsCounter, 0 mSdLazyCounter, 4499 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 26614 SdHoareTripleChecker+Invalid, 4511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4499 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:18,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 26614 Invalid, 4511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4499 Invalid, 9 Unknown, 0 Unchecked, 53.7s Time] [2022-11-03 02:29:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58178 states. [2022-11-03 02:29:20,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58178 to 58157. [2022-11-03 02:29:20,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58157 states, 36024 states have (on average 1.3230624028425495) internal successors, (47662), 36970 states have internal predecessors, (47662), 18192 states have call successors, (18192), 3904 states have call predecessors, (18192), 3940 states have return successors, (18632), 17948 states have call predecessors, (18632), 18192 states have call successors, (18632) [2022-11-03 02:29:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58157 states to 58157 states and 84486 transitions. [2022-11-03 02:29:21,419 INFO L78 Accepts]: Start accepts. Automaton has 58157 states and 84486 transitions. Word has length 818 [2022-11-03 02:29:21,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:21,420 INFO L495 AbstractCegarLoop]: Abstraction has 58157 states and 84486 transitions. [2022-11-03 02:29:21,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:29:21,420 INFO L276 IsEmpty]: Start isEmpty. Operand 58157 states and 84486 transitions. [2022-11-03 02:29:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2022-11-03 02:29:21,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:21,544 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:21,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:29:21,545 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:21,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1425256998, now seen corresponding path program 1 times [2022-11-03 02:29:21,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:21,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737708628] [2022-11-03 02:29:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:21,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:29:24,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:24,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737708628] [2022-11-03 02:29:24,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737708628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:24,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:24,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:29:24,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529452983] [2022-11-03 02:29:24,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:24,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:29:24,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:24,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:29:24,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:24,277 INFO L87 Difference]: Start difference. First operand 58157 states and 84486 transitions. Second operand has 5 states, 5 states have (on average 59.6) internal successors, (298), 4 states have internal predecessors, (298), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:29:28,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:29:31,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:33,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:36,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:37,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:46,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:56,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:58,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:06,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:06,007 INFO L93 Difference]: Finished difference Result 123971 states and 180022 transitions. [2022-11-03 02:30:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:30:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 4 states have internal predecessors, (298), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 819 [2022-11-03 02:30:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:06,411 INFO L225 Difference]: With dead ends: 123971 [2022-11-03 02:30:06,411 INFO L226 Difference]: Without dead ends: 66617 [2022-11-03 02:30:06,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:30:06,562 INFO L413 NwaCegarLoop]: 7338 mSDtfsCounter, 3152 mSDsluCounter, 22391 mSDsCounter, 0 mSdLazyCounter, 4508 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 26600 SdHoareTripleChecker+Invalid, 4517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4508 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:06,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3158 Valid, 26600 Invalid, 4517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 4508 Invalid, 3 Unknown, 0 Unchecked, 39.1s Time] [2022-11-03 02:30:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66617 states. [2022-11-03 02:30:08,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66617 to 66596. [2022-11-03 02:30:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66596 states, 41270 states have (on average 1.3219529924884905) internal successors, (54557), 42347 states have internal predecessors, (54557), 20771 states have call successors, (20771), 4508 states have call predecessors, (20771), 4554 states have return successors, (21284), 20499 states have call predecessors, (21284), 20771 states have call successors, (21284) [2022-11-03 02:30:09,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66596 states to 66596 states and 96612 transitions. [2022-11-03 02:30:09,449 INFO L78 Accepts]: Start accepts. Automaton has 66596 states and 96612 transitions. Word has length 819 [2022-11-03 02:30:09,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:09,463 INFO L495 AbstractCegarLoop]: Abstraction has 66596 states and 96612 transitions. [2022-11-03 02:30:09,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 4 states have internal predecessors, (298), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:30:09,463 INFO L276 IsEmpty]: Start isEmpty. Operand 66596 states and 96612 transitions. [2022-11-03 02:30:09,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2022-11-03 02:30:09,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:09,630 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:09,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:30:09,630 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:09,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1179882172, now seen corresponding path program 1 times [2022-11-03 02:30:09,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:09,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265830396] [2022-11-03 02:30:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:09,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:11,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:30:11,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:11,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265830396] [2022-11-03 02:30:11,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265830396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:11,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:30:11,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:30:11,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314601944] [2022-11-03 02:30:11,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:11,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:30:11,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:11,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:30:11,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:30:11,543 INFO L87 Difference]: Start difference. First operand 66596 states and 96612 transitions. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:30:15,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:30:18,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:21,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:22,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:24,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:26,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:29,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:31,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:38,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:47,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:49,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:57,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:57,564 INFO L93 Difference]: Finished difference Result 140884 states and 204316 transitions. [2022-11-03 02:30:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:30:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 820 [2022-11-03 02:30:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:58,096 INFO L225 Difference]: With dead ends: 140884 [2022-11-03 02:30:58,096 INFO L226 Difference]: Without dead ends: 75091 [2022-11-03 02:30:58,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:30:58,288 INFO L413 NwaCegarLoop]: 7337 mSDtfsCounter, 3203 mSDsluCounter, 22340 mSDsCounter, 0 mSdLazyCounter, 4503 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3209 SdHoareTripleChecker+Valid, 26555 SdHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4503 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:58,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3209 Valid, 26555 Invalid, 4515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 4503 Invalid, 5 Unknown, 0 Unchecked, 43.1s Time] [2022-11-03 02:30:58,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75091 states. [2022-11-03 02:31:00,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75091 to 75070. [2022-11-03 02:31:00,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75070 states, 46537 states have (on average 1.320948922362851) internal successors, (61473), 47745 states have internal predecessors, (61473), 23356 states have call successors, (23356), 5120 states have call predecessors, (23356), 5176 states have return successors, (23942), 23056 states have call predecessors, (23942), 23356 states have call successors, (23942) [2022-11-03 02:31:01,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75070 states to 75070 states and 108771 transitions. [2022-11-03 02:31:01,590 INFO L78 Accepts]: Start accepts. Automaton has 75070 states and 108771 transitions. Word has length 820 [2022-11-03 02:31:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:01,591 INFO L495 AbstractCegarLoop]: Abstraction has 75070 states and 108771 transitions. [2022-11-03 02:31:01,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:31:01,591 INFO L276 IsEmpty]: Start isEmpty. Operand 75070 states and 108771 transitions. [2022-11-03 02:31:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2022-11-03 02:31:01,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:01,783 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:31:01,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:31:01,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:01,784 INFO L85 PathProgramCache]: Analyzing trace with hash -631203977, now seen corresponding path program 1 times [2022-11-03 02:31:01,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:01,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869555273] [2022-11-03 02:31:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:31:03,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:03,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869555273] [2022-11-03 02:31:03,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869555273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:03,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:03,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:31:03,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496387170] [2022-11-03 02:31:03,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:03,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:31:03,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:03,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:31:03,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:31:03,246 INFO L87 Difference]: Start difference. First operand 75070 states and 108771 transitions. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:31:07,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:31:10,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:13,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:16,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:18,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:38,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:47,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:47,734 INFO L93 Difference]: Finished difference Result 157807 states and 228624 transitions. [2022-11-03 02:31:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:31:47,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 821 [2022-11-03 02:31:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:48,251 INFO L225 Difference]: With dead ends: 157807 [2022-11-03 02:31:48,251 INFO L226 Difference]: Without dead ends: 83540 [2022-11-03 02:31:48,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:31:48,454 INFO L413 NwaCegarLoop]: 7338 mSDtfsCounter, 3136 mSDsluCounter, 22406 mSDsCounter, 0 mSdLazyCounter, 4516 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 26613 SdHoareTripleChecker+Invalid, 4527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4516 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:48,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 26613 Invalid, 4527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 4516 Invalid, 4 Unknown, 0 Unchecked, 41.1s Time] [2022-11-03 02:31:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83540 states. [2022-11-03 02:31:51,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83540 to 83519. [2022-11-03 02:31:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83519 states, 51797 states have (on average 1.3201922891287141) internal successors, (68382), 53136 states have internal predecessors, (68382), 25935 states have call successors, (25935), 5720 states have call predecessors, (25935), 5786 states have return successors, (26594), 25607 states have call predecessors, (26594), 25935 states have call successors, (26594) [2022-11-03 02:31:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83519 states to 83519 states and 120911 transitions. [2022-11-03 02:31:52,204 INFO L78 Accepts]: Start accepts. Automaton has 83519 states and 120911 transitions. Word has length 821 [2022-11-03 02:31:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:52,205 INFO L495 AbstractCegarLoop]: Abstraction has 83519 states and 120911 transitions. [2022-11-03 02:31:52,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 4 states have internal predecessors, (300), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:31:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 83519 states and 120911 transitions. [2022-11-03 02:31:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2022-11-03 02:31:52,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:52,889 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:31:52,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:31:52,890 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:52,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:52,890 INFO L85 PathProgramCache]: Analyzing trace with hash 841725967, now seen corresponding path program 1 times [2022-11-03 02:31:52,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:52,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903531242] [2022-11-03 02:31:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:52,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:54,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:31:54,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:54,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903531242] [2022-11-03 02:31:54,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903531242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:54,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:54,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:31:54,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809373765] [2022-11-03 02:31:54,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:54,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:31:54,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:31:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:31:54,291 INFO L87 Difference]: Start difference. First operand 83519 states and 120911 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:31:58,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:32:01,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:03,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:05,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:07,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:09,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:17,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:27,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:28,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:37,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:37,491 INFO L93 Difference]: Finished difference Result 174722 states and 252926 transitions. [2022-11-03 02:32:37,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:32:37,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 822 [2022-11-03 02:32:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:38,101 INFO L225 Difference]: With dead ends: 174722 [2022-11-03 02:32:38,101 INFO L226 Difference]: Without dead ends: 92006 [2022-11-03 02:32:38,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:32:38,351 INFO L413 NwaCegarLoop]: 7338 mSDtfsCounter, 3139 mSDsluCounter, 22404 mSDsCounter, 0 mSdLazyCounter, 4519 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 26611 SdHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4519 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:38,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 26611 Invalid, 4531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 4519 Invalid, 3 Unknown, 0 Unchecked, 39.7s Time] [2022-11-03 02:32:38,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92006 states. [2022-11-03 02:32:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92006 to 91985. [2022-11-03 02:32:41,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91985 states, 57070 states have (on average 1.319502365516033) internal successors, (75304), 58540 states have internal predecessors, (75304), 28514 states have call successors, (28514), 6324 states have call predecessors, (28514), 6400 states have return successors, (29246), 28158 states have call predecessors, (29246), 28514 states have call successors, (29246) [2022-11-03 02:32:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91985 states to 91985 states and 133064 transitions. [2022-11-03 02:32:42,461 INFO L78 Accepts]: Start accepts. Automaton has 91985 states and 133064 transitions. Word has length 822 [2022-11-03 02:32:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:42,462 INFO L495 AbstractCegarLoop]: Abstraction has 91985 states and 133064 transitions. [2022-11-03 02:32:42,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 4 states have internal predecessors, (301), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:32:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 91985 states and 133064 transitions. [2022-11-03 02:32:42,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2022-11-03 02:32:42,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:42,677 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:32:42,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:32:42,677 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:42,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:42,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2109316421, now seen corresponding path program 1 times [2022-11-03 02:32:42,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:42,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187857057] [2022-11-03 02:32:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:42,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:32:44,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:44,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187857057] [2022-11-03 02:32:44,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187857057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:44,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:44,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:32:44,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288889047] [2022-11-03 02:32:44,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:44,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:32:44,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:44,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:32:44,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:32:44,231 INFO L87 Difference]: Start difference. First operand 91985 states and 133064 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:32:48,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:32:50,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:53,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:55,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:57,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:18,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:27,119 INFO L93 Difference]: Finished difference Result 191663 states and 277250 transitions. [2022-11-03 02:33:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:33:27,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 823 [2022-11-03 02:33:27,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:27,557 INFO L225 Difference]: With dead ends: 191663 [2022-11-03 02:33:27,557 INFO L226 Difference]: Without dead ends: 100481 [2022-11-03 02:33:27,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:33:27,992 INFO L413 NwaCegarLoop]: 7338 mSDtfsCounter, 3149 mSDsluCounter, 22394 mSDsCounter, 0 mSdLazyCounter, 4521 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 26602 SdHoareTripleChecker+Invalid, 4534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4521 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:27,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 26602 Invalid, 4534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 4521 Invalid, 3 Unknown, 0 Unchecked, 38.9s Time] [2022-11-03 02:33:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100481 states. [2022-11-03 02:33:31,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100481 to 100460. [2022-11-03 02:33:31,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100460 states, 62352 states have (on average 1.3188831152168334) internal successors, (82235), 63953 states have internal predecessors, (82235), 31093 states have call successors, (31093), 6928 states have call predecessors, (31093), 7014 states have return successors, (31898), 30709 states have call predecessors, (31898), 31093 states have call successors, (31898) [2022-11-03 02:33:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100460 states to 100460 states and 145226 transitions. [2022-11-03 02:33:32,338 INFO L78 Accepts]: Start accepts. Automaton has 100460 states and 145226 transitions. Word has length 823 [2022-11-03 02:33:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:32,338 INFO L495 AbstractCegarLoop]: Abstraction has 100460 states and 145226 transitions. [2022-11-03 02:33:32,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:33:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 100460 states and 145226 transitions. [2022-11-03 02:33:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2022-11-03 02:33:32,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:32,570 INFO L195 NwaCegarLoop]: trace histogram [36, 21, 21, 21, 21, 21, 21, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:32,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:33:32,570 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:32,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash 164654056, now seen corresponding path program 1 times [2022-11-03 02:33:32,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:32,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633261531] [2022-11-03 02:33:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:32,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2022-11-03 02:33:34,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:34,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633261531] [2022-11-03 02:33:34,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633261531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:34,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:34,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:33:34,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413358574] [2022-11-03 02:33:34,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:34,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:33:34,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:34,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:33:34,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:33:34,036 INFO L87 Difference]: Start difference. First operand 100460 states and 145226 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 4 states have internal predecessors, (303), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) [2022-11-03 02:33:38,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:33:41,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:43,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:44,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:46,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:48,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:33:50,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:08,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:11,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:34:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:19,406 INFO L93 Difference]: Finished difference Result 208726 states and 301712 transitions. [2022-11-03 02:34:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:34:19,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 4 states have internal predecessors, (303), 3 states have call successors, (106), 1 states have call predecessors, (106), 2 states have return successors, (106), 4 states have call predecessors, (106), 3 states have call successors, (106) Word has length 824 [2022-11-03 02:34:19,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted.