./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 8393723b 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_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/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_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 07:21:56,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:21:56,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:21:56,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:21:56,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:21:56,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:21:56,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:21:56,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:21:56,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:21:56,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:21:56,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:21:56,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:21:56,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:21:56,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:21:56,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:21:56,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:21:56,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:21:56,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:21:56,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:21:56,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:21:56,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:21:56,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:21:56,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:21:56,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:21:56,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:21:56,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:21:56,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:21:56,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:21:56,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:21:56,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:21:56,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:21:56,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:21:56,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:21:56,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:21:56,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:21:56,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:21:56,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:21:56,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:21:56,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:21:56,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:21:56,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:21:56,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:21:57,022 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:21:57,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:21:57,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:21:57,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:21:57,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:21:57,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:21:57,025 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:21:57,025 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:21:57,025 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:21:57,025 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:21:57,026 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:21:57,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:21:57,027 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:21:57,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:21:57,027 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:21:57,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:21:57,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:21:57,027 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:21:57,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:21:57,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:21:57,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:21:57,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:21:57,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:21:57,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:21:57,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:21:57,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:21:57,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:21:57,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:21:57,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:21:57,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:57,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:21:57,032 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:21:57,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:21:57,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:21:57,033 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:21:57,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:21:57,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:21:57,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:21:57,034 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_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 669a2a9ff3eee6fac1a30d2be9685f0a9602e4c65b5ab7659f35d3f97dedccb1 [2022-11-19 07:21:57,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:21:57,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:21:57,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:21:57,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:21:57,336 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:21:57,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-19 07:21:57,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/data/abb82307d/9ffb9150783a490c8c5067119d4f8b23/FLAGf324ebf5a [2022-11-19 07:21:58,587 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:21:58,588 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-19 07:21:58,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/data/abb82307d/9ffb9150783a490c8c5067119d4f8b23/FLAGf324ebf5a [2022-11-19 07:21:58,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/data/abb82307d/9ffb9150783a490c8c5067119d4f8b23 [2022-11-19 07:21:58,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:21:58,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:21:58,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:58,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:21:58,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:21:58,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:58" (1/1) ... [2022-11-19 07:21:58,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b283fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:58, skipping insertion in model container [2022-11-19 07:21:58,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:58" (1/1) ... [2022-11-19 07:21:58,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:21:59,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:22:05,264 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:05,269 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:05,270 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:05,275 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:05,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:22:05,372 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:22:06,009 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:06,009 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:06,010 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:06,010 WARN L234 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_a8d209b5-a79f-4072-8516-534b220dd58b/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] [2022-11-19 07:22:06,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:22:06,464 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:22:06,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06 WrapperNode [2022-11-19 07:22:06,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:22:06,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:22:06,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:22:06,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:22:06,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:06,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,209 INFO L138 Inliner]: procedures = 690, calls = 7463, calls flagged for inlining = 379, calls inlined = 358, statements flattened = 15832 [2022-11-19 07:22:07,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:22:07,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:22:07,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:22:07,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:22:07,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,842 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:07,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:08,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:22:08,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:22:08,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:22:08,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:22:08,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (1/1) ... [2022-11-19 07:22:08,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:22:08,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:22:08,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:22:08,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d209b5-a79f-4072-8516-534b220dd58b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:22:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 07:22:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 07:22:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-19 07:22:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-19 07:22:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 07:22:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:22:08,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:22:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 07:22:08,173 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 07:22:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-19 07:22:08,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-19 07:22:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-19 07:22:08,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-19 07:22:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 07:22:08,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 07:22:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-19 07:22:08,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-19 07:22:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:22:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:22:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-19 07:22:08,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-19 07:22:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-19 07:22:08,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-19 07:22:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-19 07:22:08,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-19 07:22:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-19 07:22:08,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-19 07:22:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:22:08,205 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:22:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-19 07:22:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-19 07:22:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-19 07:22:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-19 07:22:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-19 07:22:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-19 07:22:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 07:22:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 07:22:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-19 07:22:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-19 07:22:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:22:08,209 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:22:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-19 07:22:08,209 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-19 07:22:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:22:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:22:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-19 07:22:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-19 07:22:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2022-11-19 07:22:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2022-11-19 07:22:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:22:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:22:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-19 07:22:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-19 07:22:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-19 07:22:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-19 07:22:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-19 07:22:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-19 07:22:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2022-11-19 07:22:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2022-11-19 07:22:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-19 07:22:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-19 07:22:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-19 07:22:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-19 07:22:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:22:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:22:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:22:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:22:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-19 07:22:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-19 07:22:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:22:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:22:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:22:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:22:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-19 07:22:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-19 07:22:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:22:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:22:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:22:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:22:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-19 07:22:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-19 07:22:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-19 07:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-19 07:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 07:22:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 07:22:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:22:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:22:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:22:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-19 07:22:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-19 07:22:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-19 07:22:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-19 07:22:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-19 07:22:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-19 07:22:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-19 07:22:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-19 07:22:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-19 07:22:08,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-19 07:22:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-19 07:22:08,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-19 07:22:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-19 07:22:08,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-19 07:22:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 07:22:08,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 07:22:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-19 07:22:08,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-19 07:22:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-19 07:22:08,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-19 07:22:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-19 07:22:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-19 07:22:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:22:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:22:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-19 07:22:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-19 07:22:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:22:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:22:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2022-11-19 07:22:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2022-11-19 07:22:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-19 07:22:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-19 07:22:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-19 07:22:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-19 07:22:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:22:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-19 07:22:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-19 07:22:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-19 07:22:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-19 07:22:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:22:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:22:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:22:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:22:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-19 07:22:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-19 07:22:08,245 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-19 07:22:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-19 07:22:08,245 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-19 07:22:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-19 07:22:08,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:22:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-19 07:22:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-19 07:22:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:22:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:22:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:22:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:22:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:22:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:22:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:22:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:22:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:22:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 07:22:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 07:22:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:22:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:22:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-19 07:22:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-19 07:22:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-19 07:22:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-19 07:22:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:22:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:22:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-19 07:22:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-19 07:22:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-19 07:22:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-19 07:22:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 07:22:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 07:22:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-19 07:22:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-19 07:22:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-19 07:22:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-19 07:22:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:22:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:22:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:22:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:22:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-19 07:22:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-19 07:22:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-19 07:22:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-19 07:22:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-19 07:22:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-19 07:22:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:22:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-19 07:22:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-19 07:22:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:22:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:22:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:22:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:22:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:22:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:22:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-19 07:22:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-19 07:22:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:22:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:22:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-19 07:22:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-19 07:22:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:22:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 07:22:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 07:22:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:22:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:22:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:22:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:22:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:22:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:22:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-19 07:22:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-19 07:22:08,258 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-19 07:22:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-19 07:22:08,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:22:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:22:08,258 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 07:22:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 07:22:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-19 07:22:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-19 07:22:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 07:22:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 07:22:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2022-11-19 07:22:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2022-11-19 07:22:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-19 07:22:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-19 07:22:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:22:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:22:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-19 07:22:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-19 07:22:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 07:22:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 07:22:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-19 07:22:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-19 07:22:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:22:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:22:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:22:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:22:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:22:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:22:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-19 07:22:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-19 07:22:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-19 07:22:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-19 07:22:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-19 07:22:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-19 07:22:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-19 07:22:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-19 07:22:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-19 07:22:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-19 07:22:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:22:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:22:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:22:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:22:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:22:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:22:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-19 07:22:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-19 07:22:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 07:22:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 07:22:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-19 07:22:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-19 07:22:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-19 07:22:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-19 07:22:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 07:22:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 07:22:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-19 07:22:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-19 07:22:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:22:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:22:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:22:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:22:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-19 07:22:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-19 07:22:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-19 07:22:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-19 07:22:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:22:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:22:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-19 07:22:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-19 07:22:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-19 07:22:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-19 07:22:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:22:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:22:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:22:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:22:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-19 07:22:08,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-19 07:22:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 07:22:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-19 07:22:08,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-19 07:22:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 07:22:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 07:22:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-19 07:22:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-19 07:22:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-19 07:22:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-19 07:22:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:22:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:22:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-19 07:22:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-19 07:22:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-19 07:22:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-19 07:22:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-19 07:22:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-19 07:22:08,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:22:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:22:08,281 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-19 07:22:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-19 07:22:08,281 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:22:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:22:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 07:22:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 07:22:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-19 07:22:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-19 07:22:08,283 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:22:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:22:08,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:22:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:22:08,283 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-19 07:22:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-19 07:22:08,284 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-19 07:22:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-19 07:22:08,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 07:22:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 07:22:08,284 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-19 07:22:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-19 07:22:08,285 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-19 07:22:08,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-19 07:22:08,285 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 07:22:08,285 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 07:22:08,285 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-19 07:22:08,285 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-19 07:22:08,286 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:22:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:22:08,286 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-19 07:22:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-19 07:22:08,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:22:08,286 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:22:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:22:08,287 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-19 07:22:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-19 07:22:08,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-19 07:22:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-19 07:22:08,287 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-19 07:22:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-19 07:22:08,288 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:22:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:22:08,288 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-19 07:22:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-19 07:22:08,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:22:08,289 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-19 07:22:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-19 07:22:08,289 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-19 07:22:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-19 07:22:08,289 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-19 07:22:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-19 07:22:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-19 07:22:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-19 07:22:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-19 07:22:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-19 07:22:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:22:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-19 07:22:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-19 07:22:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-19 07:22:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-19 07:22:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 07:22:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 07:22:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-19 07:22:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-19 07:22:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:22:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:22:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:22:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:22:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 07:22:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 07:22:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:22:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:22:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:22:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:22:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 07:22:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 07:22:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-19 07:22:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-19 07:22:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-19 07:22:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-19 07:22:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-19 07:22:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-19 07:22:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-19 07:22:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-19 07:22:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2022-11-19 07:22:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2022-11-19 07:22:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 07:22:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 07:22:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:22:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:22:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-19 07:22:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-19 07:22:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-19 07:22:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-19 07:22:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-19 07:22:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-19 07:22:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-19 07:22:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-19 07:22:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-19 07:22:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-19 07:22:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:22:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:22:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 07:22:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 07:22:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-19 07:22:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-19 07:22:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:22:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:22:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-19 07:22:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-19 07:22:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:22:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-19 07:22:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-19 07:22:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:22:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:22:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-19 07:22:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-19 07:22:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:22:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:22:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:22:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:22:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-19 07:22:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-19 07:22:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-19 07:22:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-19 07:22:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 07:22:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 07:22:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-19 07:22:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-19 07:22:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-19 07:22:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-19 07:22:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 07:22:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 07:22:08,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-19 07:22:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-19 07:22:08,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-19 07:22:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-19 07:22:08,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-19 07:22:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-19 07:22:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-19 07:22:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-19 07:22:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 07:22:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 07:22:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 07:22:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 07:22:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-19 07:22:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-19 07:22:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-19 07:22:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-19 07:22:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:22:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:22:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-19 07:22:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-19 07:22:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-19 07:22:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-19 07:22:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:22:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:22:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-19 07:22:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-19 07:22:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 07:22:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 07:22:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-19 07:22:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-19 07:22:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-19 07:22:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-19 07:22:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-19 07:22:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-19 07:22:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-19 07:22:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-19 07:22:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:22:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:22:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:22:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:22:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-19 07:22:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:22:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-19 07:22:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-19 07:22:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-19 07:22:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-19 07:22:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-19 07:22:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-19 07:22:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:22:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:22:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-11-19 07:22:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-11-19 07:22:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-19 07:22:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-19 07:22:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-19 07:22:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-19 07:22:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-19 07:22:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-19 07:22:10,215 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:22:10,220 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:22:10,312 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:22:33,150 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:22:34,201 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:22:42,372 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:22:42,372 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-19 07:22:42,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:22:42 BoogieIcfgContainer [2022-11-19 07:22:42,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:22:42,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:22:42,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:22:42,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:22:42,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:21:58" (1/3) ... [2022-11-19 07:22:42,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3bb6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:22:42, skipping insertion in model container [2022-11-19 07:22:42,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:22:06" (2/3) ... [2022-11-19 07:22:42,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3bb6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:22:42, skipping insertion in model container [2022-11-19 07:22:42,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:22:42" (3/3) ... [2022-11-19 07:22:42,401 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-19 07:22:42,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:22:42,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:22:42,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:22:42,548 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;@4f55b1ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:22:42,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:22:42,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 3743 states, 2260 states have (on average 1.3185840707964602) internal successors, (2980), 2324 states have internal predecessors, (2980), 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) [2022-11-19 07:22:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-19 07:22:42,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:42,585 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] [2022-11-19 07:22:42,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:22:42,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1339825268, now seen corresponding path program 1 times [2022-11-19 07:22:42,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:42,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346655496] [2022-11-19 07:22:42,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:42,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-19 07:22:44,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:44,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346655496] [2022-11-19 07:22:44,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346655496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:44,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:22:44,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:22:44,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667651869] [2022-11-19 07:22:44,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:44,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:22:44,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:44,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:22:44,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:22:44,401 INFO L87 Difference]: Start difference. First operand has 3743 states, 2260 states have (on average 1.3185840707964602) internal successors, (2980), 2324 states have internal predecessors, (2980), 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) [2022-11-19 07:22:48,460 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 [] [2022-11-19 07:22:51,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:55,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:57,949 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 [] [2022-11-19 07:23:04,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:04,590 INFO L93 Difference]: Finished difference Result 11069 states and 16175 transitions. [2022-11-19 07:23:04,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:04,593 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 [2022-11-19 07:23:04,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:04,700 INFO L225 Difference]: With dead ends: 11069 [2022-11-19 07:23:04,701 INFO L226 Difference]: Without dead ends: 7352 [2022-11-19 07:23:04,736 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 [2022-11-19 07:23:04,741 INFO L413 NwaCegarLoop]: 6164 mSDtfsCounter, 5305 mSDsluCounter, 4659 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 10823 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:04,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5311 Valid, 10823 Invalid, 1602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1591 Invalid, 4 Unknown, 0 Unchecked, 19.3s Time] [2022-11-19 07:23:04,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-11-19 07:23:05,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 7348. [2022-11-19 07:23:05,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7348 states, 4444 states have (on average 1.316831683168317) internal successors, (5852), 4573 states have internal predecessors, (5852), 2435 states have call successors, (2435), 468 states have call predecessors, (2435), 467 states have return successors, (2438), 2398 states have call predecessors, (2438), 2432 states have call successors, (2438) [2022-11-19 07:23:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7348 states to 7348 states and 10725 transitions. [2022-11-19 07:23:05,541 INFO L78 Accepts]: Start accepts. Automaton has 7348 states and 10725 transitions. Word has length 200 [2022-11-19 07:23:05,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:05,546 INFO L495 AbstractCegarLoop]: Abstraction has 7348 states and 10725 transitions. [2022-11-19 07:23:05,547 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) [2022-11-19 07:23:05,547 INFO L276 IsEmpty]: Start isEmpty. Operand 7348 states and 10725 transitions. [2022-11-19 07:23:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-19 07:23:05,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:05,576 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] [2022-11-19 07:23:05,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:23:05,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:05,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1770054814, now seen corresponding path program 1 times [2022-11-19 07:23:05,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:05,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877467511] [2022-11-19 07:23:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:05,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2022-11-19 07:23:06,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:06,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877467511] [2022-11-19 07:23:06,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877467511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:06,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:06,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:23:06,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921309146] [2022-11-19 07:23:06,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:06,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:06,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:23:06,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:06,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:23:06,778 INFO L87 Difference]: Start difference. First operand 7348 states and 10725 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) [2022-11-19 07:23:13,241 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 [] [2022-11-19 07:23:16,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:18,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:21,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:23,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:24,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:26,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:29,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:31,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:35,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:35,582 INFO L93 Difference]: Finished difference Result 17426 states and 25441 transitions. [2022-11-19 07:23:35,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:35,583 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 [2022-11-19 07:23:35,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:35,673 INFO L225 Difference]: With dead ends: 17426 [2022-11-19 07:23:35,673 INFO L226 Difference]: Without dead ends: 10115 [2022-11-19 07:23:35,727 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 [2022-11-19 07:23:35,730 INFO L413 NwaCegarLoop]: 6214 mSDtfsCounter, 4657 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 19 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4659 SdHoareTripleChecker+Valid, 10841 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:35,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4659 Valid, 10841 Invalid, 1706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1682 Invalid, 5 Unknown, 0 Unchecked, 28.0s Time] [2022-11-19 07:23:35,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10115 states. [2022-11-19 07:23:36,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10115 to 10107. [2022-11-19 07:23:36,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10107 states, 6167 states have (on average 1.3217123398735204) internal successors, (8151), 6350 states have internal predecessors, (8151), 3290 states have call successors, (3290), 650 states have call predecessors, (3290), 648 states have return successors, (3291), 3234 states have call predecessors, (3291), 3287 states have call successors, (3291) [2022-11-19 07:23:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10107 states to 10107 states and 14732 transitions. [2022-11-19 07:23:36,601 INFO L78 Accepts]: Start accepts. Automaton has 10107 states and 14732 transitions. Word has length 237 [2022-11-19 07:23:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:36,603 INFO L495 AbstractCegarLoop]: Abstraction has 10107 states and 14732 transitions. [2022-11-19 07:23:36,604 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) [2022-11-19 07:23:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 10107 states and 14732 transitions. [2022-11-19 07:23:36,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-19 07:23:36,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:36,616 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] [2022-11-19 07:23:36,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:23:36,616 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:36,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash -691669284, now seen corresponding path program 1 times [2022-11-19 07:23:36,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:36,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516878009] [2022-11-19 07:23:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:36,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-19 07:23:38,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:38,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516878009] [2022-11-19 07:23:38,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516878009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:38,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:38,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:23:38,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292506113] [2022-11-19 07:23:38,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:38,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:23:38,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:23:38,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:23:38,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:23:38,473 INFO L87 Difference]: Start difference. First operand 10107 states and 14732 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) [2022-11-19 07:23:44,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:23:47,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:51,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:52,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:54,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:00,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:02,862 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 [] [2022-11-19 07:24:04,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:04,797 INFO L93 Difference]: Finished difference Result 11666 states and 16927 transitions. [2022-11-19 07:24:04,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:24:04,801 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 [2022-11-19 07:24:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:04,881 INFO L225 Difference]: With dead ends: 11666 [2022-11-19 07:24:04,881 INFO L226 Difference]: Without dead ends: 11643 [2022-11-19 07:24:04,890 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 [2022-11-19 07:24:04,891 INFO L413 NwaCegarLoop]: 5138 mSDtfsCounter, 5346 mSDsluCounter, 7011 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5349 SdHoareTripleChecker+Valid, 12149 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:04,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5349 Valid, 12149 Invalid, 1870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1865 Invalid, 5 Unknown, 0 Unchecked, 25.8s Time] [2022-11-19 07:24:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11643 states. [2022-11-19 07:24:05,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11643 to 11640. [2022-11-19 07:24:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11640 states, 7117 states have (on average 1.319516650273992) internal successors, (9391), 7326 states have internal predecessors, (9391), 3743 states have call successors, (3743), 779 states have call predecessors, (3743), 779 states have return successors, (3750), 3686 states have call predecessors, (3750), 3743 states have call successors, (3750) [2022-11-19 07:24:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11640 states to 11640 states and 16884 transitions. [2022-11-19 07:24:05,699 INFO L78 Accepts]: Start accepts. Automaton has 11640 states and 16884 transitions. Word has length 242 [2022-11-19 07:24:05,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:05,701 INFO L495 AbstractCegarLoop]: Abstraction has 11640 states and 16884 transitions. [2022-11-19 07:24:05,701 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) [2022-11-19 07:24:05,702 INFO L276 IsEmpty]: Start isEmpty. Operand 11640 states and 16884 transitions. [2022-11-19 07:24:05,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-11-19 07:24:05,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:05,727 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] [2022-11-19 07:24:05,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:24:05,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2044016951, now seen corresponding path program 1 times [2022-11-19 07:24:05,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:24:05,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450277121] [2022-11-19 07:24:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:05,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:24:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1610 trivial. 0 not checked. [2022-11-19 07:24:06,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:24:06,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450277121] [2022-11-19 07:24:06,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450277121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:06,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:24:06,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:24:06,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317420012] [2022-11-19 07:24:06,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:06,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:24:06,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:24:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:24:06,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:24:06,674 INFO L87 Difference]: Start difference. First operand 11640 states and 16884 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) [2022-11-19 07:24:08,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:10,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:17,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:24:20,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:22,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:25,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:27,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:28,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:32,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:35,701 INFO L93 Difference]: Finished difference Result 23280 states and 33777 transitions. [2022-11-19 07:24:35,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:24:35,701 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 [2022-11-19 07:24:35,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:35,785 INFO L225 Difference]: With dead ends: 23280 [2022-11-19 07:24:35,786 INFO L226 Difference]: Without dead ends: 14841 [2022-11-19 07:24:35,836 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 [2022-11-19 07:24:35,837 INFO L413 NwaCegarLoop]: 8617 mSDtfsCounter, 4633 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 13219 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:35,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 13219 Invalid, 2254 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2234 Invalid, 5 Unknown, 0 Unchecked, 28.3s Time] [2022-11-19 07:24:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14841 states. [2022-11-19 07:24:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14841 to 14839. [2022-11-19 07:24:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14839 states, 9080 states have (on average 1.3205947136563876) internal successors, (11991), 9347 states have internal predecessors, (11991), 4771 states have call successors, (4771), 987 states have call predecessors, (4771), 987 states have return successors, (4781), 4697 states have call predecessors, (4781), 4771 states have call successors, (4781) [2022-11-19 07:24:36,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14839 states to 14839 states and 21543 transitions. [2022-11-19 07:24:36,802 INFO L78 Accepts]: Start accepts. Automaton has 14839 states and 21543 transitions. Word has length 284 [2022-11-19 07:24:36,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:36,807 INFO L495 AbstractCegarLoop]: Abstraction has 14839 states and 21543 transitions. [2022-11-19 07:24:36,807 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) [2022-11-19 07:24:36,808 INFO L276 IsEmpty]: Start isEmpty. Operand 14839 states and 21543 transitions. [2022-11-19 07:24:36,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-11-19 07:24:36,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:36,861 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] [2022-11-19 07:24:36,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:24:36,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:36,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:36,862 INFO L85 PathProgramCache]: Analyzing trace with hash 783645088, now seen corresponding path program 1 times [2022-11-19 07:24:36,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:24:36,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441293502] [2022-11-19 07:24:36,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:36,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:24:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1821 trivial. 0 not checked. [2022-11-19 07:24:38,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:24:38,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441293502] [2022-11-19 07:24:38,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441293502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:38,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:24:38,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:24:38,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131885171] [2022-11-19 07:24:38,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:38,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:24:38,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:24:38,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:24:38,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:24:38,570 INFO L87 Difference]: Start difference. First operand 14839 states and 21543 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) [2022-11-19 07:24:41,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:48,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:24:51,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:55,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:57,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:04,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:13,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:13,175 INFO L93 Difference]: Finished difference Result 31748 states and 46677 transitions. [2022-11-19 07:25:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:25:13,176 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 [2022-11-19 07:25:13,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:13,463 INFO L225 Difference]: With dead ends: 31748 [2022-11-19 07:25:13,464 INFO L226 Difference]: Without dead ends: 31746 [2022-11-19 07:25:13,480 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 [2022-11-19 07:25:13,482 INFO L413 NwaCegarLoop]: 7963 mSDtfsCounter, 6219 mSDsluCounter, 12363 mSDsCounter, 0 mSdLazyCounter, 3183 mSolverCounterSat, 302 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6520 SdHoareTripleChecker+Valid, 20326 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 3183 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:13,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6520 Valid, 20326 Invalid, 3490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [302 Valid, 3183 Invalid, 5 Unknown, 0 Unchecked, 33.4s Time] [2022-11-19 07:25:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31746 states. [2022-11-19 07:25:15,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31746 to 28054. [2022-11-19 07:25:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28054 states, 17160 states have (on average 1.3215034965034964) internal successors, (22677), 17668 states have internal predecessors, (22677), 9051 states have call successors, (9051), 1842 states have call predecessors, (9051), 1842 states have return successors, (9077), 8905 states have call predecessors, (9077), 9051 states have call successors, (9077) [2022-11-19 07:25:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28054 states to 28054 states and 40805 transitions. [2022-11-19 07:25:15,511 INFO L78 Accepts]: Start accepts. Automaton has 28054 states and 40805 transitions. Word has length 346 [2022-11-19 07:25:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:15,512 INFO L495 AbstractCegarLoop]: Abstraction has 28054 states and 40805 transitions. [2022-11-19 07:25:15,512 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) [2022-11-19 07:25:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 28054 states and 40805 transitions. [2022-11-19 07:25:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-11-19 07:25:15,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:15,644 INFO L195 NwaCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 9, 9, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:25:15,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:25:15,645 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:15,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:15,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1955176168, now seen corresponding path program 1 times [2022-11-19 07:25:15,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:15,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936242464] [2022-11-19 07:25:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:15,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1873 trivial. 0 not checked. [2022-11-19 07:25:16,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:16,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936242464] [2022-11-19 07:25:16,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936242464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:16,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:16,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:25:16,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020740271] [2022-11-19 07:25:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:16,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:16,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:16,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:16,580 INFO L87 Difference]: Start difference. First operand 28054 states and 40805 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-19 07:25:19,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:25:23,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:25,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:29,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:31,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:37,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:37,866 INFO L93 Difference]: Finished difference Result 58548 states and 84907 transitions. [2022-11-19 07:25:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:37,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 371 [2022-11-19 07:25:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:38,052 INFO L225 Difference]: With dead ends: 58548 [2022-11-19 07:25:38,053 INFO L226 Difference]: Without dead ends: 30531 [2022-11-19 07:25:38,175 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 [2022-11-19 07:25:38,177 INFO L413 NwaCegarLoop]: 5709 mSDtfsCounter, 3143 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 10304 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:38,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 10304 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1646 Invalid, 3 Unknown, 0 Unchecked, 19.8s Time] [2022-11-19 07:25:38,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30531 states. [2022-11-19 07:25:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30531 to 30524. [2022-11-19 07:25:40,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30524 states, 18721 states have (on average 1.321296939266065) internal successors, (24736), 19268 states have internal predecessors, (24736), 9674 states have call successors, (9674), 2130 states have call predecessors, (9674), 2128 states have return successors, (9706), 9519 states have call predecessors, (9706), 9674 states have call successors, (9706) [2022-11-19 07:25:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30524 states to 30524 states and 44116 transitions. [2022-11-19 07:25:40,357 INFO L78 Accepts]: Start accepts. Automaton has 30524 states and 44116 transitions. Word has length 371 [2022-11-19 07:25:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:40,358 INFO L495 AbstractCegarLoop]: Abstraction has 30524 states and 44116 transitions. [2022-11-19 07:25:40,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-19 07:25:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 30524 states and 44116 transitions. [2022-11-19 07:25:40,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-11-19 07:25:40,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:40,445 INFO L195 NwaCegarLoop]: trace histogram [33, 20, 20, 20, 20, 20, 20, 15, 15, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:25:40,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:25:40,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:40,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:40,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2114151752, now seen corresponding path program 1 times [2022-11-19 07:25:40,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:40,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815174641] [2022-11-19 07:25:40,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:40,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2659 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2022-11-19 07:25:42,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:42,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815174641] [2022-11-19 07:25:42,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815174641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:42,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:42,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:25:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399304987] [2022-11-19 07:25:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:42,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:25:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:25:42,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:25:42,555 INFO L87 Difference]: Start difference. First operand 30524 states and 44116 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (71), 1 states have call predecessors, (71), 3 states have return successors, (71), 3 states have call predecessors, (71), 2 states have call successors, (71) [2022-11-19 07:25:46,749 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 [] [2022-11-19 07:25:49,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:52,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:54,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:57,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:07,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:14,534 INFO L93 Difference]: Finished difference Result 61131 states and 88971 transitions. [2022-11-19 07:26:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:26:14,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (71), 1 states have call predecessors, (71), 3 states have return successors, (71), 3 states have call predecessors, (71), 2 states have call successors, (71) Word has length 565 [2022-11-19 07:26:14,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:14,722 INFO L225 Difference]: With dead ends: 61131 [2022-11-19 07:26:14,723 INFO L226 Difference]: Without dead ends: 30644 [2022-11-19 07:26:14,870 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 [2022-11-19 07:26:14,871 INFO L413 NwaCegarLoop]: 4654 mSDtfsCounter, 5 mSDsluCounter, 13931 mSDsCounter, 0 mSdLazyCounter, 3068 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18585 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3068 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:14,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18585 Invalid, 3075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3068 Invalid, 4 Unknown, 0 Unchecked, 30.6s Time] [2022-11-19 07:26:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30644 states. [2022-11-19 07:26:16,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30644 to 30584. [2022-11-19 07:26:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30584 states, 18766 states have (on average 1.3205264840669295) internal successors, (24781), 19313 states have internal predecessors, (24781), 9674 states have call successors, (9674), 2130 states have call predecessors, (9674), 2143 states have return successors, (9893), 9534 states have call predecessors, (9893), 9674 states have call successors, (9893) [2022-11-19 07:26:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30584 states to 30584 states and 44348 transitions. [2022-11-19 07:26:17,116 INFO L78 Accepts]: Start accepts. Automaton has 30584 states and 44348 transitions. Word has length 565 [2022-11-19 07:26:17,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:17,117 INFO L495 AbstractCegarLoop]: Abstraction has 30584 states and 44348 transitions. [2022-11-19 07:26:17,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (71), 1 states have call predecessors, (71), 3 states have return successors, (71), 3 states have call predecessors, (71), 2 states have call successors, (71) [2022-11-19 07:26:17,117 INFO L276 IsEmpty]: Start isEmpty. Operand 30584 states and 44348 transitions. [2022-11-19 07:26:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-11-19 07:26:17,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:17,188 INFO L195 NwaCegarLoop]: trace histogram [33, 20, 20, 20, 20, 20, 20, 15, 15, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:17,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:26:17,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:26:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1209666742, now seen corresponding path program 1 times [2022-11-19 07:26:17,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:17,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282758377] [2022-11-19 07:26:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:17,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2659 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 2582 trivial. 0 not checked. [2022-11-19 07:26:18,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:18,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282758377] [2022-11-19 07:26:18,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282758377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:18,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:18,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:26:18,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647475942] [2022-11-19 07:26:18,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:18,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:26:18,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:18,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:26:18,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:18,700 INFO L87 Difference]: Start difference. First operand 30584 states and 44348 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-19 07:26:21,930 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 [] [2022-11-19 07:26:24,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:26,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:28,881 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 [] [2022-11-19 07:26:40,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:40,024 INFO L93 Difference]: Finished difference Result 68223 states and 98871 transitions. [2022-11-19 07:26:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:26:40,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 570 [2022-11-19 07:26:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:40,271 INFO L225 Difference]: With dead ends: 68223 [2022-11-19 07:26:40,272 INFO L226 Difference]: Without dead ends: 38440 [2022-11-19 07:26:40,667 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 [2022-11-19 07:26:40,668 INFO L413 NwaCegarLoop]: 7338 mSDtfsCounter, 3173 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 11943 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:40,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3179 Valid, 11943 Invalid, 2021 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2013 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2022-11-19 07:26:40,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38440 states. [2022-11-19 07:26:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38440 to 38432. [2022-11-19 07:26:42,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38432 states, 23678 states have (on average 1.3244361854886393) internal successors, (31360), 24357 states have internal predecessors, (31360), 12000 states have call successors, (12000), 2736 states have call predecessors, (12000), 2753 states have return successors, (12283), 11828 states have call predecessors, (12283), 12000 states have call successors, (12283) [2022-11-19 07:26:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38432 states to 38432 states and 55643 transitions. [2022-11-19 07:26:42,887 INFO L78 Accepts]: Start accepts. Automaton has 38432 states and 55643 transitions. Word has length 570 [2022-11-19 07:26:42,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:42,888 INFO L495 AbstractCegarLoop]: Abstraction has 38432 states and 55643 transitions. [2022-11-19 07:26:42,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-19 07:26:42,889 INFO L276 IsEmpty]: Start isEmpty. Operand 38432 states and 55643 transitions. [2022-11-19 07:26:42,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-11-19 07:26:42,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:42,982 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:42,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:26:42,983 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:26:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash -743348664, now seen corresponding path program 1 times [2022-11-19 07:26:42,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:42,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782277053] [2022-11-19 07:26:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:42,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:26:44,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:44,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782277053] [2022-11-19 07:26:44,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782277053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:44,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:44,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:26:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005851138] [2022-11-19 07:26:44,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:44,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:26:44,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:44,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:26:44,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:26:44,700 INFO L87 Difference]: Start difference. First operand 38432 states and 55643 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:26:48,629 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 [] [2022-11-19 07:26:51,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:54,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:55,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:57,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:26:59,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:01,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:04,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:13,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:21,652 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 [] [2022-11-19 07:27:29,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:29,395 INFO L93 Difference]: Finished difference Result 83727 states and 121077 transitions. [2022-11-19 07:27:29,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:27:29,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 592 [2022-11-19 07:27:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:29,758 INFO L225 Difference]: With dead ends: 83727 [2022-11-19 07:27:29,760 INFO L226 Difference]: Without dead ends: 46096 [2022-11-19 07:27:29,902 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 [2022-11-19 07:27:29,905 INFO L413 NwaCegarLoop]: 7335 mSDtfsCounter, 3123 mSDsluCounter, 19275 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 26610 SdHoareTripleChecker+Invalid, 4437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:29,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3129 Valid, 26610 Invalid, 4437 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4430 Invalid, 6 Unknown, 0 Unchecked, 42.3s Time] [2022-11-19 07:27:29,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46096 states. [2022-11-19 07:27:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46096 to 46076. [2022-11-19 07:27:31,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46076 states, 28392 states have (on average 1.3231544096928711) internal successors, (37567), 29203 states have internal predecessors, (37567), 14320 states have call successors, (14320), 3336 states have call predecessors, (14320), 3363 states have return successors, (14673), 14122 states have call predecessors, (14673), 14320 states have call successors, (14673) [2022-11-19 07:27:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46076 states to 46076 states and 66560 transitions. [2022-11-19 07:27:32,024 INFO L78 Accepts]: Start accepts. Automaton has 46076 states and 66560 transitions. Word has length 592 [2022-11-19 07:27:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:32,026 INFO L495 AbstractCegarLoop]: Abstraction has 46076 states and 66560 transitions. [2022-11-19 07:27:32,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:27:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 46076 states and 66560 transitions. [2022-11-19 07:27:32,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2022-11-19 07:27:32,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:32,112 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:32,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:27:32,113 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:32,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:32,113 INFO L85 PathProgramCache]: Analyzing trace with hash 66179964, now seen corresponding path program 1 times [2022-11-19 07:27:32,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:32,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232322320] [2022-11-19 07:27:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:32,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:27:33,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:33,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232322320] [2022-11-19 07:27:33,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232322320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:33,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:33,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:27:33,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222265111] [2022-11-19 07:27:33,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:33,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:27:33,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:33,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:27:33,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:27:33,904 INFO L87 Difference]: Start difference. First operand 46076 states and 66560 transitions. Second operand has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:27:37,773 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 [] [2022-11-19 07:27:40,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:43,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:45,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:47,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:48,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:56,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:00,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:02,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:11,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:12,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:16,321 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 [] [2022-11-19 07:28:21,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:21,811 INFO L93 Difference]: Finished difference Result 99042 states and 142949 transitions. [2022-11-19 07:28:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:28:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 593 [2022-11-19 07:28:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:22,286 INFO L225 Difference]: With dead ends: 99042 [2022-11-19 07:28:22,287 INFO L226 Difference]: Without dead ends: 53767 [2022-11-19 07:28:22,463 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 [2022-11-19 07:28:22,464 INFO L413 NwaCegarLoop]: 7349 mSDtfsCounter, 3137 mSDsluCounter, 19301 mSDsCounter, 0 mSdLazyCounter, 4451 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3143 SdHoareTripleChecker+Valid, 26650 SdHoareTripleChecker+Invalid, 4457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4451 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:22,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3143 Valid, 26650 Invalid, 4457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4451 Invalid, 3 Unknown, 0 Unchecked, 45.4s Time] [2022-11-19 07:28:22,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53767 states. [2022-11-19 07:28:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53767 to 53747. [2022-11-19 07:28:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53747 states, 33127 states have (on average 1.322093760376732) internal successors, (43797), 34070 states have internal predecessors, (43797), 16642 states have call successors, (16642), 3940 states have call predecessors, (16642), 3977 states have return successors, (17064), 16418 states have call predecessors, (17064), 16642 states have call successors, (17064) [2022-11-19 07:28:25,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53747 states to 53747 states and 77503 transitions. [2022-11-19 07:28:25,019 INFO L78 Accepts]: Start accepts. Automaton has 53747 states and 77503 transitions. Word has length 593 [2022-11-19 07:28:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:25,021 INFO L495 AbstractCegarLoop]: Abstraction has 53747 states and 77503 transitions. [2022-11-19 07:28:25,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:28:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 53747 states and 77503 transitions. [2022-11-19 07:28:25,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2022-11-19 07:28:25,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:25,133 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:25,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:28:25,134 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:25,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:25,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1632213579, now seen corresponding path program 1 times [2022-11-19 07:28:25,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:25,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288029322] [2022-11-19 07:28:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:25,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:28:27,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:27,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288029322] [2022-11-19 07:28:27,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288029322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:27,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:27,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:28:27,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271105953] [2022-11-19 07:28:27,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:27,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:28:27,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:28:27,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:27,181 INFO L87 Difference]: Start difference. First operand 53747 states and 77503 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:28:30,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:28:32,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:28:34,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:28:36,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:28:39,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:41,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:43,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:48,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:54,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:55,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:01,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:29:12,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:12,772 INFO L93 Difference]: Finished difference Result 114395 states and 164861 transitions. [2022-11-19 07:29:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:29:12,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 594 [2022-11-19 07:29:12,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:13,261 INFO L225 Difference]: With dead ends: 114395 [2022-11-19 07:29:13,261 INFO L226 Difference]: Without dead ends: 61449 [2022-11-19 07:29:13,475 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 [2022-11-19 07:29:13,476 INFO L413 NwaCegarLoop]: 7341 mSDtfsCounter, 3138 mSDsluCounter, 19274 mSDsCounter, 0 mSdLazyCounter, 4441 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3144 SdHoareTripleChecker+Valid, 26615 SdHoareTripleChecker+Invalid, 4453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4441 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:13,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3144 Valid, 26615 Invalid, 4453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 4441 Invalid, 6 Unknown, 0 Unchecked, 42.9s Time] [2022-11-19 07:29:13,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61449 states. [2022-11-19 07:29:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61449 to 61429. [2022-11-19 07:29:15,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61429 states, 37875 states have (on average 1.321135313531353) internal successors, (50038), 38950 states have internal predecessors, (50038), 18962 states have call successors, (18962), 4544 states have call predecessors, (18962), 4591 states have return successors, (19454), 18712 states have call predecessors, (19454), 18962 states have call successors, (19454) [2022-11-19 07:29:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61429 states to 61429 states and 88454 transitions. [2022-11-19 07:29:16,146 INFO L78 Accepts]: Start accepts. Automaton has 61429 states and 88454 transitions. Word has length 594 [2022-11-19 07:29:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:16,150 INFO L495 AbstractCegarLoop]: Abstraction has 61429 states and 88454 transitions. [2022-11-19 07:29:16,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:29:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 61429 states and 88454 transitions. [2022-11-19 07:29:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-19 07:29:16,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:16,268 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:16,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:29:16,270 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:29:16,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:16,271 INFO L85 PathProgramCache]: Analyzing trace with hash -318697992, now seen corresponding path program 1 times [2022-11-19 07:29:16,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:16,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140605965] [2022-11-19 07:29:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:16,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:29:18,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:18,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140605965] [2022-11-19 07:29:18,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140605965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:18,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:18,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:29:18,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107162682] [2022-11-19 07:29:18,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:18,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:29:18,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:18,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:29:18,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:29:18,853 INFO L87 Difference]: Start difference. First operand 61429 states and 88454 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:29:23,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:29:25,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:28,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:30,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:41,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:58,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:58,548 INFO L93 Difference]: Finished difference Result 129791 states and 186799 transitions. [2022-11-19 07:29:58,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:29:58,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 595 [2022-11-19 07:29:58,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:59,130 INFO L225 Difference]: With dead ends: 129791 [2022-11-19 07:29:59,130 INFO L226 Difference]: Without dead ends: 69163 [2022-11-19 07:29:59,321 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 [2022-11-19 07:29:59,322 INFO L413 NwaCegarLoop]: 7340 mSDtfsCounter, 3189 mSDsluCounter, 19230 mSDsCounter, 0 mSdLazyCounter, 4436 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3195 SdHoareTripleChecker+Valid, 26570 SdHoareTripleChecker+Invalid, 4447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4436 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:59,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3195 Valid, 26570 Invalid, 4447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 4436 Invalid, 4 Unknown, 0 Unchecked, 36.2s Time] [2022-11-19 07:29:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69163 states. [2022-11-19 07:30:01,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69163 to 69143. [2022-11-19 07:30:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69143 states, 42641 states have (on average 1.3202551534907718) internal successors, (56297), 43848 states have internal predecessors, (56297), 21288 states have call successors, (21288), 5156 states have call predecessors, (21288), 5213 states have return successors, (21850), 21012 states have call predecessors, (21850), 21288 states have call successors, (21850) [2022-11-19 07:30:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69143 states to 69143 states and 99435 transitions. [2022-11-19 07:30:02,578 INFO L78 Accepts]: Start accepts. Automaton has 69143 states and 99435 transitions. Word has length 595 [2022-11-19 07:30:02,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:02,579 INFO L495 AbstractCegarLoop]: Abstraction has 69143 states and 99435 transitions. [2022-11-19 07:30:02,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:30:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 69143 states and 99435 transitions. [2022-11-19 07:30:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-19 07:30:02,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:02,668 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:30:02,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:30:02,668 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:02,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:02,669 INFO L85 PathProgramCache]: Analyzing trace with hash -6231682, now seen corresponding path program 1 times [2022-11-19 07:30:02,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:02,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453559155] [2022-11-19 07:30:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:02,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:30:04,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:04,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453559155] [2022-11-19 07:30:04,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453559155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:04,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:04,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:30:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726343372] [2022-11-19 07:30:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:04,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:30:04,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:04,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:30:04,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:30:04,557 INFO L87 Difference]: Start difference. First operand 69143 states and 99435 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:30:08,689 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 [] [2022-11-19 07:30:11,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:14,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:16,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:18,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:20,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:30,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:33,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:42,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:45,473 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 [] [2022-11-19 07:30:51,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:51,064 INFO L93 Difference]: Finished difference Result 145191 states and 208745 transitions. [2022-11-19 07:30:51,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:30:51,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 596 [2022-11-19 07:30:51,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:51,575 INFO L225 Difference]: With dead ends: 145191 [2022-11-19 07:30:51,575 INFO L226 Difference]: Without dead ends: 76849 [2022-11-19 07:30:51,788 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 [2022-11-19 07:30:51,789 INFO L413 NwaCegarLoop]: 7341 mSDtfsCounter, 3122 mSDsluCounter, 19287 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 26628 SdHoareTripleChecker+Invalid, 4463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:51,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3128 Valid, 26628 Invalid, 4463 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 4450 Invalid, 6 Unknown, 0 Unchecked, 43.0s Time] [2022-11-19 07:30:51,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76849 states. [2022-11-19 07:30:54,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76849 to 76829. [2022-11-19 07:30:54,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76829 states, 47397 states have (on average 1.3196193851931557) internal successors, (62546), 48736 states have internal predecessors, (62546), 23608 states have call successors, (23608), 5756 states have call predecessors, (23608), 5823 states have return successors, (24240), 23306 states have call predecessors, (24240), 23608 states have call successors, (24240) [2022-11-19 07:30:55,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76829 states to 76829 states and 110394 transitions. [2022-11-19 07:30:55,293 INFO L78 Accepts]: Start accepts. Automaton has 76829 states and 110394 transitions. Word has length 596 [2022-11-19 07:30:55,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:55,294 INFO L495 AbstractCegarLoop]: Abstraction has 76829 states and 110394 transitions. [2022-11-19 07:30:55,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:30:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 76829 states and 110394 transitions. [2022-11-19 07:30:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-11-19 07:30:55,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:55,673 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:30:55,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:30:55,673 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:55,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:55,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1094964812, now seen corresponding path program 1 times [2022-11-19 07:30:55,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:55,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525720653] [2022-11-19 07:30:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:55,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:30:57,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:57,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525720653] [2022-11-19 07:30:57,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525720653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:57,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:57,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:30:57,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285381630] [2022-11-19 07:30:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:57,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:30:57,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:30:57,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:30:57,147 INFO L87 Difference]: Start difference. First operand 76829 states and 110394 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:31:01,015 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 [] [2022-11-19 07:31:04,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:06,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:08,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:11,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:12,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:14,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:16,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:28,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:36,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:38,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:43,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:45,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:47,848 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 [] [2022-11-19 07:31:55,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:55,416 INFO L93 Difference]: Finished difference Result 160998 states and 231289 transitions. [2022-11-19 07:31:55,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:31:55,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 597 [2022-11-19 07:31:55,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:55,849 INFO L225 Difference]: With dead ends: 160998 [2022-11-19 07:31:55,849 INFO L226 Difference]: Without dead ends: 84970 [2022-11-19 07:31:56,289 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 [2022-11-19 07:31:56,290 INFO L413 NwaCegarLoop]: 7350 mSDtfsCounter, 3143 mSDsluCounter, 19303 mSDsCounter, 0 mSdLazyCounter, 4478 mSolverCounterSat, 9 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 26653 SdHoareTripleChecker+Invalid, 4496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4478 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:56,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 26653 Invalid, 4496 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9 Valid, 4478 Invalid, 9 Unknown, 0 Unchecked, 54.4s Time] [2022-11-19 07:31:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84970 states. [2022-11-19 07:31:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84970 to 84951. [2022-11-19 07:31:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84951 states, 52426 states have (on average 1.3193835119978636) internal successors, (69170), 53908 states have internal predecessors, (69170), 26050 states have call successors, (26050), 6396 states have call predecessors, (26050), 6474 states have return successors, (26754), 25721 states have call predecessors, (26754), 26050 states have call successors, (26754) [2022-11-19 07:32:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84951 states to 84951 states and 121974 transitions. [2022-11-19 07:32:00,672 INFO L78 Accepts]: Start accepts. Automaton has 84951 states and 121974 transitions. Word has length 597 [2022-11-19 07:32:00,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:00,673 INFO L495 AbstractCegarLoop]: Abstraction has 84951 states and 121974 transitions. [2022-11-19 07:32:00,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:32:00,673 INFO L276 IsEmpty]: Start isEmpty. Operand 84951 states and 121974 transitions. [2022-11-19 07:32:00,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-11-19 07:32:00,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:00,788 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:00,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:32:00,788 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:00,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:00,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1694739911, now seen corresponding path program 1 times [2022-11-19 07:32:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:00,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064119820] [2022-11-19 07:32:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:32:02,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:02,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064119820] [2022-11-19 07:32:02,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064119820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:02,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:02,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:32:02,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263705942] [2022-11-19 07:32:02,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:02,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:32:02,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:02,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:32:02,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:32:02,464 INFO L87 Difference]: Start difference. First operand 84951 states and 121974 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:32:07,225 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 [] [2022-11-19 07:32:09,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:32:11,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:32:13,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:15,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:17,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:19,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:21,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:23,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:33,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:35,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:37,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:43,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:32:47,295 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 [] [2022-11-19 07:32:59,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:59,894 INFO L93 Difference]: Finished difference Result 176827 states and 253851 transitions. [2022-11-19 07:32:59,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:32:59,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 598 [2022-11-19 07:32:59,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:00,394 INFO L225 Difference]: With dead ends: 176827 [2022-11-19 07:33:00,394 INFO L226 Difference]: Without dead ends: 92677 [2022-11-19 07:33:00,877 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 [2022-11-19 07:33:00,878 INFO L413 NwaCegarLoop]: 7341 mSDtfsCounter, 3135 mSDsluCounter, 19276 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 10 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3141 SdHoareTripleChecker+Valid, 26617 SdHoareTripleChecker+Invalid, 4474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:00,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3141 Valid, 26617 Invalid, 4474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 4453 Invalid, 11 Unknown, 0 Unchecked, 53.2s Time] [2022-11-19 07:33:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92677 states. [2022-11-19 07:33:04,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92677 to 92657. [2022-11-19 07:33:05,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92657 states, 57198 states have (on average 1.318839819574111) internal successors, (75435), 58812 states have internal predecessors, (75435), 28370 states have call successors, (28370), 7000 states have call predecessors, (28370), 7088 states have return successors, (29144), 28015 states have call predecessors, (29144), 28370 states have call successors, (29144) [2022-11-19 07:33:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92657 states to 92657 states and 132949 transitions. [2022-11-19 07:33:05,778 INFO L78 Accepts]: Start accepts. Automaton has 92657 states and 132949 transitions. Word has length 598 [2022-11-19 07:33:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:05,778 INFO L495 AbstractCegarLoop]: Abstraction has 92657 states and 132949 transitions. [2022-11-19 07:33:05,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:33:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 92657 states and 132949 transitions. [2022-11-19 07:33:05,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-19 07:33:05,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:05,912 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:33:05,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:33:05,912 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:33:05,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:05,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2011577165, now seen corresponding path program 1 times [2022-11-19 07:33:05,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:05,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697843012] [2022-11-19 07:33:05,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:05,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:33:07,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:07,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697843012] [2022-11-19 07:33:07,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697843012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:07,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:07,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:33:07,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158387463] [2022-11-19 07:33:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:07,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:33:07,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:07,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:33:07,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:33:07,939 INFO L87 Difference]: Start difference. First operand 92657 states and 132949 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:33:10,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:33:12,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:33:14,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:33:16,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:33:19,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:22,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:23,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:25,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:27,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:29,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:34,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:38,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:40,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:42,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:49,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:33:56,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:33:58,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:00,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:07,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:07,784 INFO L93 Difference]: Finished difference Result 192349 states and 275933 transitions. [2022-11-19 07:34:07,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:34:07,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) Word has length 599 [2022-11-19 07:34:07,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:08,342 INFO L225 Difference]: With dead ends: 192349 [2022-11-19 07:34:08,342 INFO L226 Difference]: Without dead ends: 100493 [2022-11-19 07:34:08,668 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 [2022-11-19 07:34:08,669 INFO L413 NwaCegarLoop]: 7341 mSDtfsCounter, 3942 mSDsluCounter, 18536 mSDsCounter, 0 mSdLazyCounter, 4392 mSolverCounterSat, 11 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3948 SdHoareTripleChecker+Valid, 25877 SdHoareTripleChecker+Invalid, 4412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4392 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:08,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3948 Valid, 25877 Invalid, 4412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4392 Invalid, 9 Unknown, 0 Unchecked, 54.9s Time] [2022-11-19 07:34:08,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100493 states. [2022-11-19 07:34:13,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100493 to 100473. [2022-11-19 07:34:13,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100473 states, 62028 states have (on average 1.3181466434513445) internal successors, (81762), 63778 states have internal predecessors, (81762), 30722 states have call successors, (30722), 7624 states have call predecessors, (30722), 7722 states have return successors, (31566), 30341 states have call predecessors, (31566), 30722 states have call successors, (31566) [2022-11-19 07:34:14,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100473 states to 100473 states and 144050 transitions. [2022-11-19 07:34:14,222 INFO L78 Accepts]: Start accepts. Automaton has 100473 states and 144050 transitions. Word has length 599 [2022-11-19 07:34:14,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:14,224 INFO L495 AbstractCegarLoop]: Abstraction has 100473 states and 144050 transitions. [2022-11-19 07:34:14,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:34:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 100473 states and 144050 transitions. [2022-11-19 07:34:14,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2022-11-19 07:34:14,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:14,357 INFO L195 NwaCegarLoop]: trace histogram [35, 20, 20, 20, 20, 20, 20, 15, 15, 6, 6, 6, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:34:14,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 07:34:14,357 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:14,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:14,358 INFO L85 PathProgramCache]: Analyzing trace with hash 843017780, now seen corresponding path program 1 times [2022-11-19 07:34:14,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:14,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924640422] [2022-11-19 07:34:14,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:14,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:15,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 2730 trivial. 0 not checked. [2022-11-19 07:34:15,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:34:15,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924640422] [2022-11-19 07:34:15,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924640422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:15,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:34:15,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:34:15,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263270273] [2022-11-19 07:34:15,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:15,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:34:15,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:34:15,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:34:15,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:34:15,947 INFO L87 Difference]: Start difference. First operand 100473 states and 144050 transitions. Second operand has 5 states, 5 states have (on average 44.8) internal successors, (224), 4 states have internal predecessors, (224), 3 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 4 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 07:34:19,924 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 [] [2022-11-19 07:34:22,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:25,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:28,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:30,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:32,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:33,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:40,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:41,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:34:44,850 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 []