./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:08:46,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:08:46,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:08:46,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:08:46,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:08:46,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:08:46,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:08:46,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:08:46,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:08:46,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:08:46,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:08:46,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:08:46,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:08:46,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:08:46,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:08:46,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:08:46,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:08:46,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:08:46,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:08:46,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:08:46,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:08:46,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:08:46,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:08:46,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:08:46,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:08:46,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:08:46,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:08:46,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:08:46,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:08:46,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:08:46,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:08:46,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:08:46,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:08:46,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:08:46,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:08:46,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:08:46,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:08:46,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:08:46,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:08:46,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:08:46,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:08:46,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:08:46,603 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:08:46,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:08:46,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:08:46,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:08:46,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:08:46,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:08:46,609 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:08:46,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:08:46,609 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:08:46,609 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:08:46,609 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:08:46,609 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:08:46,610 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:08:46,610 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:08:46,610 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:08:46,610 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:08:46,610 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:08:46,611 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:08:46,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:08:46,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:08:46,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:08:46,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:08:46,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:08:46,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:08:46,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:08:46,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:08:46,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:08:46,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:08:46,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:08:46,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:46,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:08:46,614 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:08:46,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:08:46,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:08:46,614 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:08:46,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:08:46,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:08:46,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:08:46,619 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_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e [2022-11-03 04:08:46,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:08:46,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:08:46,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:08:46,998 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:08:46,999 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:08:47,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-03 04:08:47,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/data/66eb84adb/8018db8bf0d64f52b6c19ec62c5f60fd/FLAG88c2f650b [2022-11-03 04:08:48,335 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:08:48,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-03 04:08:48,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/data/66eb84adb/8018db8bf0d64f52b6c19ec62c5f60fd/FLAG88c2f650b [2022-11-03 04:08:48,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/data/66eb84adb/8018db8bf0d64f52b6c19ec62c5f60fd [2022-11-03 04:08:48,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:08:48,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:08:48,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:48,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:08:48,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:08:48,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:48,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756c84f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48, skipping insertion in model container [2022-11-03 04:08:48,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:48,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:08:48,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:09:00,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2022-11-03 04:09:01,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:09:01,139 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:09:01,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2022-11-03 04:09:01,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:09:02,505 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:09:02,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02 WrapperNode [2022-11-03 04:09:02,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:09:02,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:09:02,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:09:02,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:09:02,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:02,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:03,716 INFO L138 Inliner]: procedures = 977, calls = 8058, calls flagged for inlining = 435, calls inlined = 368, statements flattened = 16935 [2022-11-03 04:09:03,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:09:03,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:09:03,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:09:03,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:09:03,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:03,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:03,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:03,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:04,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:04,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:04,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:04,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:04,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:09:04,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:09:04,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:09:04,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:09:04,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (1/1) ... [2022-11-03 04:09:04,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:09:04,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:04,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:09:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 04:09:05,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 04:09:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-03 04:09:05,003 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-03 04:09:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2022-11-03 04:09:05,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2022-11-03 04:09:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_txskb [2022-11-03 04:09:05,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_txskb [2022-11-03 04:09:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure s6_to_int [2022-11-03 04:09:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_to_int [2022-11-03 04:09:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_urb_has_error [2022-11-03 04:09:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_urb_has_error [2022-11-03 04:09:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pad [2022-11-03 04:09:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pad [2022-11-03 04:09:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2022-11-03 04:09:05,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2022-11-03 04:09:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ampdu_factor [2022-11-03 04:09:05,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ampdu_factor [2022-11-03 04:09:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2022-11-03 04:09:05,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2022-11-03 04:09:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 04:09:05,005 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 04:09:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_clear [2022-11-03 04:09:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_clear [2022-11-03 04:09:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2022-11-03 04:09:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2022-11-03 04:09:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rmw [2022-11-03 04:09:05,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rmw [2022-11-03 04:09:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-11-03 04:09:05,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-11-03 04:09:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rmw [2022-11-03 04:09:05,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rmw [2022-11-03 04:09:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:04,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9a1589d-c585-4bd9-a03d-a99df6d9bda1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:09:05,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2022-11-03 04:09:05,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2022-11-03 04:09:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 04:09:05,017 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 04:09:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 04:09:05,017 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 04:09:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_bw_filter [2022-11-03 04:09:05,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_bw_filter [2022-11-03 04:09:05,018 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmc [2022-11-03 04:09:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmc [2022-11-03 04:09:05,018 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 04:09:05,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 04:09:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmw [2022-11-03 04:09:05,020 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmw [2022-11-03 04:09:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___1 [2022-11-03 04:09:05,020 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___1 [2022-11-03 04:09:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-11-03 04:09:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-11-03 04:09:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___2 [2022-11-03 04:09:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___2 [2022-11-03 04:09:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_add [2022-11-03 04:09:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_add [2022-11-03 04:09:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 04:09:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 04:09:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_single_wr [2022-11-03 04:09:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_single_wr [2022-11-03 04:09:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_raw_init [2022-11-03 04:09:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_raw_init [2022-11-03 04:09:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_rts_threshold [2022-11-03 04:09:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_rts_threshold [2022-11-03 04:09:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:09:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-03 04:09:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-03 04:09:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2022-11-03 04:09:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2022-11-03 04:09:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-03 04:09:05,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-03 04:09:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_config [2022-11-03 04:09:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_config [2022-11-03 04:09:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rr [2022-11-03 04:09:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rr [2022-11-03 04:09:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rr [2022-11-03 04:09:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rr [2022-11-03 04:09:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure s6_validate [2022-11-03 04:09:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_validate [2022-11-03 04:09:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 04:09:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 04:09:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_free_buf [2022-11-03 04:09:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_free_buf [2022-11-03 04:09:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:09:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:09:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure field_valid [2022-11-03 04:09:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure field_valid [2022-11-03 04:09:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 04:09:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 04:09:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:09:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 04:09:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure q2hwq [2022-11-03 04:09:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure q2hwq [2022-11-03 04:09:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-03 04:09:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-03 04:09:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2022-11-03 04:09:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2022-11-03 04:09:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 04:09:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 04:09:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-03 04:09:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-03 04:09:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 04:09:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 04:09:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_u32 [2022-11-03 04:09:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_u32 [2022-11-03 04:09:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_s6 [2022-11-03 04:09:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_s6 [2022-11-03 04:09:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_agc_default [2022-11-03 04:09:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_agc_default [2022-11-03 04:09:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_cleanup [2022-11-03 04:09:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_cleanup [2022-11-03 04:09:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-11-03 04:09:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-11-03 04:09:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_wr [2022-11-03 04:09:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_wr [2022-11-03 04:09:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2022-11-03 04:09:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2022-11-03 04:09:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 04:09:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 04:09:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_wr [2022-11-03 04:09:05,060 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_wr [2022-11-03 04:09:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 04:09:05,060 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 04:09:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:09:05,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:09:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 04:09:05,061 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 04:09:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:09:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_reg [2022-11-03 04:09:05,061 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_reg [2022-11-03 04:09:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-03 04:09:05,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-03 04:09:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:05,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-03 04:09:05,062 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-03 04:09:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-03 04:09:05,063 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-03 04:09:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 04:09:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_alloc_buf [2022-11-03 04:09:05,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_alloc_buf [2022-11-03 04:09:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-03 04:09:05,064 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-03 04:09:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 04:09:05,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 04:09:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-03 04:09:05,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-03 04:09:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 04:09:05,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 04:09:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 04:09:05,065 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 04:09:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:09:05,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:09:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_init_hardware [2022-11-03 04:09:05,066 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_init_hardware [2022-11-03 04:09:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 04:09:05,067 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 04:09:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_submit_rx_buf [2022-11-03 04:09:05,068 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_submit_rx_buf [2022-11-03 04:09:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-03 04:09:05,068 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-03 04:09:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-03 04:09:05,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-03 04:09:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:09:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:09:05,069 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:09:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 04:09:05,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 04:09:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:09:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure simple_attr_write [2022-11-03 04:09:05,080 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_attr_write [2022-11-03 04:09:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_remove_interface [2022-11-03 04:09:05,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_remove_interface [2022-11-03 04:09:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2022-11-03 04:09:05,081 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2022-11-03 04:09:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2022-11-03 04:09:05,081 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2022-11-03 04:09:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure trace_read_temp [2022-11-03 04:09:05,081 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_read_temp [2022-11-03 04:09:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_cmd_deinit [2022-11-03 04:09:05,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_cmd_deinit [2022-11-03 04:09:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 04:09:05,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 04:09:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-03 04:09:05,084 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-03 04:09:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-03 04:09:05,084 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-03 04:09:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 04:09:05,084 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 04:09:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_alloc [2022-11-03 04:09:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_alloc [2022-11-03 04:09:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 04:09:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 04:09:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 04:09:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 04:09:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vco_cal [2022-11-03 04:09:05,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vco_cal [2022-11-03 04:09:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2022-11-03 04:09:05,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2022-11-03 04:09:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 04:09:05,086 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 04:09:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___3 [2022-11-03 04:09:05,087 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___3 [2022-11-03 04:09:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___2 [2022-11-03 04:09:05,087 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___2 [2022-11-03 04:09:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___1 [2022-11-03 04:09:05,087 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___1 [2022-11-03 04:09:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___0 [2022-11-03 04:09:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___0 [2022-11-03 04:09:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2022-11-03 04:09:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2022-11-03 04:09:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___4 [2022-11-03 04:09:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___4 [2022-11-03 04:09:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 04:09:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 04:09:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-11-03 04:09:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-11-03 04:09:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rr [2022-11-03 04:09:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rr [2022-11-03 04:09:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 04:09:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 04:09:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-03 04:09:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-03 04:09:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ctrlch [2022-11-03 04:09:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ctrlch [2022-11-03 04:09:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-03 04:09:05,091 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-03 04:09:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:09:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_request [2022-11-03 04:09:05,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_request [2022-11-03 04:09:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_set [2022-11-03 04:09:05,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_set [2022-11-03 04:09:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2022-11-03 04:09:05,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2022-11-03 04:09:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:09:05,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:09:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx [2022-11-03 04:09:05,097 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx [2022-11-03 04:09:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_configure_filter [2022-11-03 04:09:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_configure_filter [2022-11-03 04:09:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr [2022-11-03 04:09:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr [2022-11-03 04:09:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2022-11-03 04:09:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2022-11-03 04:09:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-03 04:09:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-03 04:09:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_config_tsf [2022-11-03 04:09:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_config_tsf [2022-11-03 04:09:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-11-03 04:09:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-11-03 04:09:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_temp_comp [2022-11-03 04:09:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_temp_comp [2022-11-03 04:09:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rxdc_cal [2022-11-03 04:09:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rxdc_cal [2022-11-03 04:09:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure field_validate [2022-11-03 04:09:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure field_validate [2022-11-03 04:09:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2022-11-03 04:09:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2022-11-03 04:09:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2022-11-03 04:09:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_resume [2022-11-03 04:09:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_resume [2022-11-03 04:09:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-03 04:09:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-03 04:09:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-03 04:09:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-03 04:09:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 04:09:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 04:09:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 04:09:05,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 04:09:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-03 04:09:05,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-03 04:09:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 04:09:05,116 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 04:09:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 04:09:05,117 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 04:09:05,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:09:05,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:09:05,117 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_ampdu_action [2022-11-03 04:09:05,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_ampdu_action [2022-11-03 04:09:05,117 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-03 04:09:05,118 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-03 04:09:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_addr_wr [2022-11-03 04:09:05,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_addr_wr [2022-11-03 04:09:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_temp [2022-11-03 04:09:05,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_temp [2022-11-03 04:09:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_function_select [2022-11-03 04:09:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_function_select [2022-11-03 04:09:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-03 04:09:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-03 04:09:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_sta_rate_tbl_update [2022-11-03 04:09:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_sta_rate_tbl_update [2022-11-03 04:09:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_disconnect [2022-11-03 04:09:05,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_disconnect [2022-11-03 04:09:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-03 04:09:05,120 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-03 04:09:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_chip_onoff [2022-11-03 04:09:05,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_chip_onoff [2022-11-03 04:09:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_key [2022-11-03 04:09:05,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_key [2022-11-03 04:09:05,121 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 04:09:05,121 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 04:09:05,121 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___0 [2022-11-03 04:09:05,121 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___0 [2022-11-03 04:09:05,121 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___2 [2022-11-03 04:09:05,121 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___2 [2022-11-03 04:09:05,122 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___1 [2022-11-03 04:09:05,122 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___1 [2022-11-03 04:09:05,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-03 04:09:05,122 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-03 04:09:05,122 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_bw [2022-11-03 04:09:05,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_bw [2022-11-03 04:09:05,123 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_wcid_set_key [2022-11-03 04:09:05,123 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_wcid_set_key [2022-11-03 04:09:05,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:09:05,123 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_ctrlch [2022-11-03 04:09:05,123 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_ctrlch [2022-11-03 04:09:05,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:09:05,123 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_wr [2022-11-03 04:09:05,124 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_wr [2022-11-03 04:09:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure trace_raw_output_prep [2022-11-03 04:09:05,124 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_raw_output_prep [2022-11-03 04:09:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 04:09:05,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 04:09:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:09:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_efuse_read [2022-11-03 04:09:05,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_efuse_read [2022-11-03 04:09:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_cleanup [2022-11-03 04:09:05,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_cleanup [2022-11-03 04:09:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rr [2022-11-03 04:09:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rr [2022-11-03 04:09:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_queue_mapping [2022-11-03 04:09:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_queue_mapping [2022-11-03 04:09:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:09:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:09:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_tx_rate_val [2022-11-03 04:09:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_tx_rate_val [2022-11-03 04:09:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_pages [2022-11-03 04:09:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_pages [2022-11-03 04:09:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 04:09:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 04:09:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 04:09:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 04:09:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan_complete [2022-11-03 04:09:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan_complete [2022-11-03 04:09:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2022-11-03 04:09:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2022-11-03 04:09:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put_le32 [2022-11-03 04:09:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put_le32 [2022-11-03 04:09:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-03 04:09:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-03 04:09:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr_copy [2022-11-03 04:09:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr_copy [2022-11-03 04:09:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_add_interface [2022-11-03 04:09:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_add_interface [2022-11-03 04:09:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-03 04:09:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-03 04:09:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_submit_buf [2022-11-03 04:09:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_submit_buf [2022-11-03 04:09:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-03 04:09:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-03 04:09:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_fw [2022-11-03 04:09:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_fw [2022-11-03 04:09:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 04:09:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 04:09:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 04:09:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 04:09:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-03 04:09:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-03 04:09:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 04:09:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 04:09:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-03 04:09:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-03 04:09:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure lin2dBd [2022-11-03 04:09:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure lin2dBd [2022-11-03 04:09:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:09:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:09:05,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:09:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 04:09:05,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 04:09:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 04:09:05,141 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 04:09:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_to_usb_dev [2022-11-03 04:09:05,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_to_usb_dev [2022-11-03 04:09:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_r47_get [2022-11-03 04:09:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_r47_get [2022-11-03 04:09:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx_stat [2022-11-03 04:09:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx_stat [2022-11-03 04:09:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_notify [2022-11-03 04:09:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_notify [2022-11-03 04:09:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 04:09:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 04:09:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-03 04:09:05,143 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-03 04:09:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_conf_tx [2022-11-03 04:09:05,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_conf_tx [2022-11-03 04:09:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 04:09:05,143 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 04:09:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:09:05,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:09:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure trace_handle_return [2022-11-03 04:09:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_handle_return [2022-11-03 04:09:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_hdrlen_from_skb [2022-11-03 04:09:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_hdrlen_from_skb [2022-11-03 04:09:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_wcid_setup [2022-11-03 04:09:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_wcid_setup [2022-11-03 04:09:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 04:09:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 04:09:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 04:09:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 04:09:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_burst_write_regs [2022-11-03 04:09:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_burst_write_regs [2022-11-03 04:09:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2022-11-03 04:09:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2022-11-03 04:09:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___0 [2022-11-03 04:09:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___0 [2022-11-03 04:09:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-03 04:09:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-03 04:09:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-03 04:09:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-03 04:09:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-03 04:09:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-03 04:09:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:09:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2022-11-03 04:09:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2022-11-03 04:09:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_write_reg_pairs [2022-11-03 04:09:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_write_reg_pairs [2022-11-03 04:09:05,147 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-03 04:09:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-03 04:09:05,147 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_get_key_info [2022-11-03 04:09:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_get_key_info [2022-11-03 04:09:05,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-03 04:09:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-03 04:09:05,147 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-03 04:09:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-03 04:09:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_remove [2022-11-03 04:09:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_remove [2022-11-03 04:09:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 04:09:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 04:09:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bss_info_changed [2022-11-03 04:09:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bss_info_changed [2022-11-03 04:09:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2022-11-03 04:09:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2022-11-03 04:09:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:09:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:09:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 04:09:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 04:09:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wait_asic_ready [2022-11-03 04:09:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wait_asic_ready [2022-11-03 04:09:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-03 04:09:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-03 04:09:05,150 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan [2022-11-03 04:09:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan [2022-11-03 04:09:05,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 04:09:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 04:09:05,150 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 04:09:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 04:09:05,150 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_calibrate [2022-11-03 04:09:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_calibrate [2022-11-03 04:09:05,151 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_send [2022-11-03 04:09:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_send [2022-11-03 04:09:05,151 INFO L130 BoogieDeclarations]: Found specification of procedure firmware_running [2022-11-03 04:09:05,167 INFO L138 BoogieDeclarations]: Found implementation of procedure firmware_running [2022-11-03 04:09:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rmw [2022-11-03 04:09:05,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rmw [2022-11-03 04:09:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll [2022-11-03 04:09:05,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll [2022-11-03 04:09:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 04:09:05,168 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 04:09:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_power_rate [2022-11-03 04:09:05,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_power_rate [2022-11-03 04:09:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 04:09:05,168 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 04:09:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_has_tssi [2022-11-03 04:09:05,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_has_tssi [2022-11-03 04:09:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:09:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll_msec [2022-11-03 04:09:05,169 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll_msec [2022-11-03 04:09:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 04:09:05,169 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 04:09:07,119 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:09:07,124 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:09:07,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:10:00,744 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:10:15,330 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:10:15,330 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:10:15,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:15 BoogieIcfgContainer [2022-11-03 04:10:15,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:10:15,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:10:15,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:10:15,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:10:15,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:08:48" (1/3) ... [2022-11-03 04:10:15,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f61bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:10:15, skipping insertion in model container [2022-11-03 04:10:15,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:02" (2/3) ... [2022-11-03 04:10:15,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f61bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:10:15, skipping insertion in model container [2022-11-03 04:10:15,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:15" (3/3) ... [2022-11-03 04:10:15,354 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-03 04:10:15,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:10:15,379 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:10:15,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:10:15,571 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;@2ccd7304, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:10:15,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:10:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 4435 states, 2662 states have (on average 1.3467317806160781) internal successors, (3585), 2826 states have internal predecessors, (3585), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) [2022-11-03 04:10:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 04:10:15,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:15,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:15,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:15,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:15,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2045960850, now seen corresponding path program 1 times [2022-11-03 04:10:15,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:10:15,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055453682] [2022-11-03 04:10:15,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:15,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:10:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:17,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:17,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055453682] [2022-11-03 04:10:17,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055453682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:17,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:17,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:10:17,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199177293] [2022-11-03 04:10:17,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:17,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:10:17,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:10:17,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:10:17,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:10:17,924 INFO L87 Difference]: Start difference. First operand has 4435 states, 2662 states have (on average 1.3467317806160781) internal successors, (3585), 2826 states have internal predecessors, (3585), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-03 04:10:20,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:23,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:25,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:30,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:33,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:39,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:40,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:40,640 INFO L93 Difference]: Finished difference Result 13133 states and 20391 transitions. [2022-11-03 04:10:40,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:10:40,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-11-03 04:10:40,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:40,742 INFO L225 Difference]: With dead ends: 13133 [2022-11-03 04:10:40,742 INFO L226 Difference]: Without dead ends: 8605 [2022-11-03 04:10:40,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:10:40,823 INFO L413 NwaCegarLoop]: 7761 mSDtfsCounter, 6323 mSDsluCounter, 6588 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 13827 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:40,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 13827 Invalid, 1102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1093 Invalid, 6 Unknown, 0 Unchecked, 21.8s Time] [2022-11-03 04:10:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2022-11-03 04:10:41,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 8590. [2022-11-03 04:10:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8590 states, 5210 states have (on average 1.32936660268714) internal successors, (6926), 5434 states have internal predecessors, (6926), 2922 states have call successors, (2922), 458 states have call predecessors, (2922), 457 states have return successors, (2916), 2896 states have call predecessors, (2916), 2904 states have call successors, (2916) [2022-11-03 04:10:41,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8590 states to 8590 states and 12764 transitions. [2022-11-03 04:10:41,662 INFO L78 Accepts]: Start accepts. Automaton has 8590 states and 12764 transitions. Word has length 54 [2022-11-03 04:10:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:41,663 INFO L495 AbstractCegarLoop]: Abstraction has 8590 states and 12764 transitions. [2022-11-03 04:10:41,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-03 04:10:41,664 INFO L276 IsEmpty]: Start isEmpty. Operand 8590 states and 12764 transitions. [2022-11-03 04:10:41,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 04:10:41,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:41,672 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:10:41,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:10:41,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:41,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:41,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1134272768, now seen corresponding path program 1 times [2022-11-03 04:10:41,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:10:41,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064867524] [2022-11-03 04:10:41,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:10:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:10:43,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:43,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064867524] [2022-11-03 04:10:43,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064867524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:43,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:43,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:10:43,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052889790] [2022-11-03 04:10:43,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:43,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:10:43,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:10:43,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:10:43,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:10:43,021 INFO L87 Difference]: Start difference. First operand 8590 states and 12764 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:10:45,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:48,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:50,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:54,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:57,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:01,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:04,542 INFO L93 Difference]: Finished difference Result 15553 states and 23078 transitions. [2022-11-03 04:11:04,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:04,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2022-11-03 04:11:04,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:04,710 INFO L225 Difference]: With dead ends: 15553 [2022-11-03 04:11:04,711 INFO L226 Difference]: Without dead ends: 15549 [2022-11-03 04:11:04,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:04,728 INFO L413 NwaCegarLoop]: 7993 mSDtfsCounter, 6172 mSDsluCounter, 5753 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6182 SdHoareTripleChecker+Valid, 13287 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:04,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6182 Valid, 13287 Invalid, 1096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1086 Invalid, 6 Unknown, 0 Unchecked, 20.8s Time] [2022-11-03 04:11:04,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15549 states. [2022-11-03 04:11:05,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15549 to 15538. [2022-11-03 04:11:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15538 states, 9477 states have (on average 1.3302732932362562) internal successors, (12607), 9881 states have internal predecessors, (12607), 5205 states have call successors, (5205), 861 states have call predecessors, (5205), 855 states have return successors, (5250), 5164 states have call predecessors, (5250), 5187 states have call successors, (5250) [2022-11-03 04:11:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15538 states to 15538 states and 23062 transitions. [2022-11-03 04:11:05,875 INFO L78 Accepts]: Start accepts. Automaton has 15538 states and 23062 transitions. Word has length 68 [2022-11-03 04:11:05,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:05,876 INFO L495 AbstractCegarLoop]: Abstraction has 15538 states and 23062 transitions. [2022-11-03 04:11:05,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:11:05,877 INFO L276 IsEmpty]: Start isEmpty. Operand 15538 states and 23062 transitions. [2022-11-03 04:11:05,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-03 04:11:05,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:05,882 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:11:05,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:11:05,882 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:05,883 INFO L85 PathProgramCache]: Analyzing trace with hash 800215653, now seen corresponding path program 1 times [2022-11-03 04:11:05,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:05,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11114691] [2022-11-03 04:11:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:05,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:11:06,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:06,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11114691] [2022-11-03 04:11:06,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11114691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:06,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:06,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:06,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234206299] [2022-11-03 04:11:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:06,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:06,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:06,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:06,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:06,901 INFO L87 Difference]: Start difference. First operand 15538 states and 23062 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:11:09,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:11,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:13,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:16,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:19,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:23,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:24,960 INFO L93 Difference]: Finished difference Result 16976 states and 25099 transitions. [2022-11-03 04:11:24,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:24,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2022-11-03 04:11:24,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:25,055 INFO L225 Difference]: With dead ends: 16976 [2022-11-03 04:11:25,055 INFO L226 Difference]: Without dead ends: 16973 [2022-11-03 04:11:25,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:25,072 INFO L413 NwaCegarLoop]: 6862 mSDtfsCounter, 6322 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6330 SdHoareTripleChecker+Valid, 9329 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:25,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6330 Valid, 9329 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 814 Invalid, 5 Unknown, 0 Unchecked, 17.5s Time] [2022-11-03 04:11:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16973 states. [2022-11-03 04:11:25,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16973 to 16960. [2022-11-03 04:11:25,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16960 states, 10299 states have (on average 1.3268278473638218) internal successors, (13665), 10764 states have internal predecessors, (13665), 5676 states have call successors, (5676), 988 states have call predecessors, (5676), 984 states have return successors, (5728), 5634 states have call predecessors, (5728), 5659 states have call successors, (5728) [2022-11-03 04:11:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16960 states to 16960 states and 25069 transitions. [2022-11-03 04:11:26,066 INFO L78 Accepts]: Start accepts. Automaton has 16960 states and 25069 transitions. Word has length 69 [2022-11-03 04:11:26,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:26,067 INFO L495 AbstractCegarLoop]: Abstraction has 16960 states and 25069 transitions. [2022-11-03 04:11:26,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:11:26,067 INFO L276 IsEmpty]: Start isEmpty. Operand 16960 states and 25069 transitions. [2022-11-03 04:11:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-03 04:11:26,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:26,072 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:11:26,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:11:26,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:26,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:26,073 INFO L85 PathProgramCache]: Analyzing trace with hash -965615453, now seen corresponding path program 1 times [2022-11-03 04:11:26,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:26,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251176203] [2022-11-03 04:11:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:26,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:11:26,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:26,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251176203] [2022-11-03 04:11:26,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251176203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:26,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:26,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:26,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973261087] [2022-11-03 04:11:26,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:26,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:26,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:26,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:26,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:26,973 INFO L87 Difference]: Start difference. First operand 16960 states and 25069 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:11:29,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:31,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:33,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:38,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:41,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:45,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:45,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:45,783 INFO L93 Difference]: Finished difference Result 17866 states and 26329 transitions. [2022-11-03 04:11:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:45,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2022-11-03 04:11:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:45,888 INFO L225 Difference]: With dead ends: 17866 [2022-11-03 04:11:45,888 INFO L226 Difference]: Without dead ends: 17863 [2022-11-03 04:11:45,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:45,908 INFO L413 NwaCegarLoop]: 6916 mSDtfsCounter, 6313 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6325 SdHoareTripleChecker+Valid, 9383 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:45,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6325 Valid, 9383 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 814 Invalid, 6 Unknown, 0 Unchecked, 18.2s Time] [2022-11-03 04:11:45,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17863 states. [2022-11-03 04:11:47,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17863 to 17852. [2022-11-03 04:11:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17852 states, 10823 states have (on average 1.3253256952785735) internal successors, (14344), 11327 states have internal predecessors, (14344), 5956 states have call successors, (5956), 1074 states have call predecessors, (5956), 1072 states have return successors, (6016), 5913 states have call predecessors, (6016), 5940 states have call successors, (6016) [2022-11-03 04:11:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17852 states to 17852 states and 26316 transitions. [2022-11-03 04:11:47,169 INFO L78 Accepts]: Start accepts. Automaton has 17852 states and 26316 transitions. Word has length 70 [2022-11-03 04:11:47,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:47,170 INFO L495 AbstractCegarLoop]: Abstraction has 17852 states and 26316 transitions. [2022-11-03 04:11:47,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:11:47,170 INFO L276 IsEmpty]: Start isEmpty. Operand 17852 states and 26316 transitions. [2022-11-03 04:11:47,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 04:11:47,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:47,174 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:11:47,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:11:47,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:47,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:47,175 INFO L85 PathProgramCache]: Analyzing trace with hash 128199976, now seen corresponding path program 1 times [2022-11-03 04:11:47,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:47,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485634749] [2022-11-03 04:11:47,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:47,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:48,042 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:11:48,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:48,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485634749] [2022-11-03 04:11:48,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485634749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:48,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:48,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:48,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208709734] [2022-11-03 04:11:48,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:48,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:48,045 INFO L87 Difference]: Start difference. First operand 17852 states and 26316 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:11:50,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:53,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:55,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:57,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:00,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:03,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:06,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:06,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:06,484 INFO L93 Difference]: Finished difference Result 18962 states and 27834 transitions. [2022-11-03 04:12:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:12:06,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 71 [2022-11-03 04:12:06,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:06,587 INFO L225 Difference]: With dead ends: 18962 [2022-11-03 04:12:06,587 INFO L226 Difference]: Without dead ends: 18959 [2022-11-03 04:12:06,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:06,609 INFO L413 NwaCegarLoop]: 6470 mSDtfsCounter, 6403 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6409 SdHoareTripleChecker+Valid, 7961 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:06,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6409 Valid, 7961 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 726 Invalid, 5 Unknown, 0 Unchecked, 17.8s Time] [2022-11-03 04:12:06,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18959 states. [2022-11-03 04:12:07,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18959 to 18950. [2022-11-03 04:12:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18950 states, 11468 states have (on average 1.3231600976630624) internal successors, (15174), 12011 states have internal predecessors, (15174), 6294 states have call successors, (6294), 1189 states have call predecessors, (6294), 1187 states have return successors, (6355), 6250 states have call predecessors, (6355), 6279 states have call successors, (6355) [2022-11-03 04:12:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18950 states to 18950 states and 27823 transitions. [2022-11-03 04:12:07,960 INFO L78 Accepts]: Start accepts. Automaton has 18950 states and 27823 transitions. Word has length 71 [2022-11-03 04:12:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:07,960 INFO L495 AbstractCegarLoop]: Abstraction has 18950 states and 27823 transitions. [2022-11-03 04:12:07,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 18950 states and 27823 transitions. [2022-11-03 04:12:07,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 04:12:07,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:07,964 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:12:07,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:12:07,965 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:07,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:07,965 INFO L85 PathProgramCache]: Analyzing trace with hash -323255226, now seen corresponding path program 1 times [2022-11-03 04:12:07,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:07,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590483512] [2022-11-03 04:12:07,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:07,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:08,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:12:08,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:08,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590483512] [2022-11-03 04:12:08,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590483512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:08,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:08,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:12:08,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785555629] [2022-11-03 04:12:08,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:08,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:12:08,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:08,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:12:08,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:08,849 INFO L87 Difference]: Start difference. First operand 18950 states and 27823 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:10,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:13,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:15,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:19,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:22,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:26,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:29,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:29,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:29,491 INFO L93 Difference]: Finished difference Result 23347 states and 33951 transitions. [2022-11-03 04:12:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:12:29,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2022-11-03 04:12:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:29,617 INFO L225 Difference]: With dead ends: 23347 [2022-11-03 04:12:29,617 INFO L226 Difference]: Without dead ends: 23343 [2022-11-03 04:12:29,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:29,640 INFO L413 NwaCegarLoop]: 7124 mSDtfsCounter, 5806 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5818 SdHoareTripleChecker+Valid, 10004 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:29,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5818 Valid, 10004 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 883 Invalid, 6 Unknown, 0 Unchecked, 19.6s Time] [2022-11-03 04:12:29,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23343 states. [2022-11-03 04:12:31,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23343 to 23328. [2022-11-03 04:12:31,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23328 states, 14029 states have (on average 1.3164159954380212) internal successors, (18468), 14746 states have internal predecessors, (18468), 7688 states have call successors, (7688), 1614 states have call predecessors, (7688), 1610 states have return successors, (7771), 7634 states have call predecessors, (7771), 7675 states have call successors, (7771) [2022-11-03 04:12:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23328 states to 23328 states and 33927 transitions. [2022-11-03 04:12:31,193 INFO L78 Accepts]: Start accepts. Automaton has 23328 states and 33927 transitions. Word has length 72 [2022-11-03 04:12:31,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:31,194 INFO L495 AbstractCegarLoop]: Abstraction has 23328 states and 33927 transitions. [2022-11-03 04:12:31,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:31,195 INFO L276 IsEmpty]: Start isEmpty. Operand 23328 states and 33927 transitions. [2022-11-03 04:12:31,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 04:12:31,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:31,198 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:12:31,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:12:31,199 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:31,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:31,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1433459733, now seen corresponding path program 1 times [2022-11-03 04:12:31,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:31,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607423434] [2022-11-03 04:12:31,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:31,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:12:32,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:32,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607423434] [2022-11-03 04:12:32,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607423434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:32,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:32,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:12:32,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39500625] [2022-11-03 04:12:32,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:32,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:12:32,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:32,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:12:32,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:32,113 INFO L87 Difference]: Start difference. First operand 23328 states and 33927 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:36,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:38,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:42,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:49,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:51,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:51,772 INFO L93 Difference]: Finished difference Result 42136 states and 61615 transitions. [2022-11-03 04:12:51,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:12:51,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2022-11-03 04:12:51,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:51,962 INFO L225 Difference]: With dead ends: 42136 [2022-11-03 04:12:51,962 INFO L226 Difference]: Without dead ends: 42132 [2022-11-03 04:12:51,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:51,987 INFO L413 NwaCegarLoop]: 7553 mSDtfsCounter, 6139 mSDsluCounter, 6476 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6143 SdHoareTripleChecker+Valid, 13508 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:51,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6143 Valid, 13508 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1078 Invalid, 4 Unknown, 0 Unchecked, 17.9s Time] [2022-11-03 04:12:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42132 states. [2022-11-03 04:12:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42132 to 42120. [2022-11-03 04:12:54,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42120 states, 25378 states have (on average 1.3170462605406257) internal successors, (33424), 26585 states have internal predecessors, (33424), 13829 states have call successors, (13829), 2929 states have call predecessors, (13829), 2912 states have return successors, (14337), 13747 states have call predecessors, (14337), 13816 states have call successors, (14337) [2022-11-03 04:12:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42120 states to 42120 states and 61590 transitions. [2022-11-03 04:12:54,522 INFO L78 Accepts]: Start accepts. Automaton has 42120 states and 61590 transitions. Word has length 73 [2022-11-03 04:12:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:54,522 INFO L495 AbstractCegarLoop]: Abstraction has 42120 states and 61590 transitions. [2022-11-03 04:12:54,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 42120 states and 61590 transitions. [2022-11-03 04:12:54,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-03 04:12:54,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:54,532 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:12:54,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:12:54,533 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1490056215, now seen corresponding path program 1 times [2022-11-03 04:12:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:54,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631058340] [2022-11-03 04:12:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:12:55,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:55,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631058340] [2022-11-03 04:12:55,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631058340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:55,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:55,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:12:55,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419446461] [2022-11-03 04:12:55,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:55,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:12:55,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:55,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:12:55,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:55,899 INFO L87 Difference]: Start difference. First operand 42120 states and 61590 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:12:57,264 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 [] [2022-11-03 04:12:59,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:01,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:05,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:08,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:15,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:18,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:18,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:18,459 INFO L93 Difference]: Finished difference Result 80035 states and 118215 transitions. [2022-11-03 04:13:18,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:13:18,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2022-11-03 04:13:18,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:19,012 INFO L225 Difference]: With dead ends: 80035 [2022-11-03 04:13:19,012 INFO L226 Difference]: Without dead ends: 80031 [2022-11-03 04:13:19,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:13:19,040 INFO L413 NwaCegarLoop]: 7604 mSDtfsCounter, 6161 mSDsluCounter, 6473 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6165 SdHoareTripleChecker+Valid, 13559 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:19,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6165 Valid, 13559 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1075 Invalid, 5 Unknown, 0 Unchecked, 19.4s Time] [2022-11-03 04:13:19,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80031 states. [2022-11-03 04:13:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80031 to 80016. [2022-11-03 04:13:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80016 states, 48327 states have (on average 1.3158482835681917) internal successors, (63591), 50550 states have internal predecessors, (63591), 26063 states have call successors, (26063), 5680 states have call predecessors, (26063), 5625 states have return successors, (28522), 25853 states have call predecessors, (28522), 26050 states have call successors, (28522) [2022-11-03 04:13:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80016 states to 80016 states and 118176 transitions. [2022-11-03 04:13:24,422 INFO L78 Accepts]: Start accepts. Automaton has 80016 states and 118176 transitions. Word has length 74 [2022-11-03 04:13:24,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:24,422 INFO L495 AbstractCegarLoop]: Abstraction has 80016 states and 118176 transitions. [2022-11-03 04:13:24,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:13:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 80016 states and 118176 transitions. [2022-11-03 04:13:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 04:13:24,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:24,427 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:13:24,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:13:24,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1050425006, now seen corresponding path program 1 times [2022-11-03 04:13:24,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:24,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820088106] [2022-11-03 04:13:24,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:13:25,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:25,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820088106] [2022-11-03 04:13:25,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820088106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:25,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:25,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:13:25,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638789473] [2022-11-03 04:13:25,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:25,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:13:25,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:25,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:13:25,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:13:25,680 INFO L87 Difference]: Start difference. First operand 80016 states and 118176 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:13:26,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:28,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:30,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:35,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:41,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:44,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:44,738 INFO L93 Difference]: Finished difference Result 130682 states and 193670 transitions. [2022-11-03 04:13:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:13:44,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-11-03 04:13:44,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:45,433 INFO L225 Difference]: With dead ends: 130682 [2022-11-03 04:13:45,434 INFO L226 Difference]: Without dead ends: 130669 [2022-11-03 04:13:45,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:13:45,474 INFO L413 NwaCegarLoop]: 7036 mSDtfsCounter, 6413 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6413 SdHoareTripleChecker+Valid, 10807 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:45,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6413 Valid, 10807 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 913 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2022-11-03 04:13:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130669 states.