./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--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P --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 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:28:08,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:28:08,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:28:08,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:28:08,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:28:08,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:28:08,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:28:08,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:28:08,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:28:08,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:28:08,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:28:08,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:28:08,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:28:08,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:28:08,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:28:08,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:28:08,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:28:09,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:28:09,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:28:09,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:28:09,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:28:09,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:28:09,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:28:09,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:28:09,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:28:09,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:28:09,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:28:09,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:28:09,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:28:09,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:28:09,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:28:09,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:28:09,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:28:09,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:28:09,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:28:09,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:28:09,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:28:09,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:28:09,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:28:09,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:28:09,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:28:09,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:28:09,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:28:09,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:28:09,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:28:09,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:28:09,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:28:09,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:28:09,074 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:28:09,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:28:09,075 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:28:09,075 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:28:09,076 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:28:09,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:28:09,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:28:09,076 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:28:09,077 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:28:09,077 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:28:09,077 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:28:09,077 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:28:09,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:28:09,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:28:09,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:28:09,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:28:09,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:28:09,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:28:09,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:28:09,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:28:09,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:28:09,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:28:09,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:28:09,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:28:09,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:28:09,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:28:09,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:28:09,083 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:28:09,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:28:09,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:28:09,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:28:09,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:28:09,084 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 [2021-11-21 01:28:09,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:28:09,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:28:09,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:28:09,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:28:09,366 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:28:09,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-21 01:28:09,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/data/c8678bd64/ebaed1bf1ebe4d30adb1ceea53647607/FLAGcd9c2e45e [2021-11-21 01:28:10,503 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:28:10,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-21 01:28:10,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/data/c8678bd64/ebaed1bf1ebe4d30adb1ceea53647607/FLAGcd9c2e45e [2021-11-21 01:28:10,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/data/c8678bd64/ebaed1bf1ebe4d30adb1ceea53647607 [2021-11-21 01:28:10,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:28:10,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:28:10,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:28:10,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:28:10,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:28:10,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:28:10" (1/1) ... [2021-11-21 01:28:10,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bd3b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:10, skipping insertion in model container [2021-11-21 01:28:10,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:28:10" (1/1) ... [2021-11-21 01:28:10,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:28:11,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:28:17,252 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_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-21 01:28:17,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:28:17,703 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:28:18,437 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_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-21 01:28:18,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:28:19,091 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:28:19,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19 WrapperNode [2021-11-21 01:28:19,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:28:19,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:28:19,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:28:19,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:28:19,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:19,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:19,934 INFO L137 Inliner]: procedures = 646, calls = 8206, calls flagged for inlining = 300, calls inlined = 249, statements flattened = 14997 [2021-11-21 01:28:19,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:28:19,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:28:19,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:28:19,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:28:19,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:19,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:20,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:20,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:20,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:20,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:20,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:20,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:28:20,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:28:20,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:28:20,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:28:20,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (1/1) ... [2021-11-21 01:28:20,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:28:20,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:20,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:28:20,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ac4da1c-67be-4cf3-91f5-b92a14e2447a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:28:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:28:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:28:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resolve_flow_ctrl [2021-11-21 01:28:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resolve_flow_ctrl [2021-11-21 01:28:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure load_rv2p_fw [2021-11-21 01:28:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure load_rv2p_fw [2021-11-21 01:28:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_bmsr1 [2021-11-21 01:28:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_bmsr1 [2021-11-21 01:28:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-21 01:28:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-21 01:28:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-21 01:28:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-21 01:28:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int [2021-11-21 01:28:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int [2021-11-21 01:28:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:28:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:28:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:28:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:28:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 01:28:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 01:28:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rxbd_rings [2021-11-21 01:28:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rxbd_rings [2021-11-21 01:28:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read_dword [2021-11-21 01:28:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read_dword [2021-11-21 01:28:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-21 01:28:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-21 01:28:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure get_l2_fhdr [2021-11-21 01:28:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure get_l2_fhdr [2021-11-21 01:28:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_stop [2021-11-21 01:28:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_stop [2021-11-21 01:28:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:28:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:28:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_start [2021-11-21 01:28:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_start [2021-11-21 01:28:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_int_mode [2021-11-21 01:28:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_int_mode [2021-11-21 01:28:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-21 01:28:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-21 01:28:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-21 01:28:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-21 01:28:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_bmsr1 [2021-11-21 01:28:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_bmsr1 [2021-11-21 01:28:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_forced_2g5 [2021-11-21 01:28:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_forced_2g5 [2021-11-21 01:28:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 01:28:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 01:28:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_xceiver_str [2021-11-21 01:28:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_xceiver_str [2021-11-21 01:28:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rx_context [2021-11-21 01:28:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rx_context [2021-11-21 01:28:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:28:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:28:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-21 01:28:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-21 01:28:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:28:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:28:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resume [2021-11-21 01:28:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resume [2021-11-21 01:28:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-21 01:28:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-21 01:28:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_ctx_wr [2021-11-21 01:28:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_ctx_wr [2021-11-21 01:28:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-21 01:28:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-21 01:28:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:28:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:28:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_remote_phy [2021-11-21 01:28:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_remote_phy [2021-11-21 01:28:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_data [2021-11-21 01:28:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_data [2021-11-21 01:28:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_phy [2021-11-21 01:28:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_phy [2021-11-21 01:28:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-21 01:28:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-21 01:28:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:28:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:28:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:28:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:28:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:28:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:28:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:28:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:28:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:28:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 01:28:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 01:28:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:28:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_napi [2021-11-21 01:28:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_napi [2021-11-21 01:28:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_read_phy [2021-11-21 01:28:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_read_phy [2021-11-21 01:28:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-21 01:28:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-21 01:28:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_request_irq [2021-11-21 01:28:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_request_irq [2021-11-21 01:28:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 01:28:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 01:28:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_wr_ind [2021-11-21 01:28:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_wr_ind [2021-11-21 01:28:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:28:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:28:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:28:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:28:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:28:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:28:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-21 01:28:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-21 01:28:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:28:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 01:28:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 01:28:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-21 01:28:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-21 01:28:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_mode [2021-11-21 01:28:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_mode [2021-11-21 01:28:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_intr [2021-11-21 01:28:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_intr [2021-11-21 01:28:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:28:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:28:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nic [2021-11-21 01:28:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nic [2021-11-21 01:28:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:28:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:28:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_wol [2021-11-21 01:28:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_wol [2021-11-21 01:28:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:28:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_addr [2021-11-21 01:28:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_addr [2021-11-21 01:28:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2021-11-21 01:28:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2021-11-21 01:28:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_nic [2021-11-21 01:28:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_nic [2021-11-21 01:28:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-11-21 01:28:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-11-21 01:28:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_msi [2021-11-21 01:28:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_msi [2021-11-21 01:28:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:28:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:28:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:28:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_io_error_detected [2021-11-21 01:28:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_io_error_detected [2021-11-21 01:28:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-21 01:28:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-21 01:28:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:28:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:28:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_skbs [2021-11-21 01:28:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_skbs [2021-11-21 01:28:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_channels [2021-11-21 01:28:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_channels [2021-11-21 01:28:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure __bnx2_free_irq [2021-11-21 01:28:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __bnx2_free_irq [2021-11-21 01:28:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_and_enable_2g5 [2021-11-21 01:28:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_and_enable_2g5 [2021-11-21 01:28:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 01:28:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 01:28:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-21 01:28:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-21 01:28:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_msix_tbl [2021-11-21 01:28:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_msix_tbl [2021-11-21 01:28:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int_sync [2021-11-21 01:28:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int_sync [2021-11-21 01:28:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 01:28:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 01:28:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_chip [2021-11-21 01:28:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_chip [2021-11-21 01:28:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_del_napi [2021-11-21 01:28:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_del_napi [2021-11-21 01:28:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-21 01:28:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-21 01:28:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_settings [2021-11-21 01:28:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_settings [2021-11-21 01:28:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:28:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:28:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-21 01:28:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-21 01:28:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure check_mips_fw_entry [2021-11-21 01:28:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mips_fw_entry [2021-11-21 01:28:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_start [2021-11-21 01:28:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_start [2021-11-21 01:28:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_rd [2021-11-21 01:28:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_rd [2021-11-21 01:28:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-21 01:28:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-21 01:28:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_link [2021-11-21 01:28:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_link [2021-11-21 01:28:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:28:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2021-11-21 01:28:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2021-11-21 01:28:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-21 01:28:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-21 01:28:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_enable [2021-11-21 01:28:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_enable [2021-11-21 01:28:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:28:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:28:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:28:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:28:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-21 01:28:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-21 01:28:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:28:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_wol [2021-11-21 01:28:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_wol [2021-11-21 01:28:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-21 01:28:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-21 01:28:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_pauseparam [2021-11-21 01:28:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_pauseparam [2021-11-21 01:28:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 01:28:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 01:28:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_ioctl [2021-11-21 01:28:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_ioctl [2021-11-21 01:28:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_timeout [2021-11-21 01:28:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_timeout [2021-11-21 01:28:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_one [2021-11-21 01:28:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_one [2021-11-21 01:28:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:28:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:28:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:28:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:28:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_find_info_keyword [2021-11-21 01:28:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_find_info_keyword [2021-11-21 01:28:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-21 01:28:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-21 01:28:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_acquire_nvram_lock [2021-11-21 01:28:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_acquire_nvram_lock [2021-11-21 01:28:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 01:28:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 01:28:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 01:28:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 01:28:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-11-21 01:28:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-11-21 01:28:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-11-21 01:28:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-11-21 01:28:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 01:28:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 01:28:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_access [2021-11-21 01:28:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_access [2021-11-21 01:28:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:28:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:28:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:28:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:28:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure check_fw_section [2021-11-21 01:28:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure check_fw_section [2021-11-21 01:28:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_settings [2021-11-21 01:28:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_settings [2021-11-21 01:28:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-21 01:28:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-21 01:28:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_run_loopback [2021-11-21 01:28:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_run_loopback [2021-11-21 01:28:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-21 01:28:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-21 01:28:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_disable [2021-11-21 01:28:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_disable [2021-11-21 01:28:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:28:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:28:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-21 01:28:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-21 01:28:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-21 01:28:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-21 01:28:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_write_dword [2021-11-21 01:28:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_write_dword [2021-11-21 01:28:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:28:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:28:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_task [2021-11-21 01:28:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_task [2021-11-21 01:28:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:28:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:28:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:28:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:28:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_link [2021-11-21 01:28:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_link [2021-11-21 01:28:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:28:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:28:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-21 01:28:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-21 01:28:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_int [2021-11-21 01:28:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_int [2021-11-21 01:28:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:28:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:28:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 01:28:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-21 01:28:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-21 01:28:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 01:28:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 01:28:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 01:28:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 01:28:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-21 01:28:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-21 01:28:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-21 01:28:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-21 01:28:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_nvram_access [2021-11-21 01:28:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_nvram_access [2021-11-21 01:28:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_mem [2021-11-21 01:28:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_mem [2021-11-21 01:28:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-21 01:28:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-21 01:28:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:28:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:28:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:28:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:28:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:28:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:28:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_nvram_lock [2021-11-21 01:28:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_nvram_lock [2021-11-21 01:28:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-21 01:28:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-21 01:28:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-21 01:28:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-21 01:28:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_work [2021-11-21 01:28:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_work [2021-11-21 01:28:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_fast_work [2021-11-21 01:28:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_fast_work [2021-11-21 01:28:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 01:28:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 01:28:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_avail [2021-11-21 01:28:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_avail [2021-11-21 01:28:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_link [2021-11-21 01:28:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_link [2021-11-21 01:28:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-21 01:28:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-21 01:28:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:28:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:28:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:28:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_report_link [2021-11-21 01:28:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_report_link [2021-11-21 01:28:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_phy [2021-11-21 01:28:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_phy [2021-11-21 01:28:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_phy [2021-11-21 01:28:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_phy [2021-11-21 01:28:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 01:28:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 01:28:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_rx_cons [2021-11-21 01:28:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_rx_cons [2021-11-21 01:28:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:28:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:28:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nvram [2021-11-21 01:28:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nvram [2021-11-21 01:28:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:28:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_ring_size [2021-11-21 01:28:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_ring_size [2021-11-21 01:28:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_power_state [2021-11-21 01:28:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_power_state [2021-11-21 01:28:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure load_cpu_fw [2021-11-21 01:28:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure load_cpu_fw [2021-11-21 01:28:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-21 01:28:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-21 01:28:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_remote_link [2021-11-21 01:28:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_remote_link [2021-11-21 01:28:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_write_phy [2021-11-21 01:28:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_write_phy [2021-11-21 01:28:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-21 01:28:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-21 01:28:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:28:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_tx_cons [2021-11-21 01:28:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_tx_cons [2021-11-21 01:28:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_info_field_size [2021-11-21 01:28:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_info_field_size [2021-11-21 01:28:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_fw_sync [2021-11-21 01:28:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_fw_sync [2021-11-21 01:28:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_wr [2021-11-21 01:28:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_wr [2021-11-21 01:28:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 01:28:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 01:28:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-21 01:28:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-21 01:28:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_5706s_force_link_dn [2021-11-21 01:28:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_5706s_force_link_dn [2021-11-21 01:28:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 01:28:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 01:28:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_link [2021-11-21 01:28:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_link [2021-11-21 01:28:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:28:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:28:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_phy_get_pause_adv [2021-11-21 01:28:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_phy_get_pause_adv [2021-11-21 01:28:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_remote_phy_event [2021-11-21 01:28:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_remote_phy_event [2021-11-21 01:28:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-21 01:28:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-21 01:28:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read [2021-11-21 01:28:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read [2021-11-21 01:28:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_stats64 [2021-11-21 01:28:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_stats64 [2021-11-21 01:28:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_mac_addr [2021-11-21 01:28:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_mac_addr [2021-11-21 01:28:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_fw_cap [2021-11-21 01:28:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_fw_cap [2021-11-21 01:28:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_rd_ind [2021-11-21 01:28:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_rd_ind [2021-11-21 01:28:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-21 01:28:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-21 01:28:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_write [2021-11-21 01:28:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_write [2021-11-21 01:28:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 01:28:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 01:28:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:28:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:28:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:28:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:28:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-21 01:28:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-21 01:28:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_cnic_irq_info [2021-11-21 01:28:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_cnic_irq_info [2021-11-21 01:28:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:28:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:28:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_suspend [2021-11-21 01:28:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_suspend [2021-11-21 01:28:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_forced_2g5 [2021-11-21 01:28:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_forced_2g5 [2021-11-21 01:28:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_mtu [2021-11-21 01:28:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_mtu [2021-11-21 01:28:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cnic_lock_of_bnx2 [2021-11-21 01:28:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cnic_lock_of_bnx2 [2021-11-21 01:28:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cnic_lock_of_bnx2 [2021-11-21 01:28:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cnic_lock_of_bnx2 [2021-11-21 01:28:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:28:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:28:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_stop [2021-11-21 01:28:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_stop [2021-11-21 01:28:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:28:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_ringparam [2021-11-21 01:28:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_ringparam [2021-11-21 01:28:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:28:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:28:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_find_max_ring [2021-11-21 01:28:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_find_max_ring [2021-11-21 01:28:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_coalesce [2021-11-21 01:28:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_coalesce [2021-11-21 01:28:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_send_heart_beat [2021-11-21 01:28:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_send_heart_beat [2021-11-21 01:28:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_io_slot_reset [2021-11-21 01:28:20,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_io_slot_reset [2021-11-21 01:28:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_page [2021-11-21 01:28:20,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_page [2021-11-21 01:28:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-21 01:28:20,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-21 01:28:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 01:28:20,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 01:28:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:28:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:28:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-21 01:28:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-21 01:28:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_firmware [2021-11-21 01:28:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_firmware [2021-11-21 01:28:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 01:28:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 01:28:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-21 01:28:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-21 01:28:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shutdown_chip [2021-11-21 01:28:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shutdown_chip [2021-11-21 01:28:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_mem [2021-11-21 01:28:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_mem [2021-11-21 01:28:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:28:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:28:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_coalesce [2021-11-21 01:28:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_coalesce [2021-11-21 01:28:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-21 01:28:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-21 01:28:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-21 01:28:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-21 01:28:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:28:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:28:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:28:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:28:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:28:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:28:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-21 01:28:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-21 01:28:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:28:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:28:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:28:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_irq [2021-11-21 01:28:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_irq [2021-11-21 01:28:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure poll_bnx2 [2021-11-21 01:28:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_bnx2 [2021-11-21 01:28:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-21 01:28:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-21 01:28:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_features [2021-11-21 01:28:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_features [2021-11-21 01:28:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_ring_size [2021-11-21 01:28:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_ring_size [2021-11-21 01:28:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_dump_mcp_state [2021-11-21 01:28:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_dump_mcp_state [2021-11-21 01:28:22,359 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:28:22,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:28:23,019 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:31:00,326 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:31:11,220 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:31:11,220 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:31:11,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:31:11 BoogieIcfgContainer [2021-11-21 01:31:11,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:31:11,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:31:11,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:31:11,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:31:11,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:28:10" (1/3) ... [2021-11-21 01:31:11,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6cc2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:31:11, skipping insertion in model container [2021-11-21 01:31:11,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:28:19" (2/3) ... [2021-11-21 01:31:11,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6cc2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:31:11, skipping insertion in model container [2021-11-21 01:31:11,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:31:11" (3/3) ... [2021-11-21 01:31:11,242 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-21 01:31:11,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:31:11,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:31:11,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:31:11,351 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:31:11,351 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:31:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 4243 states, 2591 states have (on average 1.3068313392512543) internal successors, (3386), 2664 states have internal predecessors, (3386), 1421 states have call successors, (1421), 230 states have call predecessors, (1421), 229 states have return successors, (1413), 1410 states have call predecessors, (1413), 1413 states have call successors, (1413) [2021-11-21 01:31:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-21 01:31:11,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:11,496 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:31:11,497 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2103697089, now seen corresponding path program 1 times [2021-11-21 01:31:11,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:11,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429953715] [2021-11-21 01:31:11,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:11,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-21 01:31:13,038 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:13,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429953715] [2021-11-21 01:31:13,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429953715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:13,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:13,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:31:13,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937178943] [2021-11-21 01:31:13,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:13,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:31:13,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:31:13,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:31:13,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:31:13,088 INFO L87 Difference]: Start difference. First operand has 4243 states, 2591 states have (on average 1.3068313392512543) internal successors, (3386), 2664 states have internal predecessors, (3386), 1421 states have call successors, (1421), 230 states have call predecessors, (1421), 229 states have return successors, (1413), 1410 states have call predecessors, (1413), 1413 states have call successors, (1413) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-21 01:31:14,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:15,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:18,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:20,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:26,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:28,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:31,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:35,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:37,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:40,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:42,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:47,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:49,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:51,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:52,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:52,837 INFO L93 Difference]: Finished difference Result 12401 states and 18287 transitions. [2021-11-21 01:31:52,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:31:52,841 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), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 259 [2021-11-21 01:31:52,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:52,960 INFO L225 Difference]: With dead ends: 12401 [2021-11-21 01:31:52,961 INFO L226 Difference]: Without dead ends: 8174 [2021-11-21 01:31:53,012 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:31:53,015 INFO L933 BasicCegarLoop]: 7810 mSDtfsCounter, 5779 mSDsluCounter, 6190 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5791 SdHoareTripleChecker+Valid, 13448 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:31:53,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5791 Valid, 13448 Invalid, 1217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1205 Invalid, 9 Unknown, 0 Unchecked, 39.0s Time] [2021-11-21 01:31:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8174 states. [2021-11-21 01:31:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8174 to 8167. [2021-11-21 01:31:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8167 states, 5001 states have (on average 1.302739452109578) internal successors, (6515), 5121 states have internal predecessors, (6515), 2717 states have call successors, (2717), 451 states have call predecessors, (2717), 448 states have return successors, (2718), 2702 states have call predecessors, (2718), 2711 states have call successors, (2718) [2021-11-21 01:31:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8167 states to 8167 states and 11950 transitions. [2021-11-21 01:31:54,035 INFO L78 Accepts]: Start accepts. Automaton has 8167 states and 11950 transitions. Word has length 259 [2021-11-21 01:31:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:31:54,041 INFO L470 AbstractCegarLoop]: Abstraction has 8167 states and 11950 transitions. [2021-11-21 01:31:54,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-21 01:31:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8167 states and 11950 transitions. [2021-11-21 01:31:54,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-21 01:31:54,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:54,055 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:31:54,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:31:54,056 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:54,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2128194911, now seen corresponding path program 1 times [2021-11-21 01:31:54,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:54,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412635777] [2021-11-21 01:31:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:54,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-21 01:31:55,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:55,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412635777] [2021-11-21 01:31:55,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412635777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:55,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:55,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:31:55,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679679068] [2021-11-21 01:31:55,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:55,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:31:55,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:31:55,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:31:55,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:31:55,021 INFO L87 Difference]: Start difference. First operand 8167 states and 11950 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:31:58,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:00,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:07,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:09,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:15,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:19,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:21,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:24,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:28,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:30,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:32,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:33,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:32:33,622 INFO L93 Difference]: Finished difference Result 24018 states and 35393 transitions. [2021-11-21 01:32:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:32:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 280 [2021-11-21 01:32:33,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:32:33,798 INFO L225 Difference]: With dead ends: 24018 [2021-11-21 01:32:33,798 INFO L226 Difference]: Without dead ends: 15900 [2021-11-21 01:32:33,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:32:33,889 INFO L933 BasicCegarLoop]: 7127 mSDtfsCounter, 5736 mSDsluCounter, 6072 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 12651 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:32:33,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5744 Valid, 12651 Invalid, 1150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1136 Invalid, 9 Unknown, 0 Unchecked, 37.9s Time] [2021-11-21 01:32:33,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15900 states. [2021-11-21 01:32:35,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15900 to 15886. [2021-11-21 01:32:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15886 states, 9741 states have (on average 1.302638332820039) internal successors, (12689), 9961 states have internal predecessors, (12689), 5275 states have call successors, (5275), 880 states have call predecessors, (5275), 869 states have return successors, (5368), 5246 states have call predecessors, (5368), 5267 states have call successors, (5368) [2021-11-21 01:32:35,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15886 states to 15886 states and 23332 transitions. [2021-11-21 01:32:35,319 INFO L78 Accepts]: Start accepts. Automaton has 15886 states and 23332 transitions. Word has length 280 [2021-11-21 01:32:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:32:35,321 INFO L470 AbstractCegarLoop]: Abstraction has 15886 states and 23332 transitions. [2021-11-21 01:32:35,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:32:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 15886 states and 23332 transitions. [2021-11-21 01:32:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-21 01:32:35,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:32:35,332 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:32:35,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:32:35,333 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:32:35,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:32:35,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1422943560, now seen corresponding path program 1 times [2021-11-21 01:32:35,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:32:35,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692451642] [2021-11-21 01:32:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:35,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:32:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:32:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-21 01:32:36,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:32:36,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692451642] [2021-11-21 01:32:36,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692451642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:32:36,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:32:36,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:32:36,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531337672] [2021-11-21 01:32:36,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:32:36,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:32:36,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:32:36,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:32:36,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:32:36,030 INFO L87 Difference]: Start difference. First operand 15886 states and 23332 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:32:38,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:40,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:42,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:50,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:52,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:55,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:58,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:02,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:04,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:07,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:10,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:11,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:14,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:15,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:33:15,464 INFO L93 Difference]: Finished difference Result 31532 states and 46313 transitions. [2021-11-21 01:33:15,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:33:15,465 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 275 [2021-11-21 01:33:15,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:33:15,706 INFO L225 Difference]: With dead ends: 31532 [2021-11-21 01:33:15,706 INFO L226 Difference]: Without dead ends: 31529 [2021-11-21 01:33:15,729 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:33:15,731 INFO L933 BasicCegarLoop]: 6997 mSDtfsCounter, 5830 mSDsluCounter, 6094 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5840 SdHoareTripleChecker+Valid, 12538 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:33:15,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5840 Valid, 12538 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1126 Invalid, 10 Unknown, 0 Unchecked, 38.6s Time] [2021-11-21 01:33:15,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31529 states. [2021-11-21 01:33:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31529 to 31514. [2021-11-21 01:33:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31514 states, 19329 states have (on average 1.303171400486316) internal successors, (25189), 19766 states have internal predecessors, (25189), 10453 states have call successors, (10453), 1752 states have call predecessors, (10453), 1731 states have return successors, (10654), 10398 states have call predecessors, (10654), 10445 states have call successors, (10654) [2021-11-21 01:33:17,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31514 states to 31514 states and 46296 transitions. [2021-11-21 01:33:17,820 INFO L78 Accepts]: Start accepts. Automaton has 31514 states and 46296 transitions. Word has length 275 [2021-11-21 01:33:17,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:33:17,821 INFO L470 AbstractCegarLoop]: Abstraction has 31514 states and 46296 transitions. [2021-11-21 01:33:17,822 INFO L471 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:33:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 31514 states and 46296 transitions. [2021-11-21 01:33:17,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-21 01:33:17,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:33:17,832 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:33:17,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:33:17,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:33:17,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:33:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1159334285, now seen corresponding path program 1 times [2021-11-21 01:33:17,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:33:17,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540629003] [2021-11-21 01:33:17,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:33:17,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:33:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:33:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-21 01:33:18,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:33:18,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540629003] [2021-11-21 01:33:18,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540629003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:33:18,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:33:18,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:33:18,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524699367] [2021-11-21 01:33:18,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:33:18,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:33:18,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:33:18,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:33:18,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:33:18,749 INFO L87 Difference]: Start difference. First operand 31514 states and 46296 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:33:22,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:24,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:29,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:31,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:33,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:39,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:41,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:44,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:46,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:48,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:52,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:55,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:33:57,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:00,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:34:01,792 INFO L93 Difference]: Finished difference Result 36450 states and 53244 transitions. [2021-11-21 01:34:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:34:01,793 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 276 [2021-11-21 01:34:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:34:02,097 INFO L225 Difference]: With dead ends: 36450 [2021-11-21 01:34:02,098 INFO L226 Difference]: Without dead ends: 36447 [2021-11-21 01:34:02,129 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:34:02,132 INFO L933 BasicCegarLoop]: 7938 mSDtfsCounter, 5816 mSDsluCounter, 6098 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5823 SdHoareTripleChecker+Valid, 13482 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:34:02,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5823 Valid, 13482 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1220 Invalid, 7 Unknown, 0 Unchecked, 42.1s Time] [2021-11-21 01:34:02,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36447 states. [2021-11-21 01:34:04,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36447 to 36432. [2021-11-21 01:34:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36432 states, 22296 states have (on average 1.2972282023681379) internal successors, (28923), 22818 states have internal predecessors, (28923), 12042 states have call successors, (12042), 2109 states have call predecessors, (12042), 2093 states have return successors, (12262), 11984 states have call predecessors, (12262), 12034 states have call successors, (12262) [2021-11-21 01:34:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36432 states to 36432 states and 53227 transitions. [2021-11-21 01:34:04,584 INFO L78 Accepts]: Start accepts. Automaton has 36432 states and 53227 transitions. Word has length 276 [2021-11-21 01:34:04,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:34:04,585 INFO L470 AbstractCegarLoop]: Abstraction has 36432 states and 53227 transitions. [2021-11-21 01:34:04,585 INFO L471 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:34:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 36432 states and 53227 transitions. [2021-11-21 01:34:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-21 01:34:04,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:34:04,596 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:34:04,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:34:04,597 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:34:04,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:34:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1577386219, now seen corresponding path program 1 times [2021-11-21 01:34:04,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:34:04,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377580628] [2021-11-21 01:34:04,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:34:04,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:34:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:34:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-21 01:34:05,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:34:05,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377580628] [2021-11-21 01:34:05,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377580628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:34:05,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:34:05,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:34:05,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697133065] [2021-11-21 01:34:05,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:34:05,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:34:05,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:34:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:34:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:34:05,401 INFO L87 Difference]: Start difference. First operand 36432 states and 53227 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:34:07,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:10,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:12,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:18,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:21,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:23,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:28,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:31,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:34,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:36,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:41,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:44,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:46,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:34:47,461 INFO L93 Difference]: Finished difference Result 37151 states and 54164 transitions. [2021-11-21 01:34:47,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:34:47,462 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 277 [2021-11-21 01:34:47,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:34:47,681 INFO L225 Difference]: With dead ends: 37151 [2021-11-21 01:34:47,681 INFO L226 Difference]: Without dead ends: 37143 [2021-11-21 01:34:47,707 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:34:47,708 INFO L933 BasicCegarLoop]: 7998 mSDtfsCounter, 5802 mSDsluCounter, 6099 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5815 SdHoareTripleChecker+Valid, 13545 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:34:47,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5815 Valid, 13545 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1229 Invalid, 11 Unknown, 0 Unchecked, 41.1s Time] [2021-11-21 01:34:47,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37143 states. [2021-11-21 01:34:49,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37143 to 37120. [2021-11-21 01:34:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37120 states, 22692 states have (on average 1.2953904459721488) internal successors, (29395), 23234 states have internal predecessors, (29395), 12258 states have call successors, (12258), 2185 states have call predecessors, (12258), 2169 states have return successors, (12478), 12196 states have call predecessors, (12478), 12250 states have call successors, (12478) [2021-11-21 01:34:49,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37120 states to 37120 states and 54131 transitions. [2021-11-21 01:34:49,969 INFO L78 Accepts]: Start accepts. Automaton has 37120 states and 54131 transitions. Word has length 277 [2021-11-21 01:34:49,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:34:49,970 INFO L470 AbstractCegarLoop]: Abstraction has 37120 states and 54131 transitions. [2021-11-21 01:34:49,971 INFO L471 AbstractCegarLoop]: INTERPOLANT 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:34:49,971 INFO L276 IsEmpty]: Start isEmpty. Operand 37120 states and 54131 transitions. [2021-11-21 01:34:49,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-21 01:34:49,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:34:49,981 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:34:49,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:34:49,981 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:34:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:34:49,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1139945895, now seen corresponding path program 1 times [2021-11-21 01:34:49,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:34:49,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567645341] [2021-11-21 01:34:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:34:49,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:34:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:34:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-21 01:34:50,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:34:50,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567645341] [2021-11-21 01:34:50,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567645341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:34:50,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:34:50,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:34:50,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314490455] [2021-11-21 01:34:50,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:34:50,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:34:50,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:34:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:34:50,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:34:50,459 INFO L87 Difference]: Start difference. First operand 37120 states and 54131 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:34:52,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:55,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:34:57,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:00,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:03,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:05,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:07,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:11,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:14,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:18,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:21,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:23,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:26,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:28,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:35:30,219 INFO L93 Difference]: Finished difference Result 106665 states and 155328 transitions. [2021-11-21 01:35:30,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:35:30,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 287 [2021-11-21 01:35:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:35:30,788 INFO L225 Difference]: With dead ends: 106665 [2021-11-21 01:35:30,788 INFO L226 Difference]: Without dead ends: 69594 [2021-11-21 01:35:31,003 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:35:31,004 INFO L933 BasicCegarLoop]: 6977 mSDtfsCounter, 5224 mSDsluCounter, 6094 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 12531 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:35:31,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5237 Valid, 12531 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 11 Unknown, 0 Unchecked, 37.8s Time] [2021-11-21 01:35:31,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69594 states. [2021-11-21 01:35:33,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69594 to 69533. [2021-11-21 01:35:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69533 states, 42374 states have (on average 1.2902723368103082) internal successors, (54674), 43418 states have internal predecessors, (54674), 23039 states have call successors, (23039), 4151 states have call predecessors, (23039), 4119 states have return successors, (23484), 22917 states have call predecessors, (23484), 23031 states have call successors, (23484) [2021-11-21 01:35:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69533 states to 69533 states and 101197 transitions. [2021-11-21 01:35:34,588 INFO L78 Accepts]: Start accepts. Automaton has 69533 states and 101197 transitions. Word has length 287 [2021-11-21 01:35:34,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:35:34,589 INFO L470 AbstractCegarLoop]: Abstraction has 69533 states and 101197 transitions. [2021-11-21 01:35:34,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:35:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 69533 states and 101197 transitions. [2021-11-21 01:35:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-21 01:35:34,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:34,599 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:35:34,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:35:34,600 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:34,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:34,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1579006083, now seen corresponding path program 1 times [2021-11-21 01:35:34,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:35:34,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640151598] [2021-11-21 01:35:34,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:34,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:35:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-21 01:35:35,376 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:35:35,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640151598] [2021-11-21 01:35:35,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640151598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:35:35,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:35:35,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:35:35,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118431377] [2021-11-21 01:35:35,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:35:35,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:35:35,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:35:35,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:35:35,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:35:35,378 INFO L87 Difference]: Start difference. First operand 69533 states and 101197 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-21 01:35:37,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:39,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:43,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:46,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:49,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:53,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:55,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:58,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:00,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:02,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:04,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:11,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:13,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:15,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:18,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:20,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:22,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:22,992 INFO L93 Difference]: Finished difference Result 136554 states and 196656 transitions. [2021-11-21 01:36:22,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:36:22,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 298 [2021-11-21 01:36:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:23,486 INFO L225 Difference]: With dead ends: 136554 [2021-11-21 01:36:23,486 INFO L226 Difference]: Without dead ends: 91412 [2021-11-21 01:36:23,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:23,817 INFO L933 BasicCegarLoop]: 8348 mSDtfsCounter, 3434 mSDsluCounter, 6039 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3439 SdHoareTripleChecker+Valid, 13840 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:23,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3439 Valid, 13840 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1410 Invalid, 10 Unknown, 0 Unchecked, 44.8s Time] [2021-11-21 01:36:23,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91412 states. [2021-11-21 01:36:27,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91412 to 91353. [2021-11-21 01:36:27,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91353 states, 55500 states have (on average 1.281837837837838) internal successors, (71142), 56938 states have internal predecessors, (71142), 30319 states have call successors, (30319), 5589 states have call predecessors, (30319), 5533 states have return successors, (30802), 30120 states have call predecessors, (30802), 30308 states have call successors, (30802) [2021-11-21 01:36:28,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91353 states to 91353 states and 132263 transitions. [2021-11-21 01:36:28,628 INFO L78 Accepts]: Start accepts. Automaton has 91353 states and 132263 transitions. Word has length 298 [2021-11-21 01:36:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:28,629 INFO L470 AbstractCegarLoop]: Abstraction has 91353 states and 132263 transitions. [2021-11-21 01:36:28,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-21 01:36:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 91353 states and 132263 transitions. [2021-11-21 01:36:28,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-21 01:36:28,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:28,645 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:28,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:36:28,646 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:28,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash -562541731, now seen corresponding path program 1 times [2021-11-21 01:36:28,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:28,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489606201] [2021-11-21 01:36:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:28,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2021-11-21 01:36:29,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:29,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489606201] [2021-11-21 01:36:29,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489606201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:36:29,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:36:29,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:36:29,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867076285] [2021-11-21 01:36:29,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:29,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:36:29,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:29,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:36:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:29,569 INFO L87 Difference]: Start difference. First operand 91353 states and 132263 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:36:31,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:35,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:37,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:38,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:46,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:51,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:56,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:58,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:00,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:03,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:05,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:11,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:37:11,509 INFO L93 Difference]: Finished difference Result 222348 states and 322060 transitions. [2021-11-21 01:37:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:37:11,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 325 [2021-11-21 01:37:11,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:37:12,230 INFO L225 Difference]: With dead ends: 222348 [2021-11-21 01:37:12,230 INFO L226 Difference]: Without dead ends: 131044 [2021-11-21 01:37:12,777 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:37:12,778 INFO L933 BasicCegarLoop]: 7643 mSDtfsCounter, 5773 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5785 SdHoareTripleChecker+Valid, 13259 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:37:12,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5785 Valid, 13259 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1192 Invalid, 9 Unknown, 0 Unchecked, 37.3s Time] [2021-11-21 01:37:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131044 states. [2021-11-21 01:37:18,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131044 to 130963. [2021-11-21 01:37:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130963 states, 79618 states have (on average 1.283315330704112) internal successors, (102175), 81700 states have internal predecessors, (102175), 43447 states have call successors, (43447), 7991 states have call predecessors, (43447), 7897 states have return successors, (44150), 43124 states have call predecessors, (44150), 43436 states have call successors, (44150) [2021-11-21 01:37:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130963 states to 130963 states and 189772 transitions. [2021-11-21 01:37:19,911 INFO L78 Accepts]: Start accepts. Automaton has 130963 states and 189772 transitions. Word has length 325 [2021-11-21 01:37:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:37:19,912 INFO L470 AbstractCegarLoop]: Abstraction has 130963 states and 189772 transitions. [2021-11-21 01:37:19,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:37:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 130963 states and 189772 transitions. [2021-11-21 01:37:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-21 01:37:19,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:37:19,926 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:37:19,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:37:19,927 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:37:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:37:19,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2034323700, now seen corresponding path program 1 times [2021-11-21 01:37:19,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:37:19,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264427942] [2021-11-21 01:37:19,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:37:19,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:37:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:37:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2021-11-21 01:37:20,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:37:20,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264427942] [2021-11-21 01:37:20,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264427942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:37:20,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:37:20,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:37:20,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006065209] [2021-11-21 01:37:20,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:37:20,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:37:20,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:37:20,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:37:20,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:37:20,593 INFO L87 Difference]: Start difference. First operand 130963 states and 189772 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:37:24,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:27,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:31,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:37,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:39,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:42,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:47,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:49,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:52,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:54,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:56,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:02,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:38:02,270 INFO L93 Difference]: Finished difference Result 261955 states and 379545 transitions. [2021-11-21 01:38:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:38:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 324 [2021-11-21 01:38:02,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:38:03,276 INFO L225 Difference]: With dead ends: 261955 [2021-11-21 01:38:03,276 INFO L226 Difference]: Without dead ends: 131041 [2021-11-21 01:38:03,762 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:38:03,763 INFO L933 BasicCegarLoop]: 7636 mSDtfsCounter, 5834 mSDsluCounter, 6097 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 13185 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:38:03,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5849 Valid, 13185 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1181 Invalid, 11 Unknown, 0 Unchecked, 36.6s Time] [2021-11-21 01:38:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131041 states. [2021-11-21 01:38:10,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131041 to 130960. [2021-11-21 01:38:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130960 states, 79617 states have (on average 1.2832309682605474) internal successors, (102167), 81699 states have internal predecessors, (102167), 43441 states have call successors, (43441), 7995 states have call predecessors, (43441), 7901 states have return successors, (44140), 43118 states have call predecessors, (44140), 43430 states have call successors, (44140) [2021-11-21 01:38:11,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130960 states to 130960 states and 189748 transitions. [2021-11-21 01:38:11,394 INFO L78 Accepts]: Start accepts. Automaton has 130960 states and 189748 transitions. Word has length 324 [2021-11-21 01:38:11,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:38:11,394 INFO L470 AbstractCegarLoop]: Abstraction has 130960 states and 189748 transitions. [2021-11-21 01:38:11,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:38:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 130960 states and 189748 transitions. [2021-11-21 01:38:11,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-21 01:38:11,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:38:11,408 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:38:11,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:38:11,408 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:38:11,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:38:11,409 INFO L85 PathProgramCache]: Analyzing trace with hash 778231750, now seen corresponding path program 1 times [2021-11-21 01:38:11,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:38:11,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919788337] [2021-11-21 01:38:11,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:38:11,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:38:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:38:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2021-11-21 01:38:11,930 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:38:11,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919788337] [2021-11-21 01:38:11,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919788337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:38:11,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:38:11,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:38:11,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363794526] [2021-11-21 01:38:11,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:38:11,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:38:11,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:38:11,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:38:11,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:38:11,932 INFO L87 Difference]: Start difference. First operand 130960 states and 189748 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:38:13,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:16,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:18,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:21,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:26,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []