./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.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_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/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_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/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_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/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 c0ea6f57e56343c309beb482be7e91bdb158dd17f1a1c3ab8bad32fab13935ec --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:25:03,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:25:03,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:25:03,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:25:03,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:25:03,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:25:03,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:25:03,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:25:03,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:25:03,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:25:03,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:25:03,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:25:03,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:25:03,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:25:03,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:25:03,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:25:04,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:25:04,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:25:04,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:25:04,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:25:04,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:25:04,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:25:04,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:25:04,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:25:04,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:25:04,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:25:04,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:25:04,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:25:04,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:25:04,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:25:04,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:25:04,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:25:04,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:25:04,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:25:04,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:25:04,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:25:04,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:25:04,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:25:04,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:25:04,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:25:04,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:25:04,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:25:04,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:25:04,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:25:04,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:25:04,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:25:04,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:25:04,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:25:04,098 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:25:04,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:25:04,098 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:25:04,098 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:25:04,100 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:25:04,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:25:04,100 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:25:04,100 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:25:04,101 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:25:04,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:25:04,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:25:04,101 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:25:04,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:25:04,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:25:04,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:25:04,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:25:04,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:25:04,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:25:04,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:25:04,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:25:04,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:25:04,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:25:04,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:25:04,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:25:04,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:25:04,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:25:04,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:25:04,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:25:04,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:25:04,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:25:04,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:25:04,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:25:04,109 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_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0ea6f57e56343c309beb482be7e91bdb158dd17f1a1c3ab8bad32fab13935ec [2021-11-21 01:25:04,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:25:04,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:25:04,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:25:04,409 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:25:04,410 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:25:04,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2021-11-21 01:25:04,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/data/b988a9f42/240ac94a796843de860d15cea17e28fa/FLAG1542dbfc4 [2021-11-21 01:25:05,741 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:25:05,741 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2021-11-21 01:25:05,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/data/b988a9f42/240ac94a796843de860d15cea17e28fa/FLAG1542dbfc4 [2021-11-21 01:25:05,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/data/b988a9f42/240ac94a796843de860d15cea17e28fa [2021-11-21 01:25:05,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:25:05,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:25:05,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:25:05,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:25:05,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:25:05,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:25:05" (1/1) ... [2021-11-21 01:25:05,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c04ce9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:05, skipping insertion in model container [2021-11-21 01:25:05,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:25:05" (1/1) ... [2021-11-21 01:25:05,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:25:06,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:25:11,413 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_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i[526761,526774] [2021-11-21 01:25:11,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:25:11,727 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:25:12,453 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_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i[526761,526774] [2021-11-21 01:25:12,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:25:12,905 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:25:12,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12 WrapperNode [2021-11-21 01:25:12,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:25:12,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:25:12,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:25:12,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:25:12,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:13,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:13,753 INFO L137 Inliner]: procedures = 589, calls = 7081, calls flagged for inlining = 252, calls inlined = 236, statements flattened = 14209 [2021-11-21 01:25:13,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:25:13,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:25:13,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:25:13,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:25:13,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:13,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:13,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:13,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:14,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:14,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:14,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:14,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:25:14,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:25:14,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:25:14,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:25:14,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (1/1) ... [2021-11-21 01:25:14,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:25:14,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:25:14,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:25:14,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:25:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:25:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:25:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 01:25:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 01:25:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-21 01:25:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 01:25:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 01:25:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-21 01:25:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-21 01:25:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 01:25:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 01:25:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-21 01:25:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-21 01:25:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-21 01:25:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-21 01:25:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:25:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:25:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-21 01:25:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-21 01:25:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-21 01:25:14,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-21 01:25:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-21 01:25:14,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-21 01:25:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_qlge_err_handler_release_3 [2021-11-21 01:25:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_qlge_err_handler_release_3 [2021-11-21 01:25:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-21 01:25:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-21 01:25:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:25:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:25:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-21 01:25:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-21 01:25:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-21 01:25:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-21 01:25:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 01:25:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 01:25:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 01:25:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 01:25:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-21 01:25:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-21 01:25:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:25:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:25:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-21 01:25:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-21 01:25:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:25:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:25:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-21 01:25:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-21 01:25:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2021-11-21 01:25:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2021-11-21 01:25:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:25:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:25:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-21 01:25:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-21 01:25:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-21 01:25:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-21 01:25:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-21 01:25:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-21 01:25:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-21 01:25:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-21 01:25:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:25:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:25:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-21 01:25:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-21 01:25:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:25:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:25:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:25:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:25:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-21 01:25:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-21 01:25:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:25:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:25:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-21 01:25:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-21 01:25:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-21 01:25:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-21 01:25:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 01:25:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 01:25:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 01:25:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 01:25:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:25:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 01:25:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 01:25:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-21 01:25:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-21 01:25:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-21 01:25:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-21 01:25:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-21 01:25:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-21 01:25:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-21 01:25:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-21 01:25:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-21 01:25:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-21 01:25:14,737 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-21 01:25:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-21 01:25:14,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 01:25:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 01:25:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:25:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:25:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-21 01:25:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-21 01:25:14,739 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-21 01:25:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-21 01:25:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-21 01:25:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-21 01:25:14,740 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:25:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:25:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-21 01:25:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-21 01:25:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:25:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:25:14,742 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-21 01:25:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-21 01:25:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 01:25:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 01:25:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:25:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-21 01:25:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-21 01:25:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 01:25:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 01:25:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:25:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:25:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:25:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:25:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-21 01:25:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-21 01:25:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-21 01:25:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-21 01:25:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-21 01:25:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-21 01:25:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:25:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-21 01:25:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-21 01:25:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:25:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:25:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:25:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:25:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:25:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 01:25:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 01:25:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-21 01:25:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-21 01:25:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-21 01:25:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-21 01:25:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-21 01:25:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-21 01:25:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-21 01:25:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-21 01:25:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 01:25:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 01:25:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-21 01:25:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-21 01:25:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-21 01:25:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-21 01:25:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 01:25:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 01:25:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:25:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:25:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-21 01:25:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-21 01:25:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-21 01:25:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-21 01:25:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-21 01:25:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-21 01:25:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-21 01:25:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-21 01:25:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:25:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-21 01:25:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-21 01:25:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-21 01:25:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-21 01:25:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-21 01:25:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-21 01:25:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:25:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 01:25:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 01:25:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2021-11-21 01:25:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2021-11-21 01:25:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:25:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:25:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:25:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-21 01:25:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-21 01:25:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-21 01:25:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-21 01:25:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:25:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:25:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2021-11-21 01:25:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2021-11-21 01:25:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:25:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:25:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-21 01:25:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-21 01:25:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:25:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:25:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-21 01:25:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-21 01:25:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 01:25:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 01:25:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-21 01:25:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-21 01:25:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 01:25:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 01:25:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-21 01:25:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-21 01:25:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:25:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:25:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 01:25:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 01:25:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 01:25:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 01:25:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-21 01:25:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-21 01:25:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-21 01:25:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-21 01:25:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-21 01:25:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-21 01:25:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-21 01:25:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-21 01:25:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:25:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:25:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:25:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:25:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-21 01:25:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-21 01:25:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2021-11-21 01:25:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2021-11-21 01:25:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:25:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:25:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-21 01:25:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-21 01:25:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 01:25:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 01:25:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-21 01:25:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-21 01:25:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-21 01:25:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-21 01:25:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:25:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:25:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-21 01:25:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-21 01:25:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:25:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:25:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-21 01:25:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-21 01:25:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 01:25:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 01:25:14,781 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 01:25:14,781 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 01:25:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-21 01:25:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-21 01:25:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 01:25:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 01:25:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:25:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:25:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-21 01:25:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-21 01:25:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-21 01:25:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-21 01:25:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 01:25:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 01:25:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-21 01:25:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-21 01:25:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-21 01:25:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-21 01:25:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-21 01:25:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-21 01:25:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-21 01:25:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-21 01:25:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-21 01:25:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-21 01:25:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-21 01:25:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-21 01:25:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 01:25:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 01:25:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-21 01:25:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-21 01:25:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 01:25:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 01:25:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 01:25:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 01:25:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-21 01:25:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-21 01:25:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:25:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:25:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:25:14,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:25:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-21 01:25:14,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-21 01:25:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-21 01:25:14,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-21 01:25:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 01:25:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 01:25:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-21 01:25:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-21 01:25:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-21 01:25:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-21 01:25:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-21 01:25:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-21 01:25:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 01:25:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 01:25:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-21 01:25:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-21 01:25:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:25:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:25:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 01:25:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 01:25:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2021-11-21 01:25:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2021-11-21 01:25:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:25:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:25:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:25:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-21 01:25:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-21 01:25:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 01:25:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 01:25:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-21 01:25:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-21 01:25:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:25:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:25:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2021-11-21 01:25:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2021-11-21 01:25:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-21 01:25:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-21 01:25:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:25:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 01:25:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 01:25:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-21 01:25:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-21 01:25:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-21 01:25:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-21 01:25:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 01:25:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 01:25:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 01:25:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 01:25:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:25:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-21 01:25:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-21 01:25:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-21 01:25:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-21 01:25:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 01:25:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 01:25:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-21 01:25:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-21 01:25:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:25:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:25:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 01:25:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 01:25:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-21 01:25:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-21 01:25:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-21 01:25:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-21 01:25:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-21 01:25:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-21 01:25:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 01:25:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 01:25:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:25:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:25:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:25:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:25:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-21 01:25:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-21 01:25:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 01:25:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 01:25:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-21 01:25:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-21 01:25:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 01:25:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 01:25:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:25:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:25:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 01:25:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 01:25:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-21 01:25:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-21 01:25:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:25:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:25:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-21 01:25:14,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-21 01:25:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2021-11-21 01:25:14,804 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2021-11-21 01:25:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:25:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 01:25:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 01:25:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:25:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:25:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2021-11-21 01:25:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2021-11-21 01:25:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2021-11-21 01:25:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2021-11-21 01:25:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-21 01:25:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-21 01:25:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:25:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:25:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 01:25:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 01:25:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-21 01:25:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-21 01:25:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-21 01:25:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-21 01:25:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 01:25:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 01:25:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-21 01:25:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-21 01:25:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-21 01:25:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-21 01:25:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:25:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:25:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 01:25:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 01:25:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-21 01:25:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-21 01:25:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-21 01:25:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-21 01:25:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-21 01:25:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-21 01:25:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 01:25:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 01:25:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 01:25:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 01:25:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-21 01:25:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-21 01:25:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-21 01:25:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-21 01:25:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-21 01:25:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-21 01:25:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-21 01:25:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-21 01:25:14,811 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 01:25:14,811 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 01:25:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-21 01:25:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-21 01:25:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:25:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:25:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-21 01:25:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-21 01:25:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-21 01:25:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-21 01:25:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-21 01:25:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-21 01:25:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-21 01:25:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-21 01:25:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:25:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:25:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:25:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:25:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:25:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-21 01:25:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-21 01:25:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-21 01:25:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-21 01:25:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-21 01:25:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-21 01:25:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-21 01:25:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-21 01:25:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-21 01:25:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-21 01:25:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-21 01:25:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-21 01:25:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-21 01:25:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-21 01:25:16,340 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:25:16,349 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:25:44,172 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:25:49,967 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:25:49,967 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:25:49,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:25:49 BoogieIcfgContainer [2021-11-21 01:25:49,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:25:49,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:25:49,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:25:49,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:25:49,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:25:05" (1/3) ... [2021-11-21 01:25:49,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f13800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:25:49, skipping insertion in model container [2021-11-21 01:25:49,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:12" (2/3) ... [2021-11-21 01:25:49,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f13800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:25:49, skipping insertion in model container [2021-11-21 01:25:49,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:25:49" (3/3) ... [2021-11-21 01:25:49,983 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2021-11-21 01:25:49,989 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:25:49,989 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:25:50,057 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:25:50,064 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 01:25:50,064 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:25:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 3448 states, 2116 states have (on average 1.3421550094517958) internal successors, (2840), 2182 states have internal predecessors, (2840), 1109 states have call successors, (1109), 221 states have call predecessors, (1109), 221 states have return successors, (1109), 1096 states have call predecessors, (1109), 1109 states have call successors, (1109) [2021-11-21 01:25:50,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:25:50,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:25:50,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:25:50,157 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:25:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:25:50,162 INFO L85 PathProgramCache]: Analyzing trace with hash -15958075, now seen corresponding path program 1 times [2021-11-21 01:25:50,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:25:50,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664963800] [2021-11-21 01:25:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:25:50,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:25:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:25:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:25:51,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:25:51,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664963800] [2021-11-21 01:25:51,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664963800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:25:51,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:25:51,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:25:51,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652009604] [2021-11-21 01:25:51,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:25:51,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:25:51,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:25:51,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:25:51,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:25:51,077 INFO L87 Difference]: Start difference. First operand has 3448 states, 2116 states have (on average 1.3421550094517958) internal successors, (2840), 2182 states have internal predecessors, (2840), 1109 states have call successors, (1109), 221 states have call predecessors, (1109), 221 states have return successors, (1109), 1096 states have call predecessors, (1109), 1109 states have call successors, (1109) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:25:56,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:25:58,764 WARN L515 Checker$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 01:26:04,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:06,526 WARN L515 Checker$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 01:26:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:10,481 INFO L93 Difference]: Finished difference Result 10312 states and 15242 transitions. [2021-11-21 01:26:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:26:10,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 01:26:10,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:10,839 INFO L225 Difference]: With dead ends: 10312 [2021-11-21 01:26:10,839 INFO L226 Difference]: Without dead ends: 6845 [2021-11-21 01:26:10,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:26:10,881 INFO L933 BasicCegarLoop]: 5541 mSDtfsCounter, 4996 mSDsluCounter, 5039 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 9962 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:10,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5002 Valid, 9962 Invalid, 1260 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1254 Invalid, 3 Unknown, 0 Unchecked, 18.7s Time] [2021-11-21 01:26:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2021-11-21 01:26:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 6839. [2021-11-21 01:26:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6839 states, 4189 states have (on average 1.3373120076390546) internal successors, (5602), 4314 states have internal predecessors, (5602), 2209 states have call successors, (2209), 441 states have call predecessors, (2209), 440 states have return successors, (2209), 2175 states have call predecessors, (2209), 2203 states have call successors, (2209) [2021-11-21 01:26:11,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6839 states to 6839 states and 10020 transitions. [2021-11-21 01:26:11,507 INFO L78 Accepts]: Start accepts. Automaton has 6839 states and 10020 transitions. Word has length 13 [2021-11-21 01:26:11,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:11,508 INFO L470 AbstractCegarLoop]: Abstraction has 6839 states and 10020 transitions. [2021-11-21 01:26:11,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:11,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6839 states and 10020 transitions. [2021-11-21 01:26:11,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 01:26:11,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:11,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:11,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:26:11,521 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:11,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:11,525 INFO L85 PathProgramCache]: Analyzing trace with hash 4812310, now seen corresponding path program 1 times [2021-11-21 01:26:11,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:11,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226143591] [2021-11-21 01:26:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:11,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:26:12,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:12,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226143591] [2021-11-21 01:26:12,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226143591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:12,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:12,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:26:12,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111728960] [2021-11-21 01:26:12,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:12,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:26:12,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:12,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:26:12,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:26:12,072 INFO L87 Difference]: Start difference. First operand 6839 states and 10020 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:15,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:17,871 WARN L515 Checker$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 01:26:20,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:22,737 WARN L515 Checker$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 01:26:24,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:28,821 INFO L93 Difference]: Finished difference Result 8365 states and 12171 transitions. [2021-11-21 01:26:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:26:28,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-21 01:26:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:28,911 INFO L225 Difference]: With dead ends: 8365 [2021-11-21 01:26:28,912 INFO L226 Difference]: Without dead ends: 8362 [2021-11-21 01:26:28,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:26:28,924 INFO L933 BasicCegarLoop]: 5200 mSDtfsCounter, 4988 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4994 SdHoareTripleChecker+Valid, 7044 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:28,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4994 Valid, 7044 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1023 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2021-11-21 01:26:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8362 states. [2021-11-21 01:26:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8362 to 8357. [2021-11-21 01:26:29,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8357 states, 5131 states have (on average 1.3332683687390372) internal successors, (6841), 5288 states have internal predecessors, (6841), 2658 states have call successors, (2658), 567 states have call predecessors, (2658), 567 states have return successors, (2665), 2617 states have call predecessors, (2665), 2653 states have call successors, (2665) [2021-11-21 01:26:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8357 states to 8357 states and 12164 transitions. [2021-11-21 01:26:29,443 INFO L78 Accepts]: Start accepts. Automaton has 8357 states and 12164 transitions. Word has length 15 [2021-11-21 01:26:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:29,444 INFO L470 AbstractCegarLoop]: Abstraction has 8357 states and 12164 transitions. [2021-11-21 01:26:29,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:29,445 INFO L276 IsEmpty]: Start isEmpty. Operand 8357 states and 12164 transitions. [2021-11-21 01:26:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 01:26:29,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:29,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:29,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:26:29,449 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:29,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash 146630982, now seen corresponding path program 1 times [2021-11-21 01:26:29,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:29,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246374394] [2021-11-21 01:26:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:29,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:26:30,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246374394] [2021-11-21 01:26:30,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246374394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:30,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:30,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:26:30,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354039069] [2021-11-21 01:26:30,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:30,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:26:30,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:26:30,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:26:30,100 INFO L87 Difference]: Start difference. First operand 8357 states and 12164 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:33,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:35,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:39,609 WARN L515 Checker$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 01:26:42,198 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 01:26:46,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:46,126 INFO L93 Difference]: Finished difference Result 8364 states and 12169 transitions. [2021-11-21 01:26:46,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:26:46,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-21 01:26:46,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:46,208 INFO L225 Difference]: With dead ends: 8364 [2021-11-21 01:26:46,208 INFO L226 Difference]: Without dead ends: 8361 [2021-11-21 01:26:46,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:26:46,218 INFO L933 BasicCegarLoop]: 5198 mSDtfsCounter, 4985 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 7042 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:46,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4991 Valid, 7042 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1022 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2021-11-21 01:26:46,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8361 states. [2021-11-21 01:26:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8361 to 8356. [2021-11-21 01:26:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8356 states, 5131 states have (on average 1.3330734749561488) internal successors, (6840), 5287 states have internal predecessors, (6840), 2657 states have call successors, (2657), 567 states have call predecessors, (2657), 567 states have return successors, (2665), 2617 states have call predecessors, (2665), 2653 states have call successors, (2665) [2021-11-21 01:26:46,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8356 states to 8356 states and 12162 transitions. [2021-11-21 01:26:46,802 INFO L78 Accepts]: Start accepts. Automaton has 8356 states and 12162 transitions. Word has length 16 [2021-11-21 01:26:46,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:46,802 INFO L470 AbstractCegarLoop]: Abstraction has 8356 states and 12162 transitions. [2021-11-21 01:26:46,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 8356 states and 12162 transitions. [2021-11-21 01:26:46,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 01:26:46,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:46,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:46,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:26:46,806 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash 248047385, now seen corresponding path program 1 times [2021-11-21 01:26:46,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:46,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683206526] [2021-11-21 01:26:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:46,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:47,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:26:47,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:47,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683206526] [2021-11-21 01:26:47,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683206526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:47,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:47,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:26:47,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503461260] [2021-11-21 01:26:47,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:47,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:26:47,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:47,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:26:47,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:26:47,287 INFO L87 Difference]: Start difference. First operand 8356 states and 12162 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:50,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:53,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:58,180 WARN L515 Checker$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 01:27:02,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:03,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:03,696 INFO L93 Difference]: Finished difference Result 15377 states and 22509 transitions. [2021-11-21 01:27:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:27:03,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-21 01:27:03,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:03,831 INFO L225 Difference]: With dead ends: 15377 [2021-11-21 01:27:03,831 INFO L226 Difference]: Without dead ends: 15373 [2021-11-21 01:27:03,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:27:03,845 INFO L933 BasicCegarLoop]: 5773 mSDtfsCounter, 4800 mSDsluCounter, 4457 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4800 SdHoareTripleChecker+Valid, 9693 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:03,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4800 Valid, 9693 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1260 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2021-11-21 01:27:03,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15373 states. [2021-11-21 01:27:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15373 to 15369. [2021-11-21 01:27:04,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15369 states, 9437 states have (on average 1.335382006993748) internal successors, (12602), 9718 states have internal predecessors, (12602), 4877 states have call successors, (4877), 1072 states have call predecessors, (4877), 1054 states have return successors, (5020), 4772 states have call predecessors, (5020), 4873 states have call successors, (5020) [2021-11-21 01:27:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15369 states to 15369 states and 22499 transitions. [2021-11-21 01:27:05,020 INFO L78 Accepts]: Start accepts. Automaton has 15369 states and 22499 transitions. Word has length 17 [2021-11-21 01:27:05,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:05,020 INFO L470 AbstractCegarLoop]: Abstraction has 15369 states and 22499 transitions. [2021-11-21 01:27:05,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:05,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15369 states and 22499 transitions. [2021-11-21 01:27:05,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:27:05,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:05,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:05,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:27:05,023 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:05,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:05,024 INFO L85 PathProgramCache]: Analyzing trace with hash -903006551, now seen corresponding path program 1 times [2021-11-21 01:27:05,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:05,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899096102] [2021-11-21 01:27:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:05,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:05,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:05,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899096102] [2021-11-21 01:27:05,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899096102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:05,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:05,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:27:05,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579005007] [2021-11-21 01:27:05,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:05,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:27:05,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:05,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:27:05,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:27:05,492 INFO L87 Difference]: Start difference. First operand 15369 states and 22499 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:09,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:27:11,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:15,320 WARN L515 Checker$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 01:27:17,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:19,040 WARN L515 Checker$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 01:27:22,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:22,657 INFO L93 Difference]: Finished difference Result 15376 states and 22504 transitions. [2021-11-21 01:27:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:27:22,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 01:27:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:22,749 INFO L225 Difference]: With dead ends: 15376 [2021-11-21 01:27:22,749 INFO L226 Difference]: Without dead ends: 15368 [2021-11-21 01:27:22,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:27:22,762 INFO L933 BasicCegarLoop]: 5194 mSDtfsCounter, 4981 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4987 SdHoareTripleChecker+Valid, 7038 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:22,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4987 Valid, 7038 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1022 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2021-11-21 01:27:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15368 states. [2021-11-21 01:27:23,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15368 to 15363. [2021-11-21 01:27:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15363 states, 9432 states have (on average 1.3352417302798982) internal successors, (12594), 9712 states have internal predecessors, (12594), 4876 states have call successors, (4876), 1072 states have call predecessors, (4876), 1054 states have return successors, (5020), 4772 states have call predecessors, (5020), 4873 states have call successors, (5020) [2021-11-21 01:27:23,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15363 states to 15363 states and 22490 transitions. [2021-11-21 01:27:23,780 INFO L78 Accepts]: Start accepts. Automaton has 15363 states and 22490 transitions. Word has length 18 [2021-11-21 01:27:23,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:23,780 INFO L470 AbstractCegarLoop]: Abstraction has 15363 states and 22490 transitions. [2021-11-21 01:27:23,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:23,782 INFO L276 IsEmpty]: Start isEmpty. Operand 15363 states and 22490 transitions. [2021-11-21 01:27:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-21 01:27:23,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:23,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:23,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:27:23,799 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:23,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1789794327, now seen corresponding path program 1 times [2021-11-21 01:27:23,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:23,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560143055] [2021-11-21 01:27:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:23,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:24,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:24,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560143055] [2021-11-21 01:27:24,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560143055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:24,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:24,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:27:24,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736379983] [2021-11-21 01:27:24,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:24,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:27:24,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:24,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:27:24,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:27:24,200 INFO L87 Difference]: Start difference. First operand 15363 states and 22490 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:27:28,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:27:30,986 WARN L515 Checker$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 01:27:35,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:37,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:39,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:42,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:44,165 INFO L93 Difference]: Finished difference Result 35966 states and 52709 transitions. [2021-11-21 01:27:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:27:44,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-11-21 01:27:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:44,279 INFO L225 Difference]: With dead ends: 35966 [2021-11-21 01:27:44,279 INFO L226 Difference]: Without dead ends: 20604 [2021-11-21 01:27:44,384 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 01:27:44,386 INFO L933 BasicCegarLoop]: 6279 mSDtfsCounter, 4607 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4611 SdHoareTripleChecker+Valid, 10656 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:44,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4611 Valid, 10656 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1408 Invalid, 3 Unknown, 0 Unchecked, 19.3s Time] [2021-11-21 01:27:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20604 states. [2021-11-21 01:27:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20604 to 20589. [2021-11-21 01:27:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20589 states, 12681 states have (on average 1.3398785584733066) internal successors, (16991), 13058 states have internal predecessors, (16991), 6514 states have call successors, (6514), 1419 states have call predecessors, (6514), 1393 states have return successors, (6693), 6374 states have call predecessors, (6693), 6511 states have call successors, (6693) [2021-11-21 01:27:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20589 states to 20589 states and 30198 transitions. [2021-11-21 01:27:45,859 INFO L78 Accepts]: Start accepts. Automaton has 20589 states and 30198 transitions. Word has length 58 [2021-11-21 01:27:45,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:45,860 INFO L470 AbstractCegarLoop]: Abstraction has 20589 states and 30198 transitions. [2021-11-21 01:27:45,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:27:45,860 INFO L276 IsEmpty]: Start isEmpty. Operand 20589 states and 30198 transitions. [2021-11-21 01:27:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 01:27:45,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:45,876 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-21 01:27:45,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:27:45,877 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:45,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:45,877 INFO L85 PathProgramCache]: Analyzing trace with hash 706907086, now seen corresponding path program 1 times [2021-11-21 01:27:45,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:45,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765216119] [2021-11-21 01:27:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:45,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 01:27:46,282 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:46,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765216119] [2021-11-21 01:27:46,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765216119] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:46,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:46,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:27:46,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582497559] [2021-11-21 01:27:46,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:46,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:27:46,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:27:46,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:27:46,284 INFO L87 Difference]: Start difference. First operand 20589 states and 30198 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:27:49,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:27:52,219 WARN L515 Checker$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 01:27:57,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:58,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:00,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:04,080 WARN L515 Checker$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 01:28:07,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:07,007 INFO L93 Difference]: Finished difference Result 47733 states and 69683 transitions. [2021-11-21 01:28:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:28:07,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2021-11-21 01:28:07,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:07,170 INFO L225 Difference]: With dead ends: 47733 [2021-11-21 01:28:07,170 INFO L226 Difference]: Without dead ends: 27145 [2021-11-21 01:28:07,261 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 01:28:07,262 INFO L933 BasicCegarLoop]: 5384 mSDtfsCounter, 3330 mSDsluCounter, 4966 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 9744 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:07,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3336 Valid, 9744 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1345 Invalid, 4 Unknown, 0 Unchecked, 19.5s Time] [2021-11-21 01:28:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27145 states. [2021-11-21 01:28:08,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27145 to 27132. [2021-11-21 01:28:08,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27132 states, 16757 states have (on average 1.333949991048517) internal successors, (22353), 17249 states have internal predecessors, (22353), 8414 states have call successors, (8414), 1991 states have call predecessors, (8414), 1960 states have return successors, (8701), 8235 states have call predecessors, (8701), 8411 states have call successors, (8701) [2021-11-21 01:28:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27132 states to 27132 states and 39468 transitions. [2021-11-21 01:28:08,948 INFO L78 Accepts]: Start accepts. Automaton has 27132 states and 39468 transitions. Word has length 64 [2021-11-21 01:28:08,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:08,951 INFO L470 AbstractCegarLoop]: Abstraction has 27132 states and 39468 transitions. [2021-11-21 01:28:08,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:28:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 27132 states and 39468 transitions. [2021-11-21 01:28:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-21 01:28:08,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:08,964 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-21 01:28:08,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:28:08,964 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:28:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:08,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1782736721, now seen corresponding path program 1 times [2021-11-21 01:28:08,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:08,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81774886] [2021-11-21 01:28:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:08,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 01:28:09,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:09,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81774886] [2021-11-21 01:28:09,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81774886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:09,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:28:09,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:28:09,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303806535] [2021-11-21 01:28:09,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:09,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:28:09,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:09,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:28:09,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:09,338 INFO L87 Difference]: Start difference. First operand 27132 states and 39468 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:28:12,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:28:15,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:17,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:19,411 WARN L515 Checker$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 01:28:23,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:26,834 WARN L515 Checker$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 01:28:28,732 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 01:28:34,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:34,136 INFO L93 Difference]: Finished difference Result 75000 states and 109238 transitions. [2021-11-21 01:28:34,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:28:34,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2021-11-21 01:28:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:34,383 INFO L225 Difference]: With dead ends: 75000 [2021-11-21 01:28:34,383 INFO L226 Difference]: Without dead ends: 47869 [2021-11-21 01:28:34,510 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 01:28:34,510 INFO L933 BasicCegarLoop]: 7209 mSDtfsCounter, 4977 mSDsluCounter, 5012 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 11601 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:34,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4981 Valid, 11601 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1580 Invalid, 4 Unknown, 0 Unchecked, 23.1s Time] [2021-11-21 01:28:34,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47869 states. [2021-11-21 01:28:36,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47869 to 47855. [2021-11-21 01:28:36,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47855 states, 29519 states have (on average 1.3348351908940004) internal successors, (39403), 30380 states have internal predecessors, (39403), 14916 states have call successors, (14916), 3474 states have call predecessors, (14916), 3419 states have return successors, (15427), 14607 states have call predecessors, (15427), 14913 states have call successors, (15427) [2021-11-21 01:28:37,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47855 states to 47855 states and 69746 transitions. [2021-11-21 01:28:37,095 INFO L78 Accepts]: Start accepts. Automaton has 47855 states and 69746 transitions. Word has length 58 [2021-11-21 01:28:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:37,096 INFO L470 AbstractCegarLoop]: Abstraction has 47855 states and 69746 transitions. [2021-11-21 01:28:37,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:28:37,096 INFO L276 IsEmpty]: Start isEmpty. Operand 47855 states and 69746 transitions. [2021-11-21 01:28:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-21 01:28:37,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:37,124 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-21 01:28:37,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:28:37,125 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:28:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:37,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1398758212, now seen corresponding path program 1 times [2021-11-21 01:28:37,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:37,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635776058] [2021-11-21 01:28:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:37,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:37,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:37,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635776058] [2021-11-21 01:28:37,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635776058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:37,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:28:37,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:28:37,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210710218] [2021-11-21 01:28:37,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:37,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:28:37,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:37,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:28:37,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:37,542 INFO L87 Difference]: Start difference. First operand 47855 states and 69746 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:28:41,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:28:45,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:50,312 WARN L515 Checker$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 01:28:53,021 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 01:28:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:57,346 INFO L93 Difference]: Finished difference Result 111428 states and 162542 transitions. [2021-11-21 01:28:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:28:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2021-11-21 01:28:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:57,847 INFO L225 Difference]: With dead ends: 111428 [2021-11-21 01:28:57,847 INFO L226 Difference]: Without dead ends: 67487 [2021-11-21 01:28:58,049 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 01:28:58,051 INFO L933 BasicCegarLoop]: 7780 mSDtfsCounter, 4875 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 11956 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:58,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4879 Valid, 11956 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1653 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2021-11-21 01:28:58,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67487 states. [2021-11-21 01:29:00,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67487 to 67473. [2021-11-21 01:29:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67473 states, 41689 states have (on average 1.33577202619396) internal successors, (55687), 42896 states have internal predecessors, (55687), 20972 states have call successors, (20972), 4888 states have call predecessors, (20972), 4811 states have return successors, (21685), 20541 states have call predecessors, (21685), 20969 states have call successors, (21685) [2021-11-21 01:29:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67473 states to 67473 states and 98344 transitions. [2021-11-21 01:29:01,371 INFO L78 Accepts]: Start accepts. Automaton has 67473 states and 98344 transitions. Word has length 69 [2021-11-21 01:29:01,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:29:01,371 INFO L470 AbstractCegarLoop]: Abstraction has 67473 states and 98344 transitions. [2021-11-21 01:29:01,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:29:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 67473 states and 98344 transitions. [2021-11-21 01:29:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-21 01:29:01,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:29:01,392 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:29:01,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:29:01,392 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:29:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:29:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1755959195, now seen corresponding path program 1 times [2021-11-21 01:29:01,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:29:01,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981975955] [2021-11-21 01:29:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:01,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:29:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-21 01:29:02,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:29:02,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981975955] [2021-11-21 01:29:02,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981975955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:29:02,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:29:02,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:29:02,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820628479] [2021-11-21 01:29:02,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:29:02,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:29:02,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:29:02,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:29:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:29:02,145 INFO L87 Difference]: Start difference. First operand 67473 states and 98344 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:29:05,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:29:09,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:13,753 WARN L515 Checker$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 01:29:15,814 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 01:29:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:29:20,881 INFO L93 Difference]: Finished difference Result 70526 states and 102625 transitions. [2021-11-21 01:29:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:29:20,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2021-11-21 01:29:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:29:21,228 INFO L225 Difference]: With dead ends: 70526 [2021-11-21 01:29:21,229 INFO L226 Difference]: Without dead ends: 70523 [2021-11-21 01:29:21,268 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 01:29:21,268 INFO L933 BasicCegarLoop]: 4608 mSDtfsCounter, 541 mSDsluCounter, 4783 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 8807 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:29:21,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 8807 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1239 Invalid, 4 Unknown, 0 Unchecked, 16.9s Time] [2021-11-21 01:29:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70523 states. [2021-11-21 01:29:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70523 to 70523. [2021-11-21 01:29:24,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70523 states, 43525 states have (on average 1.3378518093049971) internal successors, (58230), 44773 states have internal predecessors, (58230), 21832 states have call successors, (21832), 5242 states have call predecessors, (21832), 5165 states have return successors, (22546), 21388 states have call predecessors, (22546), 21830 states have call successors, (22546) [2021-11-21 01:29:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70523 states to 70523 states and 102608 transitions. [2021-11-21 01:29:24,829 INFO L78 Accepts]: Start accepts. Automaton has 70523 states and 102608 transitions. Word has length 68 [2021-11-21 01:29:24,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:29:24,830 INFO L470 AbstractCegarLoop]: Abstraction has 70523 states and 102608 transitions. [2021-11-21 01:29:24,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:29:24,831 INFO L276 IsEmpty]: Start isEmpty. Operand 70523 states and 102608 transitions. [2021-11-21 01:29:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-21 01:29:24,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:29:24,871 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-21 01:29:24,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:29:24,872 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:29:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:29:24,872 INFO L85 PathProgramCache]: Analyzing trace with hash 300661044, now seen corresponding path program 1 times [2021-11-21 01:29:24,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:29:24,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972392966] [2021-11-21 01:29:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:24,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:29:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:25,216 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:29:25,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972392966] [2021-11-21 01:29:25,226 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-21 01:29:25,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101515661] [2021-11-21 01:29:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:25,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:29:25,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:29:25,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:29:25,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:29:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:27,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 8053 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:29:27,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:29:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:29:27,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:29:27,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101515661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:29:27,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:29:27,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:29:27,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643408517] [2021-11-21 01:29:27,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:29:27,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:29:27,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:29:27,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:29:27,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:29:27,896 INFO L87 Difference]: Start difference. First operand 70523 states and 102608 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-21 01:29:30,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:29:35,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:41,576 WARN L515 Checker$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 01:29:46,879 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 01:29:50,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:29:50,898 INFO L93 Difference]: Finished difference Result 195238 states and 284612 transitions. [2021-11-21 01:29:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:29:50,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2021-11-21 01:29:50,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:29:51,776 INFO L225 Difference]: With dead ends: 195238 [2021-11-21 01:29:51,776 INFO L226 Difference]: Without dead ends: 124716 [2021-11-21 01:29:52,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 01:29:52,082 INFO L933 BasicCegarLoop]: 6617 mSDtfsCounter, 4671 mSDsluCounter, 4902 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 38 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 10905 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:29:52,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4676 Valid, 10905 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1576 Invalid, 3 Unknown, 0 Unchecked, 18.8s Time] [2021-11-21 01:29:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124716 states. [2021-11-21 01:29:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124716 to 124661. [2021-11-21 01:29:57,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124661 states, 77290 states have (on average 1.337624530987191) internal successors, (103385), 79626 states have internal predecessors, (103385), 38272 states have call successors, (38272), 9249 states have call predecessors, (38272), 9098 states have return successors, (39462), 37424 states have call predecessors, (39462), 38270 states have call successors, (39462) [2021-11-21 01:29:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124661 states to 124661 states and 181119 transitions. [2021-11-21 01:29:58,272 INFO L78 Accepts]: Start accepts. Automaton has 124661 states and 181119 transitions. Word has length 97 [2021-11-21 01:29:58,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:29:58,273 INFO L470 AbstractCegarLoop]: Abstraction has 124661 states and 181119 transitions. [2021-11-21 01:29:58,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-21 01:29:58,273 INFO L276 IsEmpty]: Start isEmpty. Operand 124661 states and 181119 transitions. [2021-11-21 01:29:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 01:29:58,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:29:58,295 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-21 01:29:58,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:29:58,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:29:58,523 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:29:58,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:29:58,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1123250231, now seen corresponding path program 1 times [2021-11-21 01:29:58,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:29:58,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489206651] [2021-11-21 01:29:58,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:58,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:29:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-21 01:29:59,417 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:29:59,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489206651] [2021-11-21 01:29:59,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489206651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:29:59,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:29:59,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:29:59,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662744553] [2021-11-21 01:29:59,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:29:59,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:29:59,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:29:59,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:29:59,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:29:59,420 INFO L87 Difference]: Start difference. First operand 124661 states and 181119 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:30:02,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:30:06,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:12,503 WARN L515 Checker$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 01:30:15,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:18,276 WARN L515 Checker$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 01:30:22,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:30:22,472 INFO L93 Difference]: Finished difference Result 124677 states and 181140 transitions. [2021-11-21 01:30:22,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:30:22,472 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2021-11-21 01:30:22,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:30:23,069 INFO L225 Difference]: With dead ends: 124677 [2021-11-21 01:30:23,069 INFO L226 Difference]: Without dead ends: 124674 [2021-11-21 01:30:23,123 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 01:30:23,124 INFO L933 BasicCegarLoop]: 5584 mSDtfsCounter, 4757 mSDsluCounter, 4455 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4757 SdHoareTripleChecker+Valid, 9503 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:30:23,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4757 Valid, 9503 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1211 Invalid, 4 Unknown, 0 Unchecked, 19.5s Time] [2021-11-21 01:30:23,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124674 states. [2021-11-21 01:30:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124674 to 124665. [2021-11-21 01:30:28,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124665 states, 77292 states have (on average 1.337615794648864) internal successors, (103387), 79628 states have internal predecessors, (103387), 38274 states have call successors, (38274), 9249 states have call predecessors, (38274), 9098 states have return successors, (39464), 37426 states have call predecessors, (39464), 38272 states have call successors, (39464) [2021-11-21 01:30:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124665 states to 124665 states and 181125 transitions. [2021-11-21 01:30:29,634 INFO L78 Accepts]: Start accepts. Automaton has 124665 states and 181125 transitions. Word has length 93 [2021-11-21 01:30:29,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:30:29,634 INFO L470 AbstractCegarLoop]: Abstraction has 124665 states and 181125 transitions. [2021-11-21 01:30:29,635 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:30:29,635 INFO L276 IsEmpty]: Start isEmpty. Operand 124665 states and 181125 transitions. [2021-11-21 01:30:29,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-21 01:30:29,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:29,659 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-21 01:30:29,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:30:29,660 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:29,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:29,660 INFO L85 PathProgramCache]: Analyzing trace with hash 86433211, now seen corresponding path program 1 times [2021-11-21 01:30:29,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:29,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859091618] [2021-11-21 01:30:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:29,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:30,045 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:30,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859091618] [2021-11-21 01:30:30,046 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-21 01:30:30,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049080692] [2021-11-21 01:30:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:30,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:30:30,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:30:30,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:30:30,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d73c0e6-d92e-478a-81d5-5e02a0374d9e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:30:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:32,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 8182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:30:32,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:30:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 01:30:32,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:30:32,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049080692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:30:32,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:30:32,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:30:32,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668354355] [2021-11-21 01:30:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:30:32,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:30:32,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:32,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:30:32,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:30:32,948 INFO L87 Difference]: Start difference. First operand 124665 states and 181125 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)