./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba --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 811f76e6dcf7867c41caea68fec389c0ca46124bb64dc4727c646cbcbde9e73c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:21:57,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:21:57,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:21:57,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:21:57,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:21:57,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:21:57,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:21:57,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:21:57,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:21:57,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:21:57,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:21:57,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:21:57,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:21:57,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:21:57,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:21:57,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:21:57,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:21:57,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:21:57,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:21:57,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:21:57,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:21:57,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:21:57,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:21:57,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:21:57,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:21:57,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:21:57,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:21:57,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:21:57,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:21:57,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:21:57,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:21:57,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:21:57,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:21:57,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:21:57,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:21:57,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:21:57,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:21:57,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:21:57,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:21:57,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:21:57,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:21:57,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:21:57,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:21:57,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:21:57,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:21:57,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:21:57,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:21:57,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:21:57,514 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:21:57,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:21:57,514 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:21:57,515 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:21:57,515 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:21:57,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:21:57,515 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:21:57,515 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:21:57,516 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:21:57,516 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:21:57,516 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:21:57,516 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:21:57,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:21:57,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:21:57,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:21:57,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:21:57,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:21:57,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:21:57,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:21:57,518 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:21:57,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:21:57,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:21:57,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:21:57,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:21:57,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:21:57,520 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:21:57,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:21:57,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:21:57,520 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:21:57,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:21:57,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:21:57,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:21:57,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811f76e6dcf7867c41caea68fec389c0ca46124bb64dc4727c646cbcbde9e73c [2022-11-22 02:21:57,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:21:57,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:21:57,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:21:57,823 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:21:57,823 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:21:57,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-22 02:22:00,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:22:01,788 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:22:01,789 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-22 02:22:01,873 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/data/25958f066/b24e7ce565884257b3431a8f11cbf514/FLAG71bea0642 [2022-11-22 02:22:01,888 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/data/25958f066/b24e7ce565884257b3431a8f11cbf514 [2022-11-22 02:22:01,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:22:01,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:22:01,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:01,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:22:01,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:22:01,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:01" (1/1) ... [2022-11-22 02:22:01,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1578012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:01, skipping insertion in model container [2022-11-22 02:22:01,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:01" (1/1) ... [2022-11-22 02:22:01,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:22:02,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:22:09,204 WARN L237 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_796eb854-234b-4ff5-8163-58241a51a314/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[882034,882047] [2022-11-22 02:22:09,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:09,434 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:22:10,464 WARN L237 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_796eb854-234b-4ff5-8163-58241a51a314/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[882034,882047] [2022-11-22 02:22:10,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:10,772 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:22:10,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10 WrapperNode [2022-11-22 02:22:10,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:10,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:10,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:22:10,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:22:10,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:11,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:11,938 INFO L138 Inliner]: procedures = 564, calls = 10786, calls flagged for inlining = 343, calls inlined = 337, statements flattened = 25674 [2022-11-22 02:22:11,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:11,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:22:11,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:22:11,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:22:11,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:11,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:12,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:12,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:12,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:12,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:12,861 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:12,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:13,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:22:13,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:22:13,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:22:13,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:22:13,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (1/1) ... [2022-11-22 02:22:13,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:13,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:22:13,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:22:13,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796eb854-234b-4ff5-8163-58241a51a314/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:22:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2022-11-22 02:22:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2022-11-22 02:22:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2022-11-22 02:22:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2022-11-22 02:22:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2022-11-22 02:22:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2022-11-22 02:22:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 02:22:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 02:22:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:22:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:22:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2022-11-22 02:22:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2022-11-22 02:22:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2022-11-22 02:22:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2022-11-22 02:22:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2022-11-22 02:22:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2022-11-22 02:22:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2022-11-22 02:22:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2022-11-22 02:22:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2022-11-22 02:22:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2022-11-22 02:22:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2022-11-22 02:22:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2022-11-22 02:22:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2022-11-22 02:22:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2022-11-22 02:22:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:22:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:22:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 02:22:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 02:22:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 02:22:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 02:22:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2022-11-22 02:22:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2022-11-22 02:22:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2022-11-22 02:22:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2022-11-22 02:22:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2022-11-22 02:22:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2022-11-22 02:22:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2022-11-22 02:22:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2022-11-22 02:22:13,359 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 02:22:13,359 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2022-11-22 02:22:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2022-11-22 02:22:13,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:22:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:22:13,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-22 02:22:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-22 02:22:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-22 02:22:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-22 02:22:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2022-11-22 02:22:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2022-11-22 02:22:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:22:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:22:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 02:22:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 02:22:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2022-11-22 02:22:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2022-11-22 02:22:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2022-11-22 02:22:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2022-11-22 02:22:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2022-11-22 02:22:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2022-11-22 02:22:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:22:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2022-11-22 02:22:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2022-11-22 02:22:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 02:22:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 02:22:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2022-11-22 02:22:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2022-11-22 02:22:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2022-11-22 02:22:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2022-11-22 02:22:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2022-11-22 02:22:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2022-11-22 02:22:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 02:22:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 02:22:13,363 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-22 02:22:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-22 02:22:13,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:22:13,363 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2022-11-22 02:22:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2022-11-22 02:22:13,363 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:22:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:22:13,363 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2022-11-22 02:22:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2022-11-22 02:22:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:22:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:22:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:22:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2022-11-22 02:22:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2022-11-22 02:22:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:22:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2022-11-22 02:22:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2022-11-22 02:22:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:22:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:22:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:22:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:22:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2022-11-22 02:22:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2022-11-22 02:22:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:22:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:22:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-22 02:22:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-22 02:22:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-22 02:22:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-22 02:22:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2022-11-22 02:22:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2022-11-22 02:22:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2022-11-22 02:22:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2022-11-22 02:22:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2022-11-22 02:22:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2022-11-22 02:22:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-22 02:22:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-22 02:22:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2022-11-22 02:22:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2022-11-22 02:22:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2022-11-22 02:22:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2022-11-22 02:22:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2022-11-22 02:22:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2022-11-22 02:22:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-22 02:22:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-22 02:22:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-22 02:22:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-22 02:22:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:22:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 02:22:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 02:22:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-22 02:22:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-22 02:22:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 02:22:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 02:22:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-22 02:22:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-22 02:22:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 02:22:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 02:22:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2022-11-22 02:22:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2022-11-22 02:22:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:22:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:22:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:22:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:22:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:22:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:22:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 02:22:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2022-11-22 02:22:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2022-11-22 02:22:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:22:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:22:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:22:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:22:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2022-11-22 02:22:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2022-11-22 02:22:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2022-11-22 02:22:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2022-11-22 02:22:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 02:22:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 02:22:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2022-11-22 02:22:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2022-11-22 02:22:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2022-11-22 02:22:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2022-11-22 02:22:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2022-11-22 02:22:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2022-11-22 02:22:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2022-11-22 02:22:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2022-11-22 02:22:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2022-11-22 02:22:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2022-11-22 02:22:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2022-11-22 02:22:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2022-11-22 02:22:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2022-11-22 02:22:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2022-11-22 02:22:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2022-11-22 02:22:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2022-11-22 02:22:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2022-11-22 02:22:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2022-11-22 02:22:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-22 02:22:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-22 02:22:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2022-11-22 02:22:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2022-11-22 02:22:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:22:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:22:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-22 02:22:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-22 02:22:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2022-11-22 02:22:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2022-11-22 02:22:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2022-11-22 02:22:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2022-11-22 02:22:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:22:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:22:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:22:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:22:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2022-11-22 02:22:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2022-11-22 02:22:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2022-11-22 02:22:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2022-11-22 02:22:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 02:22:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 02:22:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-22 02:22:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-22 02:22:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-22 02:22:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-22 02:22:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2022-11-22 02:22:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2022-11-22 02:22:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2022-11-22 02:22:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2022-11-22 02:22:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2022-11-22 02:22:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2022-11-22 02:22:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2022-11-22 02:22:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2022-11-22 02:22:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2022-11-22 02:22:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2022-11-22 02:22:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2022-11-22 02:22:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2022-11-22 02:22:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 02:22:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 02:22:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2022-11-22 02:22:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2022-11-22 02:22:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:22:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:22:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2022-11-22 02:22:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2022-11-22 02:22:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2022-11-22 02:22:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2022-11-22 02:22:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 02:22:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 02:22:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2022-11-22 02:22:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2022-11-22 02:22:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2022-11-22 02:22:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2022-11-22 02:22:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2022-11-22 02:22:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2022-11-22 02:22:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2022-11-22 02:22:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2022-11-22 02:22:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2022-11-22 02:22:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2022-11-22 02:22:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:22:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:22:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2022-11-22 02:22:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2022-11-22 02:22:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2022-11-22 02:22:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2022-11-22 02:22:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2022-11-22 02:22:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2022-11-22 02:22:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2022-11-22 02:22:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2022-11-22 02:22:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-22 02:22:13,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-22 02:22:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:22:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:22:13,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:22:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 02:22:13,381 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 02:22:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 02:22:13,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 02:22:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-22 02:22:13,382 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-22 02:22:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 02:22:13,382 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 02:22:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:22:13,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:22:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2022-11-22 02:22:13,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2022-11-22 02:22:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2022-11-22 02:22:13,382 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2022-11-22 02:22:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2022-11-22 02:22:13,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2022-11-22 02:22:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-22 02:22:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-22 02:22:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2022-11-22 02:22:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2022-11-22 02:22:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-22 02:22:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-22 02:22:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2022-11-22 02:22:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2022-11-22 02:22:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-22 02:22:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-22 02:22:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2022-11-22 02:22:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2022-11-22 02:22:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2022-11-22 02:22:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2022-11-22 02:22:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 02:22:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 02:22:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 02:22:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 02:22:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2022-11-22 02:22:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2022-11-22 02:22:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2022-11-22 02:22:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2022-11-22 02:22:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2022-11-22 02:22:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2022-11-22 02:22:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2022-11-22 02:22:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2022-11-22 02:22:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:22:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2022-11-22 02:22:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2022-11-22 02:22:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:22:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:22:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2022-11-22 02:22:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2022-11-22 02:22:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2022-11-22 02:22:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2022-11-22 02:22:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2022-11-22 02:22:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2022-11-22 02:22:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2022-11-22 02:22:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2022-11-22 02:22:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-22 02:22:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-22 02:22:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2022-11-22 02:22:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2022-11-22 02:22:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2022-11-22 02:22:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2022-11-22 02:22:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-22 02:22:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-22 02:22:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2022-11-22 02:22:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2022-11-22 02:22:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-22 02:22:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-22 02:22:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-22 02:22:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-22 02:22:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:22:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:22:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2022-11-22 02:22:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2022-11-22 02:22:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 02:22:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 02:22:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2022-11-22 02:22:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2022-11-22 02:22:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2022-11-22 02:22:13,389 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2022-11-22 02:22:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2022-11-22 02:22:13,389 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2022-11-22 02:22:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 02:22:13,389 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 02:22:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 02:22:13,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 02:22:13,389 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2022-11-22 02:22:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2022-11-22 02:22:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:22:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2022-11-22 02:22:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2022-11-22 02:22:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-22 02:22:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-22 02:22:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:22:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:22:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2022-11-22 02:22:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2022-11-22 02:22:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-22 02:22:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-22 02:22:15,576 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:22:15,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:22:19,703 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:24:29,879 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:24:30,423 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:24:41,161 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:24:41,162 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-22 02:24:41,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:41 BoogieIcfgContainer [2022-11-22 02:24:41,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:24:41,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:24:41,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:24:41,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:24:41,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:22:01" (1/3) ... [2022-11-22 02:24:41,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac85fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:41, skipping insertion in model container [2022-11-22 02:24:41,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:10" (2/3) ... [2022-11-22 02:24:41,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac85fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:41, skipping insertion in model container [2022-11-22 02:24:41,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:41" (3/3) ... [2022-11-22 02:24:41,189 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-22 02:24:41,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:24:41,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:24:41,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:24:41,391 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@548c5b33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:24:41,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:24:41,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 6044 states, 3689 states have (on average 1.371645432366495) internal successors, (5060), 3852 states have internal predecessors, (5060), 2201 states have call successors, (2201), 162 states have call predecessors, (2201), 161 states have return successors, (2191), 2122 states have call predecessors, (2191), 2191 states have call successors, (2191) [2022-11-22 02:24:41,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-22 02:24:41,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:24:41,455 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2022-11-22 02:24:41,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:24:41,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:24:41,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2079635139, now seen corresponding path program 1 times [2022-11-22 02:24:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:24:41,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143239874] [2022-11-22 02:24:41,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:24:41,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:24:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:24:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2022-11-22 02:24:44,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:24:44,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143239874] [2022-11-22 02:24:44,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143239874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:24:44,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:24:44,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:24:44,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853958783] [2022-11-22 02:24:44,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:24:44,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:24:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:24:44,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:24:44,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:24:44,094 INFO L87 Difference]: Start difference. First operand has 6044 states, 3689 states have (on average 1.371645432366495) internal successors, (5060), 3852 states have internal predecessors, (5060), 2201 states have call successors, (2201), 162 states have call predecessors, (2201), 161 states have return successors, (2191), 2122 states have call predecessors, (2191), 2191 states have call successors, (2191) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 02:24:46,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:50,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:52,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:55,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:57,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:03,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:05,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:07,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:10,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:12,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:14,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:14,096 INFO L93 Difference]: Finished difference Result 11419 states and 17629 transitions. [2022-11-22 02:25:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:14,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 293 [2022-11-22 02:25:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:14,162 INFO L225 Difference]: With dead ends: 11419 [2022-11-22 02:25:14,162 INFO L226 Difference]: Without dead ends: 6669 [2022-11-22 02:25:14,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:14,196 INFO L413 NwaCegarLoop]: 6609 mSDtfsCounter, 5587 mSDsluCounter, 5368 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 21 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5591 SdHoareTripleChecker+Valid, 11977 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:14,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5591 Valid, 11977 Invalid, 1176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1146 Invalid, 9 Unknown, 0 Unchecked, 29.3s Time] [2022-11-22 02:25:14,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6669 states. [2022-11-22 02:25:15,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6669 to 6664. [2022-11-22 02:25:15,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6664 states, 4255 states have (on average 1.3562867215041128) internal successors, (5771), 4386 states have internal predecessors, (5771), 2176 states have call successors, (2176), 233 states have call predecessors, (2176), 232 states have return successors, (2175), 2108 states have call predecessors, (2175), 2173 states have call successors, (2175) [2022-11-22 02:25:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6664 states to 6664 states and 10122 transitions. [2022-11-22 02:25:15,364 INFO L78 Accepts]: Start accepts. Automaton has 6664 states and 10122 transitions. Word has length 293 [2022-11-22 02:25:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:15,370 INFO L495 AbstractCegarLoop]: Abstraction has 6664 states and 10122 transitions. [2022-11-22 02:25:15,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 02:25:15,371 INFO L276 IsEmpty]: Start isEmpty. Operand 6664 states and 10122 transitions. [2022-11-22 02:25:15,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-22 02:25:15,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:15,394 INFO L195 NwaCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:15,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:25:15,395 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:15,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:15,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1429580067, now seen corresponding path program 1 times [2022-11-22 02:25:15,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:15,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311256814] [2022-11-22 02:25:15,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:15,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:18,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3071 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3071 trivial. 0 not checked. [2022-11-22 02:25:18,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:18,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311256814] [2022-11-22 02:25:18,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311256814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:18,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:18,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:25:18,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527019796] [2022-11-22 02:25:18,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:18,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:25:18,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:18,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:25:18,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:25:18,530 INFO L87 Difference]: Start difference. First operand 6664 states and 10122 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-22 02:25:21,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:25,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:29,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:33,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:36,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:37,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:38,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:41,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:42,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:44,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:47,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:48,321 INFO L93 Difference]: Finished difference Result 9930 states and 15074 transitions. [2022-11-22 02:25:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:25:48,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 338 [2022-11-22 02:25:48,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:48,409 INFO L225 Difference]: With dead ends: 9930 [2022-11-22 02:25:48,410 INFO L226 Difference]: Without dead ends: 9914 [2022-11-22 02:25:48,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:48,420 INFO L413 NwaCegarLoop]: 5897 mSDtfsCounter, 4922 mSDsluCounter, 10534 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4928 SdHoareTripleChecker+Valid, 16431 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:48,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4928 Valid, 16431 Invalid, 1589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1582 Invalid, 7 Unknown, 0 Unchecked, 29.2s Time] [2022-11-22 02:25:48,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9914 states. [2022-11-22 02:25:49,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9914 to 9906. [2022-11-22 02:25:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9906 states, 6326 states have (on average 1.356781536515966) internal successors, (8583), 6523 states have internal predecessors, (8583), 3228 states have call successors, (3228), 352 states have call predecessors, (3228), 351 states have return successors, (3231), 3125 states have call predecessors, (3231), 3225 states have call successors, (3231) [2022-11-22 02:25:49,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9906 states to 9906 states and 15042 transitions. [2022-11-22 02:25:49,472 INFO L78 Accepts]: Start accepts. Automaton has 9906 states and 15042 transitions. Word has length 338 [2022-11-22 02:25:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:49,477 INFO L495 AbstractCegarLoop]: Abstraction has 9906 states and 15042 transitions. [2022-11-22 02:25:49,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-22 02:25:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9906 states and 15042 transitions. [2022-11-22 02:25:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-11-22 02:25:49,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:49,506 INFO L195 NwaCegarLoop]: trace histogram [29, 27, 27, 27, 27, 27, 27, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:49,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:25:49,506 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:49,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1216615725, now seen corresponding path program 1 times [2022-11-22 02:25:49,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:49,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104624939] [2022-11-22 02:25:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:49,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2939 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2936 trivial. 0 not checked. [2022-11-22 02:25:55,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:55,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104624939] [2022-11-22 02:25:55,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104624939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:55,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:55,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:55,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370483477] [2022-11-22 02:25:55,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:55,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:55,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:55,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:55,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:55,510 INFO L87 Difference]: Start difference. First operand 9906 states and 15042 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 02:25:58,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:03,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:05,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:07,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:10,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:12,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:14,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:17,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:19,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:21,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:22,671 INFO L93 Difference]: Finished difference Result 22955 states and 34787 transitions. [2022-11-22 02:26:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:26:22,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 361 [2022-11-22 02:26:22,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:22,765 INFO L225 Difference]: With dead ends: 22955 [2022-11-22 02:26:22,765 INFO L226 Difference]: Without dead ends: 13104 [2022-11-22 02:26:22,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:22,809 INFO L413 NwaCegarLoop]: 5476 mSDtfsCounter, 3205 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 10090 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:22,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3208 Valid, 10090 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1148 Invalid, 8 Unknown, 0 Unchecked, 26.6s Time] [2022-11-22 02:26:22,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13104 states. [2022-11-22 02:26:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13104 to 13088. [2022-11-22 02:26:23,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13088 states, 8304 states have (on average 1.3491088631984585) internal successors, (11203), 8583 states have internal predecessors, (11203), 4282 states have call successors, (4282), 502 states have call predecessors, (4282), 501 states have return successors, (4288), 4135 states have call predecessors, (4288), 4279 states have call successors, (4288) [2022-11-22 02:26:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13088 states to 13088 states and 19773 transitions. [2022-11-22 02:26:24,043 INFO L78 Accepts]: Start accepts. Automaton has 13088 states and 19773 transitions. Word has length 361 [2022-11-22 02:26:24,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:24,045 INFO L495 AbstractCegarLoop]: Abstraction has 13088 states and 19773 transitions. [2022-11-22 02:26:24,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 02:26:24,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13088 states and 19773 transitions. [2022-11-22 02:26:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-22 02:26:24,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:24,091 INFO L195 NwaCegarLoop]: trace histogram [33, 27, 27, 27, 27, 27, 27, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:24,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:26:24,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:24,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1096382368, now seen corresponding path program 1 times [2022-11-22 02:26:24,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:24,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131026259] [2022-11-22 02:26:24,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:24,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3274 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2022-11-22 02:26:28,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:28,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131026259] [2022-11-22 02:26:28,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131026259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:28,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:28,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:26:28,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878358259] [2022-11-22 02:26:28,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:28,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:26:28,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:28,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:26:28,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:28,259 INFO L87 Difference]: Start difference. First operand 13088 states and 19773 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:26:31,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:36,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:38,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:41,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:43,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:44,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:48,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:50,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:52,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:54,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:56,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:56,362 INFO L93 Difference]: Finished difference Result 28312 states and 42779 transitions. [2022-11-22 02:26:56,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:26:56,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 421 [2022-11-22 02:26:56,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:56,454 INFO L225 Difference]: With dead ends: 28312 [2022-11-22 02:26:56,454 INFO L226 Difference]: Without dead ends: 17396 [2022-11-22 02:26:56,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:56,499 INFO L413 NwaCegarLoop]: 7643 mSDtfsCounter, 3234 mSDsluCounter, 4612 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 12255 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:56,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 12255 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1447 Invalid, 8 Unknown, 0 Unchecked, 27.5s Time] [2022-11-22 02:26:56,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17396 states. [2022-11-22 02:26:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17396 to 17383. [2022-11-22 02:26:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17383 states, 11008 states have (on average 1.3474745639534884) internal successors, (14833), 11388 states have internal predecessors, (14833), 5695 states have call successors, (5695), 680 states have call predecessors, (5695), 679 states have return successors, (5704), 5494 states have call predecessors, (5704), 5692 states have call successors, (5704) [2022-11-22 02:26:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17383 states to 17383 states and 26232 transitions. [2022-11-22 02:26:58,110 INFO L78 Accepts]: Start accepts. Automaton has 17383 states and 26232 transitions. Word has length 421 [2022-11-22 02:26:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:58,111 INFO L495 AbstractCegarLoop]: Abstraction has 17383 states and 26232 transitions. [2022-11-22 02:26:58,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:26:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 17383 states and 26232 transitions. [2022-11-22 02:26:58,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2022-11-22 02:26:58,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:58,184 INFO L195 NwaCegarLoop]: trace histogram [35, 27, 27, 27, 27, 27, 27, 8, 8, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:58,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:26:58,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:58,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:58,185 INFO L85 PathProgramCache]: Analyzing trace with hash 387470440, now seen corresponding path program 1 times [2022-11-22 02:26:58,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:58,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880895227] [2022-11-22 02:26:58,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:58,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:04,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3434 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3395 trivial. 0 not checked. [2022-11-22 02:27:04,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:27:04,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880895227] [2022-11-22 02:27:04,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880895227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:27:04,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:27:04,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:27:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050372307] [2022-11-22 02:27:04,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:27:04,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:27:04,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:27:04,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:27:04,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:27:04,233 INFO L87 Difference]: Start difference. First operand 17383 states and 26232 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 02:27:07,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:17,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:20,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:23,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:25,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:28,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:31,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:34,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:39,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:41,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:27:41,447 INFO L93 Difference]: Finished difference Result 40454 states and 61011 transitions. [2022-11-22 02:27:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:27:41,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 444 [2022-11-22 02:27:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:27:41,565 INFO L225 Difference]: With dead ends: 40454 [2022-11-22 02:27:41,565 INFO L226 Difference]: Without dead ends: 25243 [2022-11-22 02:27:41,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:27:41,620 INFO L413 NwaCegarLoop]: 9709 mSDtfsCounter, 5932 mSDsluCounter, 10695 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 6 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5936 SdHoareTripleChecker+Valid, 20404 SdHoareTripleChecker+Invalid, 3975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:27:41,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5936 Valid, 20404 Invalid, 3975 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 3962 Invalid, 7 Unknown, 0 Unchecked, 36.1s Time] [2022-11-22 02:27:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25243 states. [2022-11-22 02:27:43,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25243 to 25228. [2022-11-22 02:27:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25228 states, 15890 states have (on average 1.344241661422278) internal successors, (21360), 16465 states have internal predecessors, (21360), 8323 states have call successors, (8323), 1015 states have call predecessors, (8323), 1014 states have return successors, (8338), 8021 states have call predecessors, (8338), 8320 states have call successors, (8338) [2022-11-22 02:27:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25228 states to 25228 states and 38021 transitions. [2022-11-22 02:27:43,877 INFO L78 Accepts]: Start accepts. Automaton has 25228 states and 38021 transitions. Word has length 444 [2022-11-22 02:27:43,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:27:43,881 INFO L495 AbstractCegarLoop]: Abstraction has 25228 states and 38021 transitions. [2022-11-22 02:27:43,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 02:27:43,881 INFO L276 IsEmpty]: Start isEmpty. Operand 25228 states and 38021 transitions. [2022-11-22 02:27:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-22 02:27:43,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:43,965 INFO L195 NwaCegarLoop]: trace histogram [37, 27, 27, 27, 27, 27, 27, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:27:43,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:27:43,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:43,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:43,967 INFO L85 PathProgramCache]: Analyzing trace with hash -86815343, now seen corresponding path program 1 times [2022-11-22 02:27:43,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:27:43,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650048076] [2022-11-22 02:27:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:43,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:27:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:50,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3629 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3602 trivial. 0 not checked. [2022-11-22 02:27:50,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:27:50,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650048076] [2022-11-22 02:27:50,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650048076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:27:50,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:27:50,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:27:50,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063657825] [2022-11-22 02:27:50,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:27:50,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:27:50,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:27:50,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:27:50,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:27:50,217 INFO L87 Difference]: Start difference. First operand 25228 states and 38021 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-22 02:27:53,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:58,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:00,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:03,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:05,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:08,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:10,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:13,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:28:14,440 INFO L93 Difference]: Finished difference Result 70840 states and 106825 transitions. [2022-11-22 02:28:14,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:28:14,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 479 [2022-11-22 02:28:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:28:14,855 INFO L225 Difference]: With dead ends: 70840 [2022-11-22 02:28:14,855 INFO L226 Difference]: Without dead ends: 47784 [2022-11-22 02:28:14,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:28:14,940 INFO L413 NwaCegarLoop]: 7895 mSDtfsCounter, 4887 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 12595 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:28:14,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4893 Valid, 12595 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1324 Invalid, 8 Unknown, 0 Unchecked, 22.9s Time] [2022-11-22 02:28:14,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47784 states. [2022-11-22 02:28:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47784 to 47755. [2022-11-22 02:28:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47755 states, 30111 states have (on average 1.3448573610972734) internal successors, (40495), 31194 states have internal predecessors, (40495), 15736 states have call successors, (15736), 1908 states have call predecessors, (15736), 1907 states have return successors, (15775), 15172 states have call predecessors, (15775), 15733 states have call successors, (15775) [2022-11-22 02:28:18,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47755 states to 47755 states and 72006 transitions. [2022-11-22 02:28:18,331 INFO L78 Accepts]: Start accepts. Automaton has 47755 states and 72006 transitions. Word has length 479 [2022-11-22 02:28:18,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:28:18,332 INFO L495 AbstractCegarLoop]: Abstraction has 47755 states and 72006 transitions. [2022-11-22 02:28:18,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-22 02:28:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 47755 states and 72006 transitions. [2022-11-22 02:28:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-11-22 02:28:18,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:28:18,794 INFO L195 NwaCegarLoop]: trace histogram [38, 27, 27, 27, 27, 27, 27, 10, 10, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:28:18,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:28:18,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:28:18,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:28:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash 321238218, now seen corresponding path program 1 times [2022-11-22 02:28:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:28:18,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178803429] [2022-11-22 02:28:18,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:28:18,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:28:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:28:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3759 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3718 trivial. 0 not checked. [2022-11-22 02:28:24,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:28:24,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178803429] [2022-11-22 02:28:24,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178803429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:28:24,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:28:24,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:28:24,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124131778] [2022-11-22 02:28:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:28:24,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:28:24,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:28:24,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:28:24,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:28:24,310 INFO L87 Difference]: Start difference. First operand 47755 states and 72006 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-22 02:28:27,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:32,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:35,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:39,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:40,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:42,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:44,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:45,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:48,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:50,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:52,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:54,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:28:56,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:28:56,662 INFO L93 Difference]: Finished difference Result 104579 states and 157716 transitions. [2022-11-22 02:28:56,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:28:56,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 494 [2022-11-22 02:28:56,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:28:57,042 INFO L225 Difference]: With dead ends: 104579 [2022-11-22 02:28:57,042 INFO L226 Difference]: Without dead ends: 58996 [2022-11-22 02:28:57,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:28:57,471 INFO L413 NwaCegarLoop]: 9179 mSDtfsCounter, 4886 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 13879 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:28:57,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 13879 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1521 Invalid, 9 Unknown, 0 Unchecked, 30.2s Time] [2022-11-22 02:28:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58996 states. [2022-11-22 02:29:01,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58996 to 58949. [2022-11-22 02:29:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58949 states, 37191 states have (on average 1.3451641526175688) internal successors, (50028), 38524 states have internal predecessors, (50028), 19405 states have call successors, (19405), 2352 states have call predecessors, (19405), 2352 states have return successors, (19457), 18715 states have call predecessors, (19457), 19402 states have call successors, (19457) [2022-11-22 02:29:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58949 states to 58949 states and 88890 transitions. [2022-11-22 02:29:02,100 INFO L78 Accepts]: Start accepts. Automaton has 58949 states and 88890 transitions. Word has length 494 [2022-11-22 02:29:02,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:29:02,101 INFO L495 AbstractCegarLoop]: Abstraction has 58949 states and 88890 transitions. [2022-11-22 02:29:02,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-22 02:29:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 58949 states and 88890 transitions. [2022-11-22 02:29:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-11-22 02:29:02,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:29:02,633 INFO L195 NwaCegarLoop]: trace histogram [39, 27, 27, 27, 27, 27, 27, 11, 11, 8, 8, 8, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:29:02,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:29:02,634 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:29:02,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:29:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 235960005, now seen corresponding path program 1 times [2022-11-22 02:29:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:29:02,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144882177] [2022-11-22 02:29:02,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:29:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:29:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:29:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 3871 trivial. 0 not checked. [2022-11-22 02:29:06,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:29:06,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144882177] [2022-11-22 02:29:06,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144882177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:29:06,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:29:06,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:29:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338179558] [2022-11-22 02:29:06,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:29:06,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:29:06,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:29:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:29:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:29:06,851 INFO L87 Difference]: Start difference. First operand 58949 states and 88890 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 02:29:09,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:15,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:17,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:21,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:23,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:25,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:28,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:31,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:33,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:29:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:29:33,716 INFO L93 Difference]: Finished difference Result 119946 states and 180852 transitions. [2022-11-22 02:29:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:29:33,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 509 [2022-11-22 02:29:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:29:34,021 INFO L225 Difference]: With dead ends: 119946 [2022-11-22 02:29:34,022 INFO L226 Difference]: Without dead ends: 56888 [2022-11-22 02:29:34,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:29:34,186 INFO L413 NwaCegarLoop]: 7591 mSDtfsCounter, 3181 mSDsluCounter, 4697 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 12288 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:29:34,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 12288 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1335 Invalid, 7 Unknown, 0 Unchecked, 24.6s Time] [2022-11-22 02:29:34,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56888 states. [2022-11-22 02:29:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56888 to 56871. [2022-11-22 02:29:38,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56871 states, 35875 states have (on average 1.3450871080139373) internal successors, (48255), 37157 states have internal predecessors, (48255), 18721 states have call successors, (18721), 2274 states have call predecessors, (18721), 2274 states have return successors, (18770), 18060 states have call predecessors, (18770), 18718 states have call successors, (18770) [2022-11-22 02:29:38,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56871 states to 56871 states and 85746 transitions. [2022-11-22 02:29:38,596 INFO L78 Accepts]: Start accepts. Automaton has 56871 states and 85746 transitions. Word has length 509 [2022-11-22 02:29:38,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:29:38,597 INFO L495 AbstractCegarLoop]: Abstraction has 56871 states and 85746 transitions. [2022-11-22 02:29:38,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 02:29:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 56871 states and 85746 transitions. [2022-11-22 02:29:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2022-11-22 02:29:38,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:29:38,715 INFO L195 NwaCegarLoop]: trace histogram [39, 27, 27, 27, 27, 27, 27, 11, 11, 8, 8, 8, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:29:38,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:29:38,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:29:38,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:29:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2021186185, now seen corresponding path program 1 times [2022-11-22 02:29:38,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:29:38,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823499874] [2022-11-22 02:29:38,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:29:38,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:29:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat