./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V --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 16a1834859d6e79a3ffde73cf1cc64a77737592f9d48684edb7ee0bfc6a01ee8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:38:30,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:38:30,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:38:30,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:38:30,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:38:30,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:38:30,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:38:30,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:38:30,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:38:30,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:38:30,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:38:30,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:38:30,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:38:30,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:38:30,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:38:30,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:38:30,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:38:30,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:38:30,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:38:30,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:38:30,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:38:30,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:38:30,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:38:30,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:38:30,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:38:30,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:38:30,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:38:30,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:38:30,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:38:30,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:38:30,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:38:30,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:38:30,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:38:30,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:38:30,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:38:30,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:38:30,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:38:30,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:38:30,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:38:30,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:38:30,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:38:30,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:38:30,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:38:30,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:38:30,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:38:30,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:38:30,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:38:30,940 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:38:30,940 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:38:30,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:38:30,941 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:38:30,941 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:38:30,942 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:38:30,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:38:30,943 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:38:30,943 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:38:30,944 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:38:30,944 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:38:30,944 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:38:30,944 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:38:30,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:38:30,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:38:30,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:38:30,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:38:30,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:38:30,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:38:30,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:38:30,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:38:30,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:38:30,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:38:30,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:38:30,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:38:30,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:38:30,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:38:30,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:38:30,951 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:38:30,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:38:30,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:38:30,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:38:30,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:38:30,952 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a1834859d6e79a3ffde73cf1cc64a77737592f9d48684edb7ee0bfc6a01ee8 [2021-11-23 03:38:31,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:38:31,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:38:31,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:38:31,324 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:38:31,325 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:38:31,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-23 03:38:31,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/data/10508c67e/b431e855227842cf9c36f485705446c0/FLAGce7601e3e [2021-11-23 03:38:33,039 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:38:33,040 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-23 03:38:33,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/data/10508c67e/b431e855227842cf9c36f485705446c0/FLAGce7601e3e [2021-11-23 03:38:33,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/data/10508c67e/b431e855227842cf9c36f485705446c0 [2021-11-23 03:38:33,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:38:33,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:38:33,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:38:33,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:38:33,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:38:33,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:33" (1/1) ... [2021-11-23 03:38:33,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c28825a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33, skipping insertion in model container [2021-11-23 03:38:33,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:33" (1/1) ... [2021-11-23 03:38:33,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:38:33,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:38:46,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i[949222,949235] [2021-11-23 03:38:46,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:38:46,483 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:38:48,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i[949222,949235] [2021-11-23 03:38:48,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:38:48,810 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:38:48,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48 WrapperNode [2021-11-23 03:38:48,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:38:48,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:38:48,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:38:48,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:38:48,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:49,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:50,407 INFO L137 Inliner]: procedures = 906, calls = 10634, calls flagged for inlining = 417, calls inlined = 414, statements flattened = 27103 [2021-11-23 03:38:50,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:38:50,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:38:50,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:38:50,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:38:50,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:50,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:50,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:50,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:51,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:51,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:51,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:52,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:38:52,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:38:52,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:38:52,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:38:52,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (1/1) ... [2021-11-23 03:38:52,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:38:52,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:52,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:38:52,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:38:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_find_first_chain [2021-11-23 03:38:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_find_first_chain [2021-11-23 03:38:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_start [2021-11-23 03:38:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_start [2021-11-23 03:38:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_txq_agg_disable [2021-11-23 03:38:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_txq_agg_disable [2021-11-23 03:38:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure il_add_station_common [2021-11-23 03:38:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure il_add_station_common [2021-11-23 03:38:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_request_scan [2021-11-23 03:38:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_request_scan [2021-11-23 03:38:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_static_wepkey_cmd [2021-11-23 03:38:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_static_wepkey_cmd [2021-11-23 03:38:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_txq_check_empty [2021-11-23 03:38:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_txq_check_empty [2021-11-23 03:38:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_set_hw_ready [2021-11-23 03:38:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_set_hw_ready [2021-11-23 03:38:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-23 03:38:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-23 03:38:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_sta_alloc_lq [2021-11-23 03:38:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_sta_alloc_lq [2021-11-23 03:38:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_verify_ucode [2021-11-23 03:38:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_verify_ucode [2021-11-23 03:38:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:38:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:38:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 03:38:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 03:38:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rx_replenish_now [2021-11-23 03:38:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rx_replenish_now [2021-11-23 03:38:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_stats_request [2021-11-23 03:38:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_stats_request [2021-11-23 03:38:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_tx_queue_stop_scheduler [2021-11-23 03:38:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_tx_queue_stop_scheduler [2021-11-23 03:38:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hwrate_to_plcp_idx [2021-11-23 03:38:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hwrate_to_plcp_idx [2021-11-23 03:38:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_extract_rate [2021-11-23 03:38:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_extract_rate [2021-11-23 03:38:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_spectrum_measurement [2021-11-23 03:38:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hwrate_to_tx_control [2021-11-23 03:38:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hwrate_to_tx_control [2021-11-23 03:38:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:38:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_sta_add [2021-11-23 03:38:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_sta_add [2021-11-23 03:38:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 03:38:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:38:52,264 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:38:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2021-11-23 03:38:52,264 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2021-11-23 03:38:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_add_interface [2021-11-23 03:38:52,265 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_add_interface [2021-11-23 03:38:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure il_sta_id_or_broadcast [2021-11-23 03:38:52,266 INFO L138 BoogieDeclarations]: Found implementation of procedure il_sta_id_or_broadcast [2021-11-23 03:38:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 03:38:52,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 03:38:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure il_alloc_fw_desc [2021-11-23 03:38:52,267 INFO L138 BoogieDeclarations]: Found implementation of procedure il_alloc_fw_desc [2021-11-23 03:38:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 03:38:52,268 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 03:38:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure __il_free_pages [2021-11-23 03:38:52,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __il_free_pages [2021-11-23 03:38:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure il_update_stats [2021-11-23 03:38:52,269 INFO L138 BoogieDeclarations]: Found implementation of procedure il_update_stats [2021-11-23 03:38:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 03:38:52,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 03:38:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_configure_filter [2021-11-23 03:38:52,270 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_configure_filter [2021-11-23 03:38:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:38:52,270 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:38:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure il_clear_ucode_stations [2021-11-23 03:38:52,271 INFO L138 BoogieDeclarations]: Found implementation of procedure il_clear_ucode_stations [2021-11-23 03:38:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure _il_rd_prph [2021-11-23 03:38:52,271 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_rd_prph [2021-11-23 03:38:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_reassoc_req [2021-11-23 03:38:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_reassoc_req [2021-11-23 03:38:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:38:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:38:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_get_supported_rates [2021-11-23 03:38:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_get_supported_rates [2021-11-23 03:38:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hdl_compressed_ba [2021-11-23 03:38:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hdl_compressed_ba [2021-11-23 03:38:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:38:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hw_tx_queue_init [2021-11-23 03:38:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hw_tx_queue_init [2021-11-23 03:38:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_txq_set_sched [2021-11-23 03:38:52,275 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_txq_set_sched [2021-11-23 03:38:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hw_valid_rtc_data_addr [2021-11-23 03:38:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hw_valid_rtc_data_addr [2021-11-23 03:38:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure rate_supported [2021-11-23 03:38:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure rate_supported [2021-11-23 03:38:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_num_of_ant [2021-11-23 03:38:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_num_of_ant [2021-11-23 03:38:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-23 03:38:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-23 03:38:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_remove_interface [2021-11-23 03:38:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_remove_interface [2021-11-23 03:38:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_dealloc_ucode_pci [2021-11-23 03:38:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_dealloc_ucode_pci [2021-11-23 03:38:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_config [2021-11-23 03:38:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_config [2021-11-23 03:38:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_free_tfds_in_queue [2021-11-23 03:38:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_free_tfds_in_queue [2021-11-23 03:38:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:38:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:38:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure il_get_cmd_string [2021-11-23 03:38:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure il_get_cmd_string [2021-11-23 03:38:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 03:38:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 03:38:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_switch_to_siso [2021-11-23 03:38:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_switch_to_siso [2021-11-23 03:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure il_set_bit [2021-11-23 03:38:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure il_set_bit [2021-11-23 03:38:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rate_control_unregister [2021-11-23 03:38:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rate_control_unregister [2021-11-23 03:38:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_9 [2021-11-23 03:38:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_9 [2021-11-23 03:38:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 03:38:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 03:38:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:38:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure il_is_alive [2021-11-23 03:38:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure il_is_alive [2021-11-23 03:38:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:38:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:38:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_tx [2021-11-23 03:38:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_tx [2021-11-23 03:38:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:38:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 03:38:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hw_txq_ctx_free [2021-11-23 03:38:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hw_txq_ctx_free [2021-11-23 03:38:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 03:38:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 03:38:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_collect_tx_data [2021-11-23 03:38:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_collect_tx_data [2021-11-23 03:38:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_eeprom_acquire_semaphore [2021-11-23 03:38:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_eeprom_acquire_semaphore [2021-11-23 03:38:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_get_best_rate [2021-11-23 03:38:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_get_best_rate [2021-11-23 03:38:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_update_tkip_key [2021-11-23 03:38:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_update_tkip_key [2021-11-23 03:38:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rate_n_flags_from_tbl [2021-11-23 03:38:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rate_n_flags_from_tbl [2021-11-23 03:38:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 03:38:52,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 03:38:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:38:52,316 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:38:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-11-23 03:38:52,316 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-11-23 03:38:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure _il_rd [2021-11-23 03:38:52,317 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_rd [2021-11-23 03:38:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure il_queue_dec_wrap [2021-11-23 03:38:52,317 INFO L138 BoogieDeclarations]: Found implementation of procedure il_queue_dec_wrap [2021-11-23 03:38:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 03:38:52,317 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 03:38:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure il_get_debug_level [2021-11-23 03:38:52,318 INFO L138 BoogieDeclarations]: Found implementation of procedure il_get_debug_level [2021-11-23 03:38:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure _il_stop_queue [2021-11-23 03:38:52,320 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_stop_queue [2021-11-23 03:38:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_commit_rxon [2021-11-23 03:38:52,320 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_commit_rxon [2021-11-23 03:38:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:38:52,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:38:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_flush [2021-11-23 03:38:52,321 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_flush [2021-11-23 03:38:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hw_txq_free_tfd [2021-11-23 03:38:52,321 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hw_txq_free_tfd [2021-11-23 03:38:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_init_alive_start [2021-11-23 03:38:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_init_alive_start [2021-11-23 03:38:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_down [2021-11-23 03:38:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_down [2021-11-23 03:38:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure iw4965_is_ht40_channel [2021-11-23 03:38:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure iw4965_is_ht40_channel [2021-11-23 03:38:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_morefrags [2021-11-23 03:38:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_morefrags [2021-11-23 03:38:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:38:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure sign_extend32 [2021-11-23 03:38:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_extend32 [2021-11-23 03:38:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 03:38:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 03:38:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure il_is_ready_rf [2021-11-23 03:38:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure il_is_ready_rf [2021-11-23 03:38:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-23 03:38:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-23 03:38:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure il_clear_bits_prph [2021-11-23 03:38:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure il_clear_bits_prph [2021-11-23 03:38:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure _il_wake_queue [2021-11-23 03:38:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_wake_queue [2021-11-23 03:38:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure il_print_rx_config_cmd [2021-11-23 03:38:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure il_print_rx_config_cmd [2021-11-23 03:38:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_send_beacon_cmd [2021-11-23 03:38:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_send_beacon_cmd [2021-11-23 03:38:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data [2021-11-23 03:38:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data [2021-11-23 03:38:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_switch_to_mimo2 [2021-11-23 03:38:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_switch_to_mimo2 [2021-11-23 03:38:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure _il_release_nic_access [2021-11-23 03:38:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_release_nic_access [2021-11-23 03:38:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_rx_replenish [2021-11-23 03:38:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_rx_replenish [2021-11-23 03:38:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 03:38:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 03:38:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 03:38:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 03:38:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-23 03:38:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-23 03:38:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure il_is_channel_valid [2021-11-23 03:38:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure il_is_channel_valid [2021-11-23 03:38:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 03:38:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 03:38:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_update_chain_flags [2021-11-23 03:38:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_update_chain_flags [2021-11-23 03:38:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:38:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:38:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_conf_tx [2021-11-23 03:38:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_conf_tx [2021-11-23 03:38:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure _il_wr [2021-11-23 03:38:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_wr [2021-11-23 03:38:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_post_associate [2021-11-23 03:38:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_post_associate [2021-11-23 03:38:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure il_is_any_associated [2021-11-23 03:38:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure il_is_any_associated [2021-11-23 03:38:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-23 03:38:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-23 03:38:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure il_free_fw_desc [2021-11-23 03:38:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure il_free_fw_desc [2021-11-23 03:38:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_init_sensitivity [2021-11-23 03:38:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_init_sensitivity [2021-11-23 03:38:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_8 [2021-11-23 03:38:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_8 [2021-11-23 03:38:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_9 [2021-11-23 03:38:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_9 [2021-11-23 03:38:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:38:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure il_wr [2021-11-23 03:38:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure il_wr [2021-11-23 03:38:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 03:38:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 03:38:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_update_rate_tbl [2021-11-23 03:38:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_update_rate_tbl [2021-11-23 03:38:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:38:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_7 [2021-11-23 03:38:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_7 [2021-11-23 03:38:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_dbgfs_set_mcs [2021-11-23 03:38:52,355 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_dbgfs_set_mcs [2021-11-23 03:38:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure il_enable_rfkill_int [2021-11-23 03:38:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure il_enable_rfkill_int [2021-11-23 03:38:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 03:38:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 03:38:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure il_get_channel_info [2021-11-23 03:38:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure il_get_channel_info [2021-11-23 03:38:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_7 [2021-11-23 03:38:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_7 [2021-11-23 03:38:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hdl_stats [2021-11-23 03:38:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hdl_stats [2021-11-23 03:38:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-23 03:38:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-23 03:38:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2021-11-23 03:38:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2021-11-23 03:38:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rx_replenish [2021-11-23 03:38:52,361 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rx_replenish [2021-11-23 03:38:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 03:38:52,361 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 03:38:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure il_eeprom_free [2021-11-23 03:38:52,361 INFO L138 BoogieDeclarations]: Found implementation of procedure il_eeprom_free [2021-11-23 03:38:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_ucode_rx_stats_read [2021-11-23 03:38:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_ucode_rx_stats_read [2021-11-23 03:38:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_cancel_deferred_work [2021-11-23 03:38:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_cancel_deferred_work [2021-11-23 03:38:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_fill_txpower_tbl [2021-11-23 03:38:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_fill_txpower_tbl [2021-11-23 03:38:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_tfd_get_num_tbs [2021-11-23 03:38:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_tfd_get_num_tbs [2021-11-23 03:38:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 03:38:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 03:38:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure il_irq_handle_error [2021-11-23 03:38:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure il_irq_handle_error [2021-11-23 03:38:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 03:38:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 03:38:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure il_queue_inc_wrap [2021-11-23 03:38:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure il_queue_inc_wrap [2021-11-23 03:38:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 03:38:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 03:38:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure il_restore_stations [2021-11-23 03:38:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure il_restore_stations [2021-11-23 03:38:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_get_adjacent_rate [2021-11-23 03:38:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_get_adjacent_rate [2021-11-23 03:38:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_9 [2021-11-23 03:38:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_9 [2021-11-23 03:38:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure il_rd [2021-11-23 03:38:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure il_rd [2021-11-23 03:38:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 03:38:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 03:38:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_free_dma_ptr [2021-11-23 03:38:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_free_dma_ptr [2021-11-23 03:38:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure il_get_free_ucode_key_idx [2021-11-23 03:38:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure il_get_free_ucode_key_idx [2021-11-23 03:38:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~dma_addr_t~0~X~~u16~0~X~~u8~0~X~~u8~0~TO~int [2021-11-23 03:38:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~dma_addr_t~0~X~~u16~0~X~~u8~0~X~~u8~0~TO~int [2021-11-23 03:38:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_set_expected_tpt_table [2021-11-23 03:38:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_set_expected_tpt_table [2021-11-23 03:38:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_bss_info_changed [2021-11-23 03:38:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_bss_info_changed [2021-11-23 03:38:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work___0 [2021-11-23 03:38:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work___0 [2021-11-23 03:38:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:38:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_ucode_general_stats_read [2021-11-23 03:38:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_ucode_general_stats_read [2021-11-23 03:38:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hw_txq_attach_buf_to_tfd [2021-11-23 03:38:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hw_txq_attach_buf_to_tfd [2021-11-23 03:38:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 03:38:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 03:38:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:38:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:38:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure _il_grab_nic_access [2021-11-23 03:38:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_grab_nic_access [2021-11-23 03:38:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure il_txq_update_write_ptr [2021-11-23 03:38:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure il_txq_update_write_ptr [2021-11-23 03:38:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_error [2021-11-23 03:38:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_stay_in_table [2021-11-23 03:38:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_stay_in_table [2021-11-23 03:38:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure il_power_update_mode [2021-11-23 03:38:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure il_power_update_mode [2021-11-23 03:38:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-23 03:38:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-23 03:38:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hw_get_temperature [2021-11-23 03:38:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hw_get_temperature [2021-11-23 03:38:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_send_led_cmd [2021-11-23 03:38:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_send_led_cmd [2021-11-23 03:38:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure _il_clear_bit [2021-11-23 03:38:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_clear_bit [2021-11-23 03:38:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 03:38:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 03:38:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-23 03:38:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-23 03:38:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_txpower_work [2021-11-23 03:38:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_txpower_work [2021-11-23 03:38:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure il_eeprom_query16 [2021-11-23 03:38:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure il_eeprom_query16 [2021-11-23 03:38:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_7 [2021-11-23 03:38:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_7 [2021-11-23 03:38:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 03:38:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 03:38:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_request_firmware [2021-11-23 03:38:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_request_firmware [2021-11-23 03:38:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_restart [2021-11-23 03:38:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_restart [2021-11-23 03:38:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-23 03:38:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-23 03:38:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_change_interface [2021-11-23 03:38:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_change_interface [2021-11-23 03:38:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure conf_is_ht [2021-11-23 03:38:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_is_ht [2021-11-23 03:38:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_hw_scan [2021-11-23 03:38:52,384 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_hw_scan [2021-11-23 03:38:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure rate_lowest_index___0 [2021-11-23 03:38:52,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rate_lowest_index___0 [2021-11-23 03:38:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure il_commit_rxon [2021-11-23 03:38:52,384 INFO L138 BoogieDeclarations]: Found implementation of procedure il_commit_rxon [2021-11-23 03:38:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-23 03:38:52,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-23 03:38:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-23 03:38:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-23 03:38:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure il_write_targ_mem [2021-11-23 03:38:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure il_write_targ_mem [2021-11-23 03:38:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_verify_inst_sparse [2021-11-23 03:38:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_verify_inst_sparse [2021-11-23 03:38:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-23 03:38:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-23 03:38:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-11-23 03:38:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-11-23 03:38:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-23 03:38:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-23 03:38:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_get_fifo_from_tid [2021-11-23 03:38:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_get_fifo_from_tid [2021-11-23 03:38:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 03:38:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 03:38:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_config_ap [2021-11-23 03:38:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_config_ap [2021-11-23 03:38:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 03:38:52,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 03:38:52,402 INFO L130 BoogieDeclarations]: Found specification of procedure __il4965_up [2021-11-23 03:38:52,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __il4965_up [2021-11-23 03:38:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:38:52,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:38:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_alive_start [2021-11-23 03:38:52,403 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_alive_start [2021-11-23 03:38:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure _il_write8 [2021-11-23 03:38:52,403 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_write8 [2021-11-23 03:38:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-23 03:38:52,404 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-23 03:38:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-23 03:38:52,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-23 03:38:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 03:38:52,404 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 03:38:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 03:38:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 03:38:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:38:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:38:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_restore_default_wep_keys [2021-11-23 03:38:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_restore_default_wep_keys [2021-11-23 03:38:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_run_time_calib_work [2021-11-23 03:38:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_run_time_calib_work [2021-11-23 03:38:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 03:38:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 03:38:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_eeprom_release_semaphore [2021-11-23 03:38:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_eeprom_release_semaphore [2021-11-23 03:38:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_7 [2021-11-23 03:38:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_7 [2021-11-23 03:38:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_sta_remove [2021-11-23 03:38:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_sta_remove [2021-11-23 03:38:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure il_rd_prph [2021-11-23 03:38:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure il_rd_prph [2021-11-23 03:38:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_load_bsm [2021-11-23 03:38:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_load_bsm [2021-11-23 03:38:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_synchronize_irq [2021-11-23 03:38:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_synchronize_irq [2021-11-23 03:38:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_first_antenna [2021-11-23 03:38:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_first_antenna [2021-11-23 03:38:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_pm_debug_stats [2021-11-23 03:38:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:38:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:38:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_dump_nic_error_log [2021-11-23 03:38:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_dump_nic_error_log [2021-11-23 03:38:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-23 03:38:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-23 03:38:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure il_scan_cancel [2021-11-23 03:38:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure il_scan_cancel [2021-11-23 03:38:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure il_apm_init [2021-11-23 03:38:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure il_apm_init [2021-11-23 03:38:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_tx_ba_cb_irqsafe [2021-11-23 03:38:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_tx_ba_cb_irqsafe [2021-11-23 03:38:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_prepare_card_hw [2021-11-23 03:38:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_prepare_card_hw [2021-11-23 03:38:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_tx_queue_set_status [2021-11-23 03:38:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_tx_queue_set_status [2021-11-23 03:38:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure get_min_power_idx [2021-11-23 03:38:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure get_min_power_idx [2021-11-23 03:38:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_send_rxon_assoc [2021-11-23 03:38:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_send_rxon_assoc [2021-11-23 03:38:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_set_wr_ptrs [2021-11-23 03:38:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_set_wr_ptrs [2021-11-23 03:38:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_mgmt [2021-11-23 03:38:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_mgmt [2021-11-23 03:38:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_qos_ctl [2021-11-23 03:38:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_qos_ctl [2021-11-23 03:38:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_rxon_assoc [2021-11-23 03:38:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_rxon_assoc [2021-11-23 03:38:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:38:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-23 03:38:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-23 03:38:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_pci_probe [2021-11-23 03:38:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_pci_probe [2021-11-23 03:38:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-23 03:38:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-23 03:38:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 03:38:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 03:38:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure il_queue_used [2021-11-23 03:38:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure il_queue_used [2021-11-23 03:38:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_csa [2021-11-23 03:38:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hwrate_to_mac80211_idx [2021-11-23 03:38:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hwrate_to_mac80211_idx [2021-11-23 03:38:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-23 03:38:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-23 03:38:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:38:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-23 03:38:52,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-23 03:38:52,415 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 03:38:52,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 03:38:52,415 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rx_queue_restock [2021-11-23 03:38:52,415 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rx_queue_restock [2021-11-23 03:38:52,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:38:52,415 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_alloc_dma_ptr [2021-11-23 03:38:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_alloc_dma_ptr [2021-11-23 03:38:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:38:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:38:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:38:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:38:52,416 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_ampdu_action [2021-11-23 03:38:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_ampdu_action [2021-11-23 03:38:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-23 03:38:52,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-23 03:38:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:38:52,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:38:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_init_alive_start [2021-11-23 03:38:52,417 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_init_alive_start [2021-11-23 03:38:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-11-23 03:38:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-11-23 03:38:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure il_wake_queue [2021-11-23 03:38:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure il_wake_queue [2021-11-23 03:38:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 03:38:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 03:38:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_toggle_tx_ant [2021-11-23 03:38:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_toggle_tx_ant [2021-11-23 03:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_set_rxon_chain [2021-11-23 03:38:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_set_rxon_chain [2021-11-23 03:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_sensitivity_write [2021-11-23 03:38:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_sensitivity_write [2021-11-23 03:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure il_sta_id [2021-11-23 03:38:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure il_sta_id [2021-11-23 03:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-23 03:38:52,420 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-23 03:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_stop [2021-11-23 03:38:52,420 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_stop [2021-11-23 03:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_pci_remove [2021-11-23 03:38:52,420 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_pci_remove [2021-11-23 03:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-23 03:38:52,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-23 03:38:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_9 [2021-11-23 03:38:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_9 [2021-11-23 03:38:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure il_wr___0 [2021-11-23 03:38:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure il_wr___0 [2021-11-23 03:38:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_rxon_timing [2021-11-23 03:38:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_rxon_timing [2021-11-23 03:38:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure il_rx_queue_update_write_ptr [2021-11-23 03:38:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure il_rx_queue_update_write_ptr [2021-11-23 03:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:38:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_math_div_round [2021-11-23 03:38:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_math_div_round [2021-11-23 03:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:38:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_lq_cmd [2021-11-23 03:38:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_lq_cmd [2021-11-23 03:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_cmd_pdu [2021-11-23 03:38:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_cmd_pdu [2021-11-23 03:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_free [2021-11-23 03:38:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_free [2021-11-23 03:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_txq_update_byte_cnt_tbl [2021-11-23 03:38:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_txq_update_byte_cnt_tbl [2021-11-23 03:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_free_frame [2021-11-23 03:38:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_free_frame [2021-11-23 03:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_tx_last_beacon [2021-11-23 03:38:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_tx_last_beacon [2021-11-23 03:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 03:38:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 03:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 03:38:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 03:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure il_wr_prph [2021-11-23 03:38:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure il_wr_prph [2021-11-23 03:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_get_tbl_info_from_mcs [2021-11-23 03:38:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_get_tbl_info_from_mcs [2021-11-23 03:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 03:38:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 03:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_tx_queue_reclaim [2021-11-23 03:38:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_tx_queue_reclaim [2021-11-23 03:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_add_sta [2021-11-23 03:38:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_add_sta [2021-11-23 03:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rx_allocate [2021-11-23 03:38:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rx_allocate [2021-11-23 03:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure il_is_ht40_tx_allowed [2021-11-23 03:38:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure il_is_ht40_tx_allowed [2021-11-23 03:38:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure il_dealloc_bcast_stations [2021-11-23 03:38:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure il_dealloc_bcast_stations [2021-11-23 03:38:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:38:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:38:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:38:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_stats_flag [2021-11-23 03:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_stats_flag [2021-11-23 03:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_is_valid_ant [2021-11-23 03:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_is_valid_ant [2021-11-23 03:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_pm_sleep [2021-11-23 03:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_table_type_matches [2021-11-23 03:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_table_type_matches [2021-11-23 03:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure il_queue_space [2021-11-23 03:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure il_queue_space [2021-11-23 03:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-11-23 03:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-11-23 03:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_set_stay_in_table [2021-11-23 03:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_set_stay_in_table [2021-11-23 03:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_send_tx_power [2021-11-23 03:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_send_tx_power [2021-11-23 03:38:52,430 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 03:38:52,430 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 03:38:52,430 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_uninit_drv [2021-11-23 03:38:52,430 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_uninit_drv [2021-11-23 03:38:52,430 INFO L130 BoogieDeclarations]: Found specification of procedure il_set_bits_prph [2021-11-23 03:38:52,430 INFO L138 BoogieDeclarations]: Found implementation of procedure il_set_bits_prph [2021-11-23 03:38:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-11-23 03:38:52,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-11-23 03:38:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_update_bcast_stations [2021-11-23 03:38:52,431 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_update_bcast_stations [2021-11-23 03:38:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_channel_switch [2021-11-23 03:38:52,431 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_channel_switch [2021-11-23 03:38:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure il_enable_interrupts [2021-11-23 03:38:52,431 INFO L138 BoogieDeclarations]: Found implementation of procedure il_enable_interrupts [2021-11-23 03:38:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:38:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:38:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_toggle_antenna [2021-11-23 03:38:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_toggle_antenna [2021-11-23 03:38:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_tx_status_to_mac80211 [2021-11-23 03:38:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_tx_status_to_mac80211 [2021-11-23 03:38:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 03:38:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 03:38:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_rate_scale_clear_win [2021-11-23 03:38:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_rate_scale_clear_win [2021-11-23 03:38:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure il_is_associated [2021-11-23 03:38:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure il_is_associated [2021-11-23 03:38:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hw_channel_switch [2021-11-23 03:38:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hw_channel_switch [2021-11-23 03:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure il_scan_cancel_timeout [2021-11-23 03:38:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure il_scan_cancel_timeout [2021-11-23 03:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure il_free_channel_map [2021-11-23 03:38:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure il_free_channel_map [2021-11-23 03:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-23 03:38:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-23 03:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_probe_resp [2021-11-23 03:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_probe_resp [2021-11-23 03:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_is_single_rx_stream [2021-11-23 03:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_is_single_rx_stream [2021-11-23 03:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 03:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 03:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure il_disable_interrupts [2021-11-23 03:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure il_disable_interrupts [2021-11-23 03:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2021-11-23 03:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2021-11-23 03:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure il_mac_reset_tsf [2021-11-23 03:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure il_mac_reset_tsf [2021-11-23 03:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-23 03:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-23 03:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_start_tx_ba_cb_irqsafe [2021-11-23 03:38:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_start_tx_ba_cb_irqsafe [2021-11-23 03:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_use_green [2021-11-23 03:38:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_use_green [2021-11-23 03:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-23 03:38:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-23 03:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_get_fh_string [2021-11-23 03:38:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_get_fh_string [2021-11-23 03:38:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-23 03:38:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-23 03:38:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_cmd [2021-11-23 03:38:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_cmd [2021-11-23 03:38:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_alive_start [2021-11-23 03:38:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_alive_start [2021-11-23 03:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_set_key [2021-11-23 03:38:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_set_key [2021-11-23 03:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-23 03:38:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-23 03:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_sta_dbgfs_scale_table_write [2021-11-23 03:38:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_sta_dbgfs_scale_table_write [2021-11-23 03:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure il_set_tx_power [2021-11-23 03:38:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure il_set_tx_power [2021-11-23 03:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_fill_link_cmd [2021-11-23 03:38:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_fill_link_cmd [2021-11-23 03:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_post_scan [2021-11-23 03:38:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_post_scan [2021-11-23 03:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:38:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:38:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-23 03:38:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-23 03:38:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-23 03:38:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-23 03:38:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 03:38:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 03:38:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_assoc_req [2021-11-23 03:38:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_assoc_req [2021-11-23 03:38:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure il_read_targ_mem [2021-11-23 03:38:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure il_read_targ_mem [2021-11-23 03:38:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure il_eeprom_query_addr [2021-11-23 03:38:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure il_eeprom_query_addr [2021-11-23 03:38:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 03:38:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 03:38:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_chain_noise_calibration [2021-11-23 03:38:52,443 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_chain_noise_calibration [2021-11-23 03:38:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 03:38:52,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 03:38:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2021-11-23 03:38:52,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2021-11-23 03:38:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 03:38:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 03:38:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_interpolate_value [2021-11-23 03:38:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_interpolate_value [2021-11-23 03:38:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure _il_wr_prph [2021-11-23 03:38:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_wr_prph [2021-11-23 03:38:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-23 03:38:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-23 03:38:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-23 03:38:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-23 03:38:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure __il4965_down [2021-11-23 03:38:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __il4965_down [2021-11-23 03:38:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure _il_poll_bit [2021-11-23 03:38:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure _il_poll_bit [2021-11-23 03:38:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure il_is_rfkill [2021-11-23 03:38:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure il_is_rfkill [2021-11-23 03:38:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_remove_debugfs [2021-11-23 03:38:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_remove_debugfs [2021-11-23 03:38:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-23 03:38:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-23 03:38:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 03:38:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 03:38:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 03:38:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 03:38:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_rs_tl_rm_old_stats [2021-11-23 03:38:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_rs_tl_rm_old_stats [2021-11-23 03:38:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:38:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:38:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2021-11-23 03:38:52,448 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2021-11-23 03:38:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure il_set_rxon_ht [2021-11-23 03:38:52,448 INFO L138 BoogieDeclarations]: Found implementation of procedure il_set_rxon_ht [2021-11-23 03:38:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:38:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:38:52,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:38:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hdl_tx [2021-11-23 03:38:52,448 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hdl_tx [2021-11-23 03:38:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-23 03:38:52,449 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-23 03:38:55,684 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:38:55,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:38:56,527 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:39:31,476 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:39:49,412 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:39:49,412 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:39:49,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:39:49 BoogieIcfgContainer [2021-11-23 03:39:49,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:39:49,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:39:49,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:39:49,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:39:49,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:38:33" (1/3) ... [2021-11-23 03:39:49,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202390f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:39:49, skipping insertion in model container [2021-11-23 03:39:49,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:48" (2/3) ... [2021-11-23 03:39:49,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202390f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:39:49, skipping insertion in model container [2021-11-23 03:39:49,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:39:49" (3/3) ... [2021-11-23 03:39:49,431 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-23 03:39:49,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:39:49,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:39:49,522 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:39:49,536 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:39:49,536 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:39:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 6964 states, 4319 states have (on average 1.3368835378559851) internal successors, (5774), 4485 states have internal predecessors, (5774), 2304 states have call successors, (2304), 340 states have call predecessors, (2304), 339 states have return successors, (2281), 2242 states have call predecessors, (2281), 2281 states have call successors, (2281) [2021-11-23 03:39:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2021-11-23 03:39:49,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:49,802 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:49,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:39:49,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:49,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1065226055, now seen corresponding path program 1 times [2021-11-23 03:39:49,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:49,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172621266] [2021-11-23 03:39:49,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:49,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7872 trivial. 0 not checked. [2021-11-23 03:39:52,785 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:52,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172621266] [2021-11-23 03:39:52,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172621266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:52,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:52,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:39:52,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544866683] [2021-11-23 03:39:52,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:52,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:39:52,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:39:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:39:52,867 INFO L87 Difference]: Start difference. First operand has 6964 states, 4319 states have (on average 1.3368835378559851) internal successors, (5774), 4485 states have internal predecessors, (5774), 2304 states have call successors, (2304), 340 states have call predecessors, (2304), 339 states have return successors, (2281), 2242 states have call predecessors, (2281), 2281 states have call successors, (2281) Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-23 03:39:55,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:01,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:06,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:09,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:11,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:13,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:15,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:15,467 INFO L93 Difference]: Finished difference Result 18716 states and 28106 transitions. [2021-11-23 03:40:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:40:15,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 638 [2021-11-23 03:40:15,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:15,636 INFO L225 Difference]: With dead ends: 18716 [2021-11-23 03:40:15,636 INFO L226 Difference]: Without dead ends: 11789 [2021-11-23 03:40:15,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:40:15,709 INFO L933 BasicCegarLoop]: 11116 mSDtfsCounter, 9149 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9149 SdHoareTripleChecker+Valid, 18632 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:15,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9149 Valid, 18632 Invalid, 1988 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1979 Invalid, 4 Unknown, 0 Unchecked, 21.5s Time] [2021-11-23 03:40:15,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11789 states. [2021-11-23 03:40:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11789 to 11692. [2021-11-23 03:40:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 7393 states have (on average 1.3414040308399837) internal successors, (9917), 7644 states have internal predecessors, (9917), 3680 states have call successors, (3680), 621 states have call predecessors, (3680), 618 states have return successors, (3786), 3589 states have call predecessors, (3786), 3679 states have call successors, (3786) [2021-11-23 03:40:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 17383 transitions. [2021-11-23 03:40:17,167 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 17383 transitions. Word has length 638 [2021-11-23 03:40:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:17,171 INFO L470 AbstractCegarLoop]: Abstraction has 11692 states and 17383 transitions. [2021-11-23 03:40:17,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-23 03:40:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 17383 transitions. [2021-11-23 03:40:17,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2021-11-23 03:40:17,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:17,276 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 6, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:17,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:40:17,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:40:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 936854849, now seen corresponding path program 1 times [2021-11-23 03:40:17,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:17,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185430497] [2021-11-23 03:40:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:17,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7942 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7942 trivial. 0 not checked. [2021-11-23 03:40:18,604 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:18,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185430497] [2021-11-23 03:40:18,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185430497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:18,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:40:18,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:40:18,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178186422] [2021-11-23 03:40:18,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:18,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:40:18,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:40:18,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:40:18,612 INFO L87 Difference]: Start difference. First operand 11692 states and 17383 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2021-11-23 03:40:20,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:29,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:33,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:36,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:38,953 INFO L93 Difference]: Finished difference Result 34518 states and 51328 transitions. [2021-11-23 03:40:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:40:38,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 815 [2021-11-23 03:40:38,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:39,158 INFO L225 Difference]: With dead ends: 34518 [2021-11-23 03:40:39,158 INFO L226 Difference]: Without dead ends: 22935 [2021-11-23 03:40:39,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:40:39,446 INFO L933 BasicCegarLoop]: 11506 mSDtfsCounter, 9899 mSDsluCounter, 10263 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9902 SdHoareTripleChecker+Valid, 20721 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:39,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9902 Valid, 20721 Invalid, 2153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2148 Invalid, 4 Unknown, 0 Unchecked, 19.4s Time] [2021-11-23 03:40:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22935 states. [2021-11-23 03:40:41,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22935 to 22919. [2021-11-23 03:40:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22919 states, 14532 states have (on average 1.3434489402697496) internal successors, (19523), 15023 states have internal predecessors, (19523), 7180 states have call successors, (7180), 1211 states have call predecessors, (7180), 1206 states have return successors, (7382), 6997 states have call predecessors, (7382), 7179 states have call successors, (7382) [2021-11-23 03:40:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22919 states to 22919 states and 34085 transitions. [2021-11-23 03:40:41,425 INFO L78 Accepts]: Start accepts. Automaton has 22919 states and 34085 transitions. Word has length 815 [2021-11-23 03:40:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:41,431 INFO L470 AbstractCegarLoop]: Abstraction has 22919 states and 34085 transitions. [2021-11-23 03:40:41,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2021-11-23 03:40:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 22919 states and 34085 transitions. [2021-11-23 03:40:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2021-11-23 03:40:41,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:41,547 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 16, 16, 16, 16, 16, 16, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:41,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:40:41,548 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:40:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash -738382137, now seen corresponding path program 1 times [2021-11-23 03:40:41,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:41,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455916669] [2021-11-23 03:40:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:41,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 8330 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8322 trivial. 0 not checked. [2021-11-23 03:40:42,733 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:42,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455916669] [2021-11-23 03:40:42,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455916669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:42,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:40:42,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:40:42,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795005920] [2021-11-23 03:40:42,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:42,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:40:42,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:42,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:40:42,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:40:42,737 INFO L87 Difference]: Start difference. First operand 22919 states and 34085 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 2 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2021-11-23 03:40:45,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:52,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:54,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:58,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:00,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:01,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:01,112 INFO L93 Difference]: Finished difference Result 45733 states and 68011 transitions. [2021-11-23 03:41:01,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:41:01,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 2 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 844 [2021-11-23 03:41:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:01,246 INFO L225 Difference]: With dead ends: 45733 [2021-11-23 03:41:01,246 INFO L226 Difference]: Without dead ends: 22919 [2021-11-23 03:41:01,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:41:01,350 INFO L933 BasicCegarLoop]: 9222 mSDtfsCounter, 0 mSDsluCounter, 10270 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18440 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:01,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18440 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2107 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2021-11-23 03:41:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22919 states. [2021-11-23 03:41:03,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22919 to 22919. [2021-11-23 03:41:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22919 states, 14532 states have (on average 1.343173685659235) internal successors, (19519), 15023 states have internal predecessors, (19519), 7180 states have call successors, (7180), 1211 states have call predecessors, (7180), 1206 states have return successors, (7382), 6997 states have call predecessors, (7382), 7179 states have call successors, (7382) [2021-11-23 03:41:03,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22919 states to 22919 states and 34081 transitions. [2021-11-23 03:41:03,249 INFO L78 Accepts]: Start accepts. Automaton has 22919 states and 34081 transitions. Word has length 844 [2021-11-23 03:41:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:03,250 INFO L470 AbstractCegarLoop]: Abstraction has 22919 states and 34081 transitions. [2021-11-23 03:41:03,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 2 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2021-11-23 03:41:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 22919 states and 34081 transitions. [2021-11-23 03:41:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2021-11-23 03:41:03,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:41:03,341 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 11, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:41:03,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:41:03,342 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:41:03,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:41:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash 376932137, now seen corresponding path program 1 times [2021-11-23 03:41:03,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:41:03,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856998095] [2021-11-23 03:41:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:03,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:41:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8062 trivial. 0 not checked. [2021-11-23 03:41:05,176 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:41:05,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856998095] [2021-11-23 03:41:05,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856998095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:41:05,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:41:05,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:41:05,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934567136] [2021-11-23 03:41:05,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:41:05,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:41:05,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:41:05,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:41:05,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:41:05,180 INFO L87 Difference]: Start difference. First operand 22919 states and 34081 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:41:07,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:15,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:17,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:20,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:24,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:24,655 INFO L93 Difference]: Finished difference Result 45733 states and 68172 transitions. [2021-11-23 03:41:24,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:41:24,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 898 [2021-11-23 03:41:24,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:24,803 INFO L225 Difference]: With dead ends: 45733 [2021-11-23 03:41:24,803 INFO L226 Difference]: Without dead ends: 22923 [2021-11-23 03:41:24,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:41:24,917 INFO L933 BasicCegarLoop]: 9221 mSDtfsCounter, 0 mSDsluCounter, 10270 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18440 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:24,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18440 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2104 Invalid, 5 Unknown, 0 Unchecked, 18.8s Time] [2021-11-23 03:41:25,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22923 states. [2021-11-23 03:41:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22923 to 22923. [2021-11-23 03:41:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22923 states, 14536 states have (on average 1.3430792515134837) internal successors, (19523), 15027 states have internal predecessors, (19523), 7180 states have call successors, (7180), 1211 states have call predecessors, (7180), 1206 states have return successors, (7382), 6997 states have call predecessors, (7382), 7179 states have call successors, (7382) [2021-11-23 03:41:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22923 states to 22923 states and 34085 transitions. [2021-11-23 03:41:26,967 INFO L78 Accepts]: Start accepts. Automaton has 22923 states and 34085 transitions. Word has length 898 [2021-11-23 03:41:26,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:26,969 INFO L470 AbstractCegarLoop]: Abstraction has 22923 states and 34085 transitions. [2021-11-23 03:41:26,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:41:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 22923 states and 34085 transitions. [2021-11-23 03:41:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2021-11-23 03:41:27,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:41:27,043 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 11, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:41:27,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:41:27,044 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:41:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:41:27,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1646558830, now seen corresponding path program 1 times [2021-11-23 03:41:27,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:41:27,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838668196] [2021-11-23 03:41:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:27,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:41:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 8063 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8062 trivial. 0 not checked. [2021-11-23 03:41:28,834 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:41:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838668196] [2021-11-23 03:41:28,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838668196] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:41:28,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720261317] [2021-11-23 03:41:28,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:28,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:41:28,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:41:28,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:41:28,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:41:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:33,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 15509 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:41:33,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:41:35,505 INFO L134 CoverageAnalysis]: Checked inductivity of 8063 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8063 trivial. 0 not checked. [2021-11-23 03:41:35,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:41:35,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720261317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:41:35,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:41:35,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 03:41:35,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582667887] [2021-11-23 03:41:35,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:41:35,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:41:35,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:41:35,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:41:35,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:41:35,510 INFO L87 Difference]: Start difference. First operand 22923 states and 34085 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:41:37,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:43,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:45,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:50,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:51,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:51,979 INFO L93 Difference]: Finished difference Result 51539 states and 76325 transitions. [2021-11-23 03:41:51,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:41:51,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 897 [2021-11-23 03:41:51,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:52,148 INFO L225 Difference]: With dead ends: 51539 [2021-11-23 03:41:52,149 INFO L226 Difference]: Without dead ends: 28725 [2021-11-23 03:41:52,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:41:52,232 INFO L933 BasicCegarLoop]: 10434 mSDtfsCounter, 9916 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9920 SdHoareTripleChecker+Valid, 15375 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:52,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9920 Valid, 15375 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1659 Invalid, 4 Unknown, 0 Unchecked, 15.6s Time] [2021-11-23 03:41:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28725 states. [2021-11-23 03:41:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28725 to 28711. [2021-11-23 03:41:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28711 states, 18037 states have (on average 1.334201918279093) internal successors, (24065), 18675 states have internal predecessors, (24065), 9031 states have call successors, (9031), 1646 states have call predecessors, (9031), 1642 states have return successors, (9284), 8778 states have call predecessors, (9284), 9030 states have call successors, (9284) [2021-11-23 03:41:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28711 states to 28711 states and 42380 transitions. [2021-11-23 03:41:54,720 INFO L78 Accepts]: Start accepts. Automaton has 28711 states and 42380 transitions. Word has length 897 [2021-11-23 03:41:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:54,722 INFO L470 AbstractCegarLoop]: Abstraction has 28711 states and 42380 transitions. [2021-11-23 03:41:54,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:41:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 28711 states and 42380 transitions. [2021-11-23 03:41:54,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2021-11-23 03:41:54,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:41:54,795 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 11, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:41:54,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:41:55,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:41:55,009 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:41:55,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:41:55,010 INFO L85 PathProgramCache]: Analyzing trace with hash 221519042, now seen corresponding path program 1 times [2021-11-23 03:41:55,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:41:55,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264614471] [2021-11-23 03:41:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:55,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:41:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:56,573 INFO L134 CoverageAnalysis]: Checked inductivity of 8063 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8062 trivial. 0 not checked. [2021-11-23 03:41:56,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:41:56,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264614471] [2021-11-23 03:41:56,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264614471] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:41:56,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650812233] [2021-11-23 03:41:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:56,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:41:56,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:41:56,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:41:56,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:42:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:00,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 15511 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:42:01,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:42:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8063 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8063 trivial. 0 not checked. [2021-11-23 03:42:02,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:42:02,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650812233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:02,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:42:02,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 03:42:02,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349737126] [2021-11-23 03:42:02,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:02,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:02,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:02,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:02,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:42:02,605 INFO L87 Difference]: Start difference. First operand 28711 states and 42380 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:42:04,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:10,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:13,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:17,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:18,475 INFO L93 Difference]: Finished difference Result 57307 states and 84590 transitions. [2021-11-23 03:42:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:42:18,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 898 [2021-11-23 03:42:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:18,618 INFO L225 Difference]: With dead ends: 57307 [2021-11-23 03:42:18,618 INFO L226 Difference]: Without dead ends: 28717 [2021-11-23 03:42:18,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 901 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:42:18,718 INFO L933 BasicCegarLoop]: 10430 mSDtfsCounter, 9911 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9915 SdHoareTripleChecker+Valid, 15371 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:18,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9915 Valid, 15371 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1659 Invalid, 4 Unknown, 0 Unchecked, 14.9s Time] [2021-11-23 03:42:18,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28717 states. [2021-11-23 03:42:20,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28717 to 28703. [2021-11-23 03:42:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28703 states, 18033 states have (on average 1.3340542339045085) internal successors, (24057), 18671 states have internal predecessors, (24057), 9027 states have call successors, (9027), 1646 states have call predecessors, (9027), 1642 states have return successors, (9278), 8774 states have call predecessors, (9278), 9026 states have call successors, (9278) [2021-11-23 03:42:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28703 states to 28703 states and 42362 transitions. [2021-11-23 03:42:20,934 INFO L78 Accepts]: Start accepts. Automaton has 28703 states and 42362 transitions. Word has length 898 [2021-11-23 03:42:20,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:20,935 INFO L470 AbstractCegarLoop]: Abstraction has 28703 states and 42362 transitions. [2021-11-23 03:42:20,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:42:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 28703 states and 42362 transitions. [2021-11-23 03:42:20,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2021-11-23 03:42:20,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:20,994 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 7, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:21,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:42:21,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 03:42:21,207 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:21,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash -404428845, now seen corresponding path program 1 times [2021-11-23 03:42:21,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:21,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570006774] [2021-11-23 03:42:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:21,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:22,517 INFO L134 CoverageAnalysis]: Checked inductivity of 7978 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7978 trivial. 0 not checked. [2021-11-23 03:42:22,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:22,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570006774] [2021-11-23 03:42:22,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570006774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:22,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:22,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:42:22,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569063264] [2021-11-23 03:42:22,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:22,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:22,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:22,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:22,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:22,521 INFO L87 Difference]: Start difference. First operand 28703 states and 42362 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2021-11-23 03:42:24,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:29,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:34,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:39,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:41,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:43,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:43,919 INFO L93 Difference]: Finished difference Result 76083 states and 112295 transitions. [2021-11-23 03:42:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:42:43,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 903 [2021-11-23 03:42:43,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:44,160 INFO L225 Difference]: With dead ends: 76083 [2021-11-23 03:42:44,160 INFO L226 Difference]: Without dead ends: 47501 [2021-11-23 03:42:44,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:44,528 INFO L933 BasicCegarLoop]: 11043 mSDtfsCounter, 8056 mSDsluCounter, 10147 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8056 SdHoareTripleChecker+Valid, 20141 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:44,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8056 Valid, 20141 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2250 Invalid, 4 Unknown, 0 Unchecked, 20.0s Time] [2021-11-23 03:42:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47501 states. [2021-11-23 03:42:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47501 to 47496. [2021-11-23 03:42:47,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47496 states, 30021 states have (on average 1.3383298357816196) internal successors, (40178), 31054 states have internal predecessors, (40178), 14753 states have call successors, (14753), 2726 states have call predecessors, (14753), 2721 states have return successors, (15169), 14331 states have call predecessors, (15169), 14752 states have call successors, (15169) [2021-11-23 03:42:47,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47496 states to 47496 states and 70100 transitions. [2021-11-23 03:42:47,305 INFO L78 Accepts]: Start accepts. Automaton has 47496 states and 70100 transitions. Word has length 903 [2021-11-23 03:42:47,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:47,306 INFO L470 AbstractCegarLoop]: Abstraction has 47496 states and 70100 transitions. [2021-11-23 03:42:47,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2021-11-23 03:42:47,308 INFO L276 IsEmpty]: Start isEmpty. Operand 47496 states and 70100 transitions. [2021-11-23 03:42:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2021-11-23 03:42:47,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:47,358 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 11, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:47,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:42:47,359 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:47,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1724040709, now seen corresponding path program 1 times [2021-11-23 03:42:47,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:47,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28070271] [2021-11-23 03:42:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:47,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:49,056 INFO L134 CoverageAnalysis]: Checked inductivity of 8063 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8062 trivial. 0 not checked. [2021-11-23 03:42:49,057 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:49,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28070271] [2021-11-23 03:42:49,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28070271] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:42:49,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758236799] [2021-11-23 03:42:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:49,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:42:49,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:42:49,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:42:49,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:42:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:53,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 15513 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:42:53,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:42:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8063 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8063 trivial. 0 not checked. [2021-11-23 03:42:55,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:42:55,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758236799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:55,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:42:55,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 03:42:55,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409094422] [2021-11-23 03:42:55,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:55,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:55,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:55,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:55,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:42:55,196 INFO L87 Difference]: Start difference. First operand 47496 states and 70100 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:42:57,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:02,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:05,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:10,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:11,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:11,498 INFO L93 Difference]: Finished difference Result 94869 states and 140016 transitions. [2021-11-23 03:43:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:43:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 899 [2021-11-23 03:43:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:11,700 INFO L225 Difference]: With dead ends: 94869 [2021-11-23 03:43:11,701 INFO L226 Difference]: Without dead ends: 47494 [2021-11-23 03:43:11,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 899 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:43:11,825 INFO L933 BasicCegarLoop]: 10426 mSDtfsCounter, 9906 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9910 SdHoareTripleChecker+Valid, 15367 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:11,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9910 Valid, 15367 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1659 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2021-11-23 03:43:11,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47494 states. [2021-11-23 03:43:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47494 to 47480. [2021-11-23 03:43:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47480 states, 30013 states have (on average 1.33815346683104) internal successors, (40162), 31046 states have internal predecessors, (40162), 14745 states have call successors, (14745), 2726 states have call predecessors, (14745), 2721 states have return successors, (15157), 14323 states have call predecessors, (15157), 14744 states have call successors, (15157) [2021-11-23 03:43:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47480 states to 47480 states and 70064 transitions. [2021-11-23 03:43:14,850 INFO L78 Accepts]: Start accepts. Automaton has 47480 states and 70064 transitions. Word has length 899 [2021-11-23 03:43:14,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:14,851 INFO L470 AbstractCegarLoop]: Abstraction has 47480 states and 70064 transitions. [2021-11-23 03:43:14,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:43:14,852 INFO L276 IsEmpty]: Start isEmpty. Operand 47480 states and 70064 transitions. [2021-11-23 03:43:14,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2021-11-23 03:43:14,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:14,904 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 16, 16, 16, 16, 16, 16, 11, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:14,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:43:15,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:15,131 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:15,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1974326731, now seen corresponding path program 1 times [2021-11-23 03:43:15,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:15,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856548960] [2021-11-23 03:43:15,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:15,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 8058 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8057 trivial. 0 not checked. [2021-11-23 03:43:16,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:16,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856548960] [2021-11-23 03:43:16,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856548960] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:43:16,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407306646] [2021-11-23 03:43:16,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:16,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:16,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:16,694 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:43:16,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:43:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:20,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 15199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:43:21,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:43:22,454 INFO L134 CoverageAnalysis]: Checked inductivity of 8058 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8058 trivial. 0 not checked. [2021-11-23 03:43:22,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:43:22,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407306646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:22,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:43:22,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 03:43:22,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372264457] [2021-11-23 03:43:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:22,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:43:22,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:43:22,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:43:22,458 INFO L87 Difference]: Start difference. First operand 47480 states and 70064 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:43:24,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:30,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:32,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:38,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:38,892 INFO L93 Difference]: Finished difference Result 94837 states and 139944 transitions. [2021-11-23 03:43:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:43:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 879 [2021-11-23 03:43:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:39,062 INFO L225 Difference]: With dead ends: 94837 [2021-11-23 03:43:39,062 INFO L226 Difference]: Without dead ends: 47478 [2021-11-23 03:43:39,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 879 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:43:39,175 INFO L933 BasicCegarLoop]: 10422 mSDtfsCounter, 9901 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9905 SdHoareTripleChecker+Valid, 15363 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:39,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9905 Valid, 15363 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1659 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2021-11-23 03:43:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47478 states. [2021-11-23 03:43:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47478 to 47464. [2021-11-23 03:43:41,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47464 states, 30005 states have (on average 1.3379770038326946) internal successors, (40146), 31038 states have internal predecessors, (40146), 14737 states have call successors, (14737), 2726 states have call predecessors, (14737), 2721 states have return successors, (15145), 14315 states have call predecessors, (15145), 14736 states have call successors, (15145) [2021-11-23 03:43:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47464 states to 47464 states and 70028 transitions. [2021-11-23 03:43:42,401 INFO L78 Accepts]: Start accepts. Automaton has 47464 states and 70028 transitions. Word has length 879 [2021-11-23 03:43:42,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:42,401 INFO L470 AbstractCegarLoop]: Abstraction has 47464 states and 70028 transitions. [2021-11-23 03:43:42,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 03:43:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 47464 states and 70028 transitions. [2021-11-23 03:43:42,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2021-11-23 03:43:42,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:42,477 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 16, 16, 16, 16, 16, 16, 11, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:42,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 03:43:42,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:42,691 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:42,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:42,691 INFO L85 PathProgramCache]: Analyzing trace with hash -152052450, now seen corresponding path program 1 times [2021-11-23 03:43:42,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:42,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097260997] [2021-11-23 03:43:42,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:42,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:43,109 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:43:43,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434976571] [2021-11-23 03:43:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:43,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:43,114 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:43:43,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:43:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:47,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 16149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:43:47,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:43:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8301 trivial. 0 not checked. [2021-11-23 03:43:49,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:43:49,288 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:49,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097260997] [2021-11-23 03:43:49,288 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:43:49,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434976571] [2021-11-23 03:43:49,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434976571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:49,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:49,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:43:49,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598683163] [2021-11-23 03:43:49,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:49,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:43:49,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:49,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:43:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:49,291 INFO L87 Difference]: Start difference. First operand 47464 states and 70028 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2021-11-23 03:43:51,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:56,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:58,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:04,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:06,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:44:07,255 INFO L93 Difference]: Finished difference Result 94821 states and 139891 transitions. [2021-11-23 03:44:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:44:07,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 989 [2021-11-23 03:44:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:44:07,459 INFO L225 Difference]: With dead ends: 94821 [2021-11-23 03:44:07,459 INFO L226 Difference]: Without dead ends: 47478 [2021-11-23 03:44:07,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 987 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:44:07,806 INFO L933 BasicCegarLoop]: 10420 mSDtfsCounter, 9911 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9913 SdHoareTripleChecker+Valid, 15361 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:44:07,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9913 Valid, 15361 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1660 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2021-11-23 03:44:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47478 states. [2021-11-23 03:44:10,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47478 to 47475. [2021-11-23 03:44:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47475 states, 30009 states have (on average 1.3377320137292146) internal successors, (40144), 31042 states have internal predecessors, (40144), 14740 states have call successors, (14740), 2729 states have call predecessors, (14740), 2725 states have return successors, (15144), 14319 states have call predecessors, (15144), 14739 states have call successors, (15144) [2021-11-23 03:44:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47475 states to 47475 states and 70028 transitions. [2021-11-23 03:44:11,087 INFO L78 Accepts]: Start accepts. Automaton has 47475 states and 70028 transitions. Word has length 989 [2021-11-23 03:44:11,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:44:11,088 INFO L470 AbstractCegarLoop]: Abstraction has 47475 states and 70028 transitions. [2021-11-23 03:44:11,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2021-11-23 03:44:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 47475 states and 70028 transitions. [2021-11-23 03:44:11,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2021-11-23 03:44:11,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:44:11,168 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 16, 16, 16, 16, 16, 16, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:44:11,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:44:11,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 03:44:11,395 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:44:11,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:44:11,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1632163895, now seen corresponding path program 1 times [2021-11-23 03:44:11,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:44:11,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477737140] [2021-11-23 03:44:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:44:11,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:44:11,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:44:11,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910698093] [2021-11-23 03:44:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:44:11,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:44:11,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:44:11,837 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:44:11,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:44:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:44:16,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 16120 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:44:16,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:44:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 8293 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8293 trivial. 0 not checked. [2021-11-23 03:44:18,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:44:18,109 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:44:18,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477737140] [2021-11-23 03:44:18,109 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:44:18,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910698093] [2021-11-23 03:44:18,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910698093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:44:18,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:44:18,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:44:18,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659340212] [2021-11-23 03:44:18,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:44:18,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:44:18,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:44:18,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:44:18,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:44:18,113 INFO L87 Difference]: Start difference. First operand 47475 states and 70028 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2021-11-23 03:44:20,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:25,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:28,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:34,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:35,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:44:35,356 INFO L93 Difference]: Finished difference Result 94816 states and 139855 transitions. [2021-11-23 03:44:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:44:35,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 990 [2021-11-23 03:44:35,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:44:35,675 INFO L225 Difference]: With dead ends: 94816 [2021-11-23 03:44:35,675 INFO L226 Difference]: Without dead ends: 47462 [2021-11-23 03:44:35,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 988 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:44:35,792 INFO L933 BasicCegarLoop]: 10414 mSDtfsCounter, 9898 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9902 SdHoareTripleChecker+Valid, 15355 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:44:35,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9902 Valid, 15355 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1659 Invalid, 4 Unknown, 0 Unchecked, 15.5s Time] [2021-11-23 03:44:35,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47462 states. [2021-11-23 03:44:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47462 to 47459. [2021-11-23 03:44:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47459 states, 30001 states have (on average 1.337555414819506) internal successors, (40128), 31034 states have internal predecessors, (40128), 14732 states have call successors, (14732), 2729 states have call predecessors, (14732), 2725 states have return successors, (15132), 14311 states have call predecessors, (15132), 14731 states have call successors, (15132) [2021-11-23 03:44:38,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47459 states to 47459 states and 69992 transitions. [2021-11-23 03:44:38,951 INFO L78 Accepts]: Start accepts. Automaton has 47459 states and 69992 transitions. Word has length 990 [2021-11-23 03:44:38,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:44:38,952 INFO L470 AbstractCegarLoop]: Abstraction has 47459 states and 69992 transitions. [2021-11-23 03:44:38,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2021-11-23 03:44:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 47459 states and 69992 transitions. [2021-11-23 03:44:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2021-11-23 03:44:39,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:44:39,027 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 16, 16, 16, 16, 16, 16, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:44:39,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:44:39,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 03:44:39,243 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:44:39,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:44:39,243 INFO L85 PathProgramCache]: Analyzing trace with hash 22413118, now seen corresponding path program 1 times [2021-11-23 03:44:39,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:44:39,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740999689] [2021-11-23 03:44:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:44:39,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:44:39,605 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:44:39,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527554948] [2021-11-23 03:44:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:44:39,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:44:39,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:44:39,609 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:44:39,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:44:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:44:44,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 15802 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:44:44,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:44:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8288 trivial. 0 not checked. [2021-11-23 03:44:45,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:44:45,540 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:44:45,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740999689] [2021-11-23 03:44:45,541 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:44:45,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527554948] [2021-11-23 03:44:45,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527554948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:44:45,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:44:45,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:44:45,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983423248] [2021-11-23 03:44:45,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:44:45,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:44:45,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:44:45,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:44:45,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:44:45,544 INFO L87 Difference]: Start difference. First operand 47459 states and 69992 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2021-11-23 03:44:47,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:52,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:55,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:01,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:02,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:45:02,221 INFO L93 Difference]: Finished difference Result 94784 states and 139783 transitions. [2021-11-23 03:45:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:45:02,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 968 [2021-11-23 03:45:02,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:45:02,534 INFO L225 Difference]: With dead ends: 94784 [2021-11-23 03:45:02,534 INFO L226 Difference]: Without dead ends: 47446 [2021-11-23 03:45:02,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 966 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:45:02,644 INFO L933 BasicCegarLoop]: 10410 mSDtfsCounter, 9895 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9899 SdHoareTripleChecker+Valid, 15351 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:45:02,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9899 Valid, 15351 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1659 Invalid, 4 Unknown, 0 Unchecked, 14.8s Time] [2021-11-23 03:45:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47446 states. [2021-11-23 03:45:05,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47446 to 47443. [2021-11-23 03:45:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47443 states, 29993 states have (on average 1.3373787217017303) internal successors, (40112), 31026 states have internal predecessors, (40112), 14724 states have call successors, (14724), 2729 states have call predecessors, (14724), 2725 states have return successors, (15120), 14303 states have call predecessors, (15120), 14723 states have call successors, (15120) [2021-11-23 03:45:05,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47443 states to 47443 states and 69956 transitions. [2021-11-23 03:45:05,771 INFO L78 Accepts]: Start accepts. Automaton has 47443 states and 69956 transitions. Word has length 968 [2021-11-23 03:45:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:45:05,772 INFO L470 AbstractCegarLoop]: Abstraction has 47443 states and 69956 transitions. [2021-11-23 03:45:05,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2021-11-23 03:45:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 47443 states and 69956 transitions. [2021-11-23 03:45:05,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2021-11-23 03:45:05,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:45:05,822 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 43, 43, 43, 26, 26, 26, 26, 26, 26, 11, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:45:05,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 03:45:06,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:45:06,023 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:45:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:45:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1127380688, now seen corresponding path program 1 times [2021-11-23 03:45:06,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:45:06,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736585875] [2021-11-23 03:45:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:06,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:45:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:45:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 11493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11493 trivial. 0 not checked. [2021-11-23 03:45:07,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:45:07,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736585875] [2021-11-23 03:45:07,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736585875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:45:07,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:45:07,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:45:07,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620776870] [2021-11-23 03:45:07,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:45:07,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:45:07,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:45:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:45:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:45:07,601 INFO L87 Difference]: Start difference. First operand 47443 states and 69956 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 2 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2021-11-23 03:45:09,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:16,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:19,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:26,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:45:29,142 INFO L93 Difference]: Finished difference Result 132071 states and 194597 transitions. [2021-11-23 03:45:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:45:29,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 2 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) Word has length 1052 [2021-11-23 03:45:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:45:29,444 INFO L225 Difference]: With dead ends: 132071 [2021-11-23 03:45:29,444 INFO L226 Difference]: Without dead ends: 84749 [2021-11-23 03:45:29,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:45:29,565 INFO L933 BasicCegarLoop]: 12838 mSDtfsCounter, 9585 mSDsluCounter, 10162 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9589 SdHoareTripleChecker+Valid, 21952 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:45:29,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9589 Valid, 21952 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2404 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2021-11-23 03:45:29,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84749 states. [2021-11-23 03:45:34,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84749 to 84714. [2021-11-23 03:45:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84714 states, 53692 states have (on average 1.3382626834537734) internal successors, (71854), 55495 states have internal predecessors, (71854), 26151 states have call successors, (26151), 4880 states have call predecessors, (26151), 4870 states have return successors, (26757), 25435 states have call predecessors, (26757), 26150 states have call successors, (26757) [2021-11-23 03:45:35,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84714 states to 84714 states and 124762 transitions. [2021-11-23 03:45:35,285 INFO L78 Accepts]: Start accepts. Automaton has 84714 states and 124762 transitions. Word has length 1052 [2021-11-23 03:45:35,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:45:35,286 INFO L470 AbstractCegarLoop]: Abstraction has 84714 states and 124762 transitions. [2021-11-23 03:45:35,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 2 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2021-11-23 03:45:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 84714 states and 124762 transitions. [2021-11-23 03:45:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2021-11-23 03:45:35,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:45:35,735 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 16, 16, 16, 16, 16, 16, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:45:35,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 03:45:35,735 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:45:35,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:45:35,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1412735388, now seen corresponding path program 1 times [2021-11-23 03:45:35,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:45:35,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075452975] [2021-11-23 03:45:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:35,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:45:36,079 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:45:36,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350568592] [2021-11-23 03:45:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:36,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:45:36,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:45:36,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:45:36,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229395c-1ed6-4ce8-837f-43014406927f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 03:45:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:45:40,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 15808 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:45:40,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:45:42,151 INFO L134 CoverageAnalysis]: Checked inductivity of 8288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8288 trivial. 0 not checked. [2021-11-23 03:45:42,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:45:42,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:45:42,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075452975] [2021-11-23 03:45:42,151 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:45:42,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350568592] [2021-11-23 03:45:42,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350568592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:45:42,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:45:42,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:45:42,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074633737] [2021-11-23 03:45:42,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:45:42,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:45:42,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:45:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:45:42,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:45:42,155 INFO L87 Difference]: Start difference. First operand 84714 states and 124762 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2021-11-23 03:45:44,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:49,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:56,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:59,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:00,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:46:00,801 INFO L93 Difference]: Finished difference Result 169082 states and 249007 transitions. [2021-11-23 03:46:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:46:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 971 [2021-11-23 03:46:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:46:01,305 INFO L225 Difference]: With dead ends: 169082 [2021-11-23 03:46:01,305 INFO L226 Difference]: Without dead ends: 84489 [2021-11-23 03:46:01,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 969 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:46:01,492 INFO L933 BasicCegarLoop]: 10409 mSDtfsCounter, 9888 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9892 SdHoareTripleChecker+Valid, 15350 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:46:01,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9892 Valid, 15350 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1660 Invalid, 4 Unknown, 0 Unchecked, 15.2s Time] [2021-11-23 03:46:01,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84489 states.