./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--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7 --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 a2abac310a27b5a5bcc59448f1c6a5bb002a25760bc50fe35981661b9f35339a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:49:28,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:49:28,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:49:28,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:49:28,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:49:28,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:49:28,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:49:28,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:49:28,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:49:28,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:49:28,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:49:28,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:49:28,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:49:28,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:49:28,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:49:28,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:49:28,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:49:28,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:49:28,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:49:28,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:49:28,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:49:28,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:49:28,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:49:28,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:49:28,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:49:28,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:49:28,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:49:28,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:49:28,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:49:28,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:49:28,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:49:28,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:49:28,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:49:28,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:49:28,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:49:28,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:49:28,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:49:28,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:49:28,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:49:28,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:49:28,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:49:28,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:49:28,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:49:28,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:49:28,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:49:28,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:49:28,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:49:28,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:49:28,594 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:49:28,594 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:49:28,595 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:49:28,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:49:28,595 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:49:28,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:49:28,596 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:49:28,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:49:28,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:49:28,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:49:28,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:49:28,597 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:49:28,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:49:28,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:49:28,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:49:28,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:49:28,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:49:28,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:49:28,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:49:28,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:49:28,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:49:28,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:49:28,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:49:28,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:49:28,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:49:28,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:49:28,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:49:28,606 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:49:28,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:49:28,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:49:28,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:49:28,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:49:28,607 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_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2abac310a27b5a5bcc59448f1c6a5bb002a25760bc50fe35981661b9f35339a [2021-11-25 18:49:28,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:49:28,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:49:28,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:49:28,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:49:28,907 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:49:28,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-25 18:49:28,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/data/12693e53a/aed2ab82ff4a4d1fa2a5b1816ba8761d/FLAGb5fab77fa [2021-11-25 18:49:30,080 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:49:30,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-25 18:49:30,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/data/12693e53a/aed2ab82ff4a4d1fa2a5b1816ba8761d/FLAGb5fab77fa [2021-11-25 18:49:30,295 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/data/12693e53a/aed2ab82ff4a4d1fa2a5b1816ba8761d [2021-11-25 18:49:30,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:49:30,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:49:30,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:49:30,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:49:30,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:49:30,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:49:30" (1/1) ... [2021-11-25 18:49:30,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7643c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:30, skipping insertion in model container [2021-11-25 18:49:30,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:49:30" (1/1) ... [2021-11-25 18:49:30,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:49:30,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:49:37,756 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_da203514-df60-467c-b2cb-b817d5db859e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[600803,600816] [2021-11-25 18:49:37,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:49:37,964 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:49:38,654 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_da203514-df60-467c-b2cb-b817d5db859e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[600803,600816] [2021-11-25 18:49:38,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:49:39,084 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:49:39,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39 WrapperNode [2021-11-25 18:49:39,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:49:39,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:49:39,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:49:39,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:49:39,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:39,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:39,927 INFO L137 Inliner]: procedures = 678, calls = 7466, calls flagged for inlining = 299, calls inlined = 290, statements flattened = 15393 [2021-11-25 18:49:39,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:49:39,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:49:39,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:49:39,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:49:39,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:39,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:40,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:40,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:40,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:40,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:40,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:40,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:49:40,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:49:40,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:49:40,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:49:40,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (1/1) ... [2021-11-25 18:49:40,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:49:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:49:40,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:49:40,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da203514-df60-467c-b2cb-b817d5db859e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:49:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 18:49:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 18:49:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-25 18:49:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-25 18:49:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-25 18:49:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:49:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:49:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 18:49:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 18:49:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-25 18:49:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-25 18:49:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-25 18:49:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-25 18:49:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-25 18:49:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-25 18:49:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-25 18:49:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-25 18:49:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-25 18:49:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-25 18:49:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:49:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:49:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-25 18:49:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-25 18:49:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-25 18:49:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-25 18:49:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-25 18:49:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-25 18:49:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-25 18:49:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-25 18:49:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 18:49:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 18:49:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-25 18:49:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-25 18:49:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_port_cfg_work [2021-11-25 18:49:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_port_cfg_work [2021-11-25 18:49:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-25 18:49:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-25 18:49:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-25 18:49:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-25 18:49:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_6 [2021-11-25 18:49:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_6 [2021-11-25 18:49:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 18:49:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 18:49:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-25 18:49:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-25 18:49:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:49:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:49:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 18:49:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 18:49:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 18:49:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 18:49:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-25 18:49:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-25 18:49:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2021-11-25 18:49:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2021-11-25 18:49:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:49:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:49:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-25 18:49:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-25 18:49:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-25 18:49:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-25 18:49:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-25 18:49:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-25 18:49:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-25 18:49:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-25 18:49:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-25 18:49:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-25 18:49:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-25 18:49:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-25 18:49:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 18:49:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 18:49:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-25 18:49:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-25 18:49:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:49:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:49:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 18:49:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 18:49:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-25 18:49:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-25 18:49:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 18:49:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 18:49:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-25 18:49:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-25 18:49:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-25 18:49:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-25 18:49:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 18:49:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 18:49:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 18:49:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 18:49:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:49:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 18:49:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 18:49:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-25 18:49:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-25 18:49:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-25 18:49:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-25 18:49:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-25 18:49:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-25 18:49:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-25 18:49:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-25 18:49:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-25 18:49:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-25 18:49:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-25 18:49:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-25 18:49:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 18:49:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 18:49:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-25 18:49:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-25 18:49:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-25 18:49:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-25 18:49:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-25 18:49:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-25 18:49:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:49:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:49:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-25 18:49:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-25 18:49:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 18:49:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 18:49:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-25 18:49:40,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-25 18:49:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 18:49:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 18:49:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:49:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-25 18:49:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-25 18:49:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 18:49:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 18:49:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:49:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:49:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:49:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:49:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-25 18:49:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-25 18:49:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_idc_work [2021-11-25 18:49:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_idc_work [2021-11-25 18:49:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-25 18:49:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-25 18:49:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-25 18:49:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-25 18:49:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:49:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-25 18:49:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-25 18:49:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-25 18:49:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-25 18:49:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:49:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:49:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:49:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-25 18:49:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-25 18:49:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-11-25 18:49:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-11-25 18:49:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_10 [2021-11-25 18:49:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_10 [2021-11-25 18:49:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:49:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:49:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 18:49:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 18:49:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-25 18:49:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-25 18:49:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-25 18:49:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-25 18:49:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:49:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:49:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-25 18:49:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-25 18:49:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 18:49:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 18:49:40,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 18:49:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 18:49:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-25 18:49:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-25 18:49:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-25 18:49:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-25 18:49:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 18:49:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 18:49:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:49:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:49:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-25 18:49:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-25 18:49:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-25 18:49:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-25 18:49:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure ql_asic_reset_work [2021-11-25 18:49:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_asic_reset_work [2021-11-25 18:49:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-25 18:49:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-25 18:49:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-25 18:49:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-25 18:49:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:49:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-25 18:49:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-25 18:49:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-25 18:49:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-25 18:49:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-25 18:49:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-25 18:49:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-25 18:49:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:49:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 18:49:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 18:49:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2021-11-25 18:49:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2021-11-25 18:49:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:49:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:49:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:49:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:49:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-25 18:49:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-25 18:49:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-25 18:49:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-25 18:49:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-25 18:49:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-25 18:49:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:49:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:49:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2021-11-25 18:49:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2021-11-25 18:49:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2021-11-25 18:49:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2021-11-25 18:49:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 18:49:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 18:49:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-25 18:49:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-25 18:49:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 18:49:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 18:49:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-25 18:49:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-25 18:49:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-25 18:49:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-25 18:49:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 18:49:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 18:49:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-25 18:49:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-25 18:49:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 18:49:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 18:49:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-25 18:49:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-25 18:49:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 18:49:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 18:49:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 18:49:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 18:49:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-25 18:49:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-25 18:49:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-25 18:49:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-25 18:49:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-25 18:49:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-25 18:49:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-25 18:49:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-25 18:49:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 18:49:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 18:49:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 18:49:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 18:49:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_core_to_log [2021-11-25 18:49:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_core_to_log [2021-11-25 18:49:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2021-11-25 18:49:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2021-11-25 18:49:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:49:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:49:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-25 18:49:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-25 18:49:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 18:49:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 18:49:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-25 18:49:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-25 18:49:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-25 18:49:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-25 18:49:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 18:49:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 18:49:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-25 18:49:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-25 18:49:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:49:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:49:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:49:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:49:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-25 18:49:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-25 18:49:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 18:49:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 18:49:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 18:49:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 18:49:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-25 18:49:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-25 18:49:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-25 18:49:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-25 18:49:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 18:49:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 18:49:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 18:49:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 18:49:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-25 18:49:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-25 18:49:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_idc_ack [2021-11-25 18:49:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_idc_ack [2021-11-25 18:49:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 18:49:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-25 18:49:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-25 18:49:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 18:49:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 18:49:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 18:49:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 18:49:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-25 18:49:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-25 18:49:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-25 18:49:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-25 18:49:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-25 18:49:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-25 18:49:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-25 18:49:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-25 18:49:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-25 18:49:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-25 18:49:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 18:49:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 18:49:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 18:49:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 18:49:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-25 18:49:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-25 18:49:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 18:49:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 18:49:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-25 18:49:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-25 18:49:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-25 18:49:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-25 18:49:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 18:49:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 18:49:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:49:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:49:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-11-25 18:49:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-11-25 18:49:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-25 18:49:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-25 18:49:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 18:49:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 18:49:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-25 18:49:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-25 18:49:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 18:49:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 18:49:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-25 18:49:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-25 18:49:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-25 18:49:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-25 18:49:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 18:49:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 18:49:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-25 18:49:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-25 18:49:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 18:49:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 18:49:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2021-11-25 18:49:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2021-11-25 18:49:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:49:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 18:49:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 18:49:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-25 18:49:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-25 18:49:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 18:49:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 18:49:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-25 18:49:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-25 18:49:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 18:49:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 18:49:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2021-11-25 18:49:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2021-11-25 18:49:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-25 18:49:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-25 18:49:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_6 [2021-11-25 18:49:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_6 [2021-11-25 18:49:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:49:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-25 18:49:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-25 18:49:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-25 18:49:40,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-25 18:49:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-25 18:49:40,929 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-25 18:49:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-25 18:49:40,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-25 18:49:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-25 18:49:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-25 18:49:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 18:49:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 18:49:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:49:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_6 [2021-11-25 18:49:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_6 [2021-11-25 18:49:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-25 18:49:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-25 18:49:40,931 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-25 18:49:40,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-25 18:49:40,931 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 18:49:40,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 18:49:40,931 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-25 18:49:40,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-25 18:49:40,931 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 18:49:40,932 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 18:49:40,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:49:40,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:49:40,932 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 18:49:40,932 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 18:49:40,932 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-25 18:49:40,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-25 18:49:40,933 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-25 18:49:40,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-25 18:49:40,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-25 18:49:40,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-25 18:49:40,933 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-25 18:49:40,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-25 18:49:40,933 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-25 18:49:40,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-25 18:49:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 18:49:40,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 18:49:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:49:40,934 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:49:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 18:49:40,934 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 18:49:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-25 18:49:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-25 18:49:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-25 18:49:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-25 18:49:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-25 18:49:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-25 18:49:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-25 18:49:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-25 18:49:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:49:40,936 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:49:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 18:49:40,936 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 18:49:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-25 18:49:40,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-25 18:49:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:49:40,936 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:49:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-25 18:49:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-25 18:49:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2021-11-25 18:49:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2021-11-25 18:49:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:49:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-25 18:49:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-25 18:49:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-25 18:49:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-25 18:49:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:49:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:49:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2021-11-25 18:49:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2021-11-25 18:49:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2021-11-25 18:49:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2021-11-25 18:49:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-25 18:49:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-25 18:49:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-25 18:49:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-25 18:49:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 18:49:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 18:49:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-25 18:49:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-25 18:49:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-25 18:49:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-25 18:49:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 18:49:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 18:49:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-25 18:49:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-25 18:49:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-25 18:49:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-25 18:49:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 18:49:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 18:49:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 18:49:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 18:49:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-25 18:49:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-25 18:49:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-25 18:49:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-25 18:49:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-25 18:49:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-25 18:49:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-25 18:49:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-25 18:49:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 18:49:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 18:49:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 18:49:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 18:49:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_work [2021-11-25 18:49:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_work [2021-11-25 18:49:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-25 18:49:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-25 18:49:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2021-11-25 18:49:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2021-11-25 18:49:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_6 [2021-11-25 18:49:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_6 [2021-11-25 18:49:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-25 18:49:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-25 18:49:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-25 18:49:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-25 18:49:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-25 18:49:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-25 18:49:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 18:49:40,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 18:49:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-25 18:49:40,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-25 18:49:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 18:49:40,945 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 18:49:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-25 18:49:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-25 18:49:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-25 18:49:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-25 18:49:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-25 18:49:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-25 18:49:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-25 18:49:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-25 18:49:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 18:49:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 18:49:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 18:49:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 18:49:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_reset_work [2021-11-25 18:49:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_reset_work [2021-11-25 18:49:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:49:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-25 18:49:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-25 18:49:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-25 18:49:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-25 18:49:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-25 18:49:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-25 18:49:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-25 18:49:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-25 18:49:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-25 18:49:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-25 18:49:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-25 18:49:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-25 18:49:42,511 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:49:42,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:49:42,606 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:50:04,132 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:50:11,059 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:50:11,059 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:50:11,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:50:11 BoogieIcfgContainer [2021-11-25 18:50:11,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:50:11,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:50:11,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:50:11,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:50:11,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:49:30" (1/3) ... [2021-11-25 18:50:11,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8b58bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:50:11, skipping insertion in model container [2021-11-25 18:50:11,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:39" (2/3) ... [2021-11-25 18:50:11,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8b58bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:50:11, skipping insertion in model container [2021-11-25 18:50:11,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:50:11" (3/3) ... [2021-11-25 18:50:11,080 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-25 18:50:11,087 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:50:11,087 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:50:11,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:50:11,183 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 [2021-11-25 18:50:11,183 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:50:11,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 4001 states, 2459 states have (on average 1.3452623017486782) internal successors, (3308), 2546 states have internal predecessors, (3308), 1292 states have call successors, (1292), 249 states have call predecessors, (1292), 248 states have return successors, (1276), 1262 states have call predecessors, (1276), 1276 states have call successors, (1276) [2021-11-25 18:50:11,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-25 18:50:11,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:50:11,342 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:50:11,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:50:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:50:11,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1904800613, now seen corresponding path program 1 times [2021-11-25 18:50:11,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:50:11,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889854324] [2021-11-25 18:50:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:50:11,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:50:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:50:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-25 18:50:12,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:50:12,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889854324] [2021-11-25 18:50:12,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889854324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:50:12,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:50:12,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:50:12,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986294894] [2021-11-25 18:50:12,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:50:12,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:50:12,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:50:12,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:50:12,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:50:12,660 INFO L87 Difference]: Start difference. First operand has 4001 states, 2459 states have (on average 1.3452623017486782) internal successors, (3308), 2546 states have internal predecessors, (3308), 1292 states have call successors, (1292), 249 states have call predecessors, (1292), 248 states have return successors, (1276), 1262 states have call predecessors, (1276), 1276 states have call successors, (1276) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:50:14,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:17,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:19,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:50:23,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:26,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:27,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:29,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:31,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:40,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:41,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:50:41,001 INFO L93 Difference]: Finished difference Result 11672 states and 17207 transitions. [2021-11-25 18:50:41,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:50:41,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2021-11-25 18:50:41,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:50:41,118 INFO L225 Difference]: With dead ends: 11672 [2021-11-25 18:50:41,118 INFO L226 Difference]: Without dead ends: 7643 [2021-11-25 18:50:41,160 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 [2021-11-25 18:50:41,169 INFO L933 BasicCegarLoop]: 7109 mSDtfsCounter, 5413 mSDsluCounter, 5749 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5416 SdHoareTripleChecker+Valid, 12205 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:50:41,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5416 Valid, 12205 Invalid, 1587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1574 Invalid, 6 Unknown, 0 Unchecked, 27.7s Time] [2021-11-25 18:50:41,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2021-11-25 18:50:41,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 7635. [2021-11-25 18:50:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7635 states, 4694 states have (on average 1.334043459735833) internal successors, (6262), 4837 states have internal predecessors, (6262), 2455 states have call successors, (2455), 487 states have call predecessors, (2455), 485 states have return successors, (2456), 2418 states have call predecessors, (2456), 2453 states have call successors, (2456) [2021-11-25 18:50:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7635 states to 7635 states and 11173 transitions. [2021-11-25 18:50:41,844 INFO L78 Accepts]: Start accepts. Automaton has 7635 states and 11173 transitions. Word has length 184 [2021-11-25 18:50:41,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:50:41,848 INFO L470 AbstractCegarLoop]: Abstraction has 7635 states and 11173 transitions. [2021-11-25 18:50:41,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:50:41,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7635 states and 11173 transitions. [2021-11-25 18:50:41,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-25 18:50:41,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:50:41,869 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 18:50:41,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:50:41,870 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:50:41,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:50:41,872 INFO L85 PathProgramCache]: Analyzing trace with hash -694694640, now seen corresponding path program 1 times [2021-11-25 18:50:41,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:50:41,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413715306] [2021-11-25 18:50:41,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:50:41,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:50:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:50:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-25 18:50:42,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:50:42,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413715306] [2021-11-25 18:50:42,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413715306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:50:42,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:50:42,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:50:42,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230409332] [2021-11-25 18:50:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:50:42,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:50:42,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:50:42,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:50:42,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:50:42,891 INFO L87 Difference]: Start difference. First operand 7635 states and 11173 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 18:50:45,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:47,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:50,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:50:52,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:54,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:56,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:59,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:01,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:51:06,796 INFO L93 Difference]: Finished difference Result 22588 states and 33037 transitions. [2021-11-25 18:51:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:51:06,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 206 [2021-11-25 18:51:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:51:06,946 INFO L225 Difference]: With dead ends: 22588 [2021-11-25 18:51:06,946 INFO L226 Difference]: Without dead ends: 14978 [2021-11-25 18:51:07,001 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 [2021-11-25 18:51:07,004 INFO L933 BasicCegarLoop]: 6675 mSDtfsCounter, 5547 mSDsluCounter, 5784 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5552 SdHoareTripleChecker+Valid, 11805 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:51:07,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5552 Valid, 11805 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1403 Invalid, 5 Unknown, 0 Unchecked, 23.2s Time] [2021-11-25 18:51:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14978 states. [2021-11-25 18:51:07,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14978 to 14969. [2021-11-25 18:51:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14969 states, 9208 states have (on average 1.3341659426585577) internal successors, (12285), 9494 states have internal predecessors, (12285), 4798 states have call successors, (4798), 965 states have call predecessors, (4798), 962 states have return successors, (4808), 4721 states have call predecessors, (4808), 4796 states have call successors, (4808) [2021-11-25 18:51:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14969 states to 14969 states and 21891 transitions. [2021-11-25 18:51:07,993 INFO L78 Accepts]: Start accepts. Automaton has 14969 states and 21891 transitions. Word has length 206 [2021-11-25 18:51:07,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:51:07,996 INFO L470 AbstractCegarLoop]: Abstraction has 14969 states and 21891 transitions. [2021-11-25 18:51:07,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 18:51:07,998 INFO L276 IsEmpty]: Start isEmpty. Operand 14969 states and 21891 transitions. [2021-11-25 18:51:08,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-25 18:51:08,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:51:08,020 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 18:51:08,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:51:08,020 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:51:08,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:51:08,021 INFO L85 PathProgramCache]: Analyzing trace with hash 553157933, now seen corresponding path program 1 times [2021-11-25 18:51:08,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:51:08,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754163969] [2021-11-25 18:51:08,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:51:08,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:51:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:51:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-25 18:51:09,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:51:09,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754163969] [2021-11-25 18:51:09,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754163969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:51:09,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:51:09,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:51:09,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680846115] [2021-11-25 18:51:09,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:51:09,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:51:09,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:51:09,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:51:09,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:51:09,146 INFO L87 Difference]: Start difference. First operand 14969 states and 21891 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 18:51:11,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:13,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:17,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:51:21,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:22,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:29,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:51:29,624 INFO L93 Difference]: Finished difference Result 43567 states and 63706 transitions. [2021-11-25 18:51:29,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:51:29,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 223 [2021-11-25 18:51:29,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:51:29,817 INFO L225 Difference]: With dead ends: 43567 [2021-11-25 18:51:29,818 INFO L226 Difference]: Without dead ends: 28623 [2021-11-25 18:51:29,912 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 [2021-11-25 18:51:29,913 INFO L933 BasicCegarLoop]: 7833 mSDtfsCounter, 5254 mSDsluCounter, 5767 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5258 SdHoareTripleChecker+Valid, 12952 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:51:29,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5258 Valid, 12952 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1599 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2021-11-25 18:51:29,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28623 states. [2021-11-25 18:51:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28623 to 28619. [2021-11-25 18:51:31,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28619 states, 17642 states have (on average 1.334939349280127) internal successors, (23551), 18174 states have internal predecessors, (23551), 9136 states have call successors, (9136), 1843 states have call predecessors, (9136), 1840 states have return successors, (9158), 9001 states have call predecessors, (9158), 9134 states have call successors, (9158) [2021-11-25 18:51:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28619 states to 28619 states and 41845 transitions. [2021-11-25 18:51:31,627 INFO L78 Accepts]: Start accepts. Automaton has 28619 states and 41845 transitions. Word has length 223 [2021-11-25 18:51:31,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:51:31,628 INFO L470 AbstractCegarLoop]: Abstraction has 28619 states and 41845 transitions. [2021-11-25 18:51:31,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 18:51:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 28619 states and 41845 transitions. [2021-11-25 18:51:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-25 18:51:31,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:51:31,664 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-25 18:51:31,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:51:31,665 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:51:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:51:31,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1541065427, now seen corresponding path program 1 times [2021-11-25 18:51:31,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:51:31,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43837181] [2021-11-25 18:51:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:51:31,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:51:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:51:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-11-25 18:51:32,476 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:51:32,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43837181] [2021-11-25 18:51:32,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43837181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:51:32,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:51:32,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:51:32,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788073430] [2021-11-25 18:51:32,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:51:32,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:51:32,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:51:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:51:32,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:51:32,478 INFO L87 Difference]: Start difference. First operand 28619 states and 41845 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-25 18:51:34,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:37,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:42,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:44,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:51,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:51:51,145 INFO L93 Difference]: Finished difference Result 71067 states and 103216 transitions. [2021-11-25 18:51:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:51:51,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 253 [2021-11-25 18:51:51,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:51:51,512 INFO L225 Difference]: With dead ends: 71067 [2021-11-25 18:51:51,512 INFO L226 Difference]: Without dead ends: 42473 [2021-11-25 18:51:51,617 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 [2021-11-25 18:51:51,620 INFO L933 BasicCegarLoop]: 8441 mSDtfsCounter, 5741 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 12665 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:51:51,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5744 Valid, 12665 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1606 Invalid, 4 Unknown, 0 Unchecked, 17.3s Time] [2021-11-25 18:51:51,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42473 states. [2021-11-25 18:51:53,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42473 to 42469. [2021-11-25 18:51:53,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42469 states, 26154 states have (on average 1.3265657260839643) internal successors, (34695), 26951 states have internal predecessors, (34695), 13329 states have call successors, (13329), 2986 states have call predecessors, (13329), 2985 states have return successors, (13377), 13138 states have call predecessors, (13377), 13327 states have call successors, (13377) [2021-11-25 18:51:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42469 states to 42469 states and 61401 transitions. [2021-11-25 18:51:54,277 INFO L78 Accepts]: Start accepts. Automaton has 42469 states and 61401 transitions. Word has length 253 [2021-11-25 18:51:54,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:51:54,279 INFO L470 AbstractCegarLoop]: Abstraction has 42469 states and 61401 transitions. [2021-11-25 18:51:54,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-25 18:51:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 42469 states and 61401 transitions. [2021-11-25 18:51:54,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-25 18:51:54,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:51:54,320 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2021-11-25 18:51:54,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:51:54,321 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:51:54,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:51:54,321 INFO L85 PathProgramCache]: Analyzing trace with hash -996686728, now seen corresponding path program 1 times [2021-11-25 18:51:54,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:51:54,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986132010] [2021-11-25 18:51:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:51:54,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:51:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:51:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2021-11-25 18:51:55,209 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:51:55,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986132010] [2021-11-25 18:51:55,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986132010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:51:55,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:51:55,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:51:55,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159270328] [2021-11-25 18:51:55,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:51:55,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:51:55,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:51:55,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:51:55,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:51:55,212 INFO L87 Difference]: Start difference. First operand 42469 states and 61401 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-25 18:51:57,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:00,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:02,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:03,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:05,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:09,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:13,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:16,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:24,817 INFO L93 Difference]: Finished difference Result 103645 states and 149703 transitions. [2021-11-25 18:52:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:52:24,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 314 [2021-11-25 18:52:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:25,329 INFO L225 Difference]: With dead ends: 103645 [2021-11-25 18:52:25,329 INFO L226 Difference]: Without dead ends: 62936 [2021-11-25 18:52:25,492 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 [2021-11-25 18:52:25,494 INFO L933 BasicCegarLoop]: 9939 mSDtfsCounter, 5675 mSDsluCounter, 5763 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5678 SdHoareTripleChecker+Valid, 15049 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:25,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5678 Valid, 15049 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1950 Invalid, 5 Unknown, 0 Unchecked, 27.6s Time] [2021-11-25 18:52:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62936 states. [2021-11-25 18:52:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62936 to 62922. [2021-11-25 18:52:28,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62922 states, 38757 states have (on average 1.3258250122558506) internal successors, (51385), 39938 states have internal predecessors, (51385), 19720 states have call successors, (19720), 4446 states have call predecessors, (19720), 4444 states have return successors, (19790), 19436 states have call predecessors, (19790), 19718 states have call successors, (19790) [2021-11-25 18:52:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62922 states to 62922 states and 90895 transitions. [2021-11-25 18:52:29,059 INFO L78 Accepts]: Start accepts. Automaton has 62922 states and 90895 transitions. Word has length 314 [2021-11-25 18:52:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:29,064 INFO L470 AbstractCegarLoop]: Abstraction has 62922 states and 90895 transitions. [2021-11-25 18:52:29,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-25 18:52:29,064 INFO L276 IsEmpty]: Start isEmpty. Operand 62922 states and 90895 transitions. [2021-11-25 18:52:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-25 18:52:29,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:29,125 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2021-11-25 18:52:29,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:52:29,126 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:52:29,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:29,127 INFO L85 PathProgramCache]: Analyzing trace with hash 175412906, now seen corresponding path program 1 times [2021-11-25 18:52:29,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:29,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767067898] [2021-11-25 18:52:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:29,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:29,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2021-11-25 18:52:29,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:29,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767067898] [2021-11-25 18:52:29,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767067898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:29,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:29,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:52:29,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834505796] [2021-11-25 18:52:29,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:29,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:52:29,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:29,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:52:29,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:52:29,882 INFO L87 Difference]: Start difference. First operand 62922 states and 90895 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-25 18:52:32,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:34,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:37,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:39,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:45,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:47,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:51,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:57,968 INFO L93 Difference]: Finished difference Result 177160 states and 255406 transitions. [2021-11-25 18:52:57,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:52:57,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 371 [2021-11-25 18:52:57,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:58,847 INFO L225 Difference]: With dead ends: 177160 [2021-11-25 18:52:58,847 INFO L226 Difference]: Without dead ends: 114273 [2021-11-25 18:52:59,024 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 [2021-11-25 18:52:59,025 INFO L933 BasicCegarLoop]: 7312 mSDtfsCounter, 4789 mSDsluCounter, 5763 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 12430 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:59,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4795 Valid, 12430 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1563 Invalid, 6 Unknown, 0 Unchecked, 25.1s Time] [2021-11-25 18:52:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114273 states. [2021-11-25 18:53:02,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114273 to 114261. [2021-11-25 18:53:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114261 states, 70488 states have (on average 1.3266229712858926) internal successors, (93511), 72561 states have internal predecessors, (93511), 35436 states have call successors, (35436), 8341 states have call predecessors, (35436), 8336 states have return successors, (35588), 34964 states have call predecessors, (35588), 35434 states have call successors, (35588) [2021-11-25 18:53:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114261 states to 114261 states and 164535 transitions. [2021-11-25 18:53:04,362 INFO L78 Accepts]: Start accepts. Automaton has 114261 states and 164535 transitions. Word has length 371 [2021-11-25 18:53:04,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:53:04,363 INFO L470 AbstractCegarLoop]: Abstraction has 114261 states and 164535 transitions. [2021-11-25 18:53:04,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-25 18:53:04,364 INFO L276 IsEmpty]: Start isEmpty. Operand 114261 states and 164535 transitions. [2021-11-25 18:53:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-25 18:53:04,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:04,496 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 18:53:04,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:53:04,496 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:53:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:04,497 INFO L85 PathProgramCache]: Analyzing trace with hash 773033506, now seen corresponding path program 1 times [2021-11-25 18:53:04,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:04,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559742820] [2021-11-25 18:53:04,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:04,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-11-25 18:53:05,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:05,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559742820] [2021-11-25 18:53:05,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559742820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:05,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:05,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:53:05,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836894249] [2021-11-25 18:53:05,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:05,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:53:05,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:05,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:53:05,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:53:05,172 INFO L87 Difference]: Start difference. First operand 114261 states and 164535 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 18:53:07,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:10,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:13,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:53:19,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:21,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:22,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:24,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:53:35,258 INFO L93 Difference]: Finished difference Result 228871 states and 332979 transitions. [2021-11-25 18:53:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:53:35,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 335 [2021-11-25 18:53:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:53:36,313 INFO L225 Difference]: With dead ends: 228871 [2021-11-25 18:53:36,313 INFO L226 Difference]: Without dead ends: 114645 [2021-11-25 18:53:36,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:53:36,693 INFO L933 BasicCegarLoop]: 5160 mSDtfsCounter, 5 mSDsluCounter, 17440 mSDsCounter, 0 mSdLazyCounter, 2645 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20627 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2645 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:53:36,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 20627 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2645 Invalid, 5 Unknown, 0 Unchecked, 26.5s Time] [2021-11-25 18:53:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114645 states. [2021-11-25 18:53:40,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114645 to 114453. [2021-11-25 18:53:41,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114453 states, 70632 states have (on average 1.3259570732812322) internal successors, (93655), 72705 states have internal predecessors, (93655), 35436 states have call successors, (35436), 8341 states have call predecessors, (35436), 8384 states have return successors, (36264), 35012 states have call predecessors, (36264), 35434 states have call successors, (36264) [2021-11-25 18:53:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114453 states to 114453 states and 165355 transitions. [2021-11-25 18:53:42,257 INFO L78 Accepts]: Start accepts. Automaton has 114453 states and 165355 transitions. Word has length 335 [2021-11-25 18:53:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:53:42,258 INFO L470 AbstractCegarLoop]: Abstraction has 114453 states and 165355 transitions. [2021-11-25 18:53:42,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 18:53:42,259 INFO L276 IsEmpty]: Start isEmpty. Operand 114453 states and 165355 transitions. [2021-11-25 18:53:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-11-25 18:53:42,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:42,320 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-25 18:53:42,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:53:42,320 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:53:42,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:42,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1387705659, now seen corresponding path program 1 times [2021-11-25 18:53:42,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:42,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819451918] [2021-11-25 18:53:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:42,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2021-11-25 18:53:42,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:42,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819451918] [2021-11-25 18:53:42,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819451918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:42,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:42,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:53:42,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441751369] [2021-11-25 18:53:42,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:42,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:53:42,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:42,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:53:42,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:53:42,927 INFO L87 Difference]: Start difference. First operand 114453 states and 165355 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-25 18:53:45,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:48,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:51,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:53:55,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:56,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:58,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:01,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:07,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:07,674 INFO L93 Difference]: Finished difference Result 238734 states and 346980 transitions. [2021-11-25 18:54:07,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:54:07,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 331 [2021-11-25 18:54:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:08,650 INFO L225 Difference]: With dead ends: 238734 [2021-11-25 18:54:08,650 INFO L226 Difference]: Without dead ends: 125187 [2021-11-25 18:54:08,945 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 [2021-11-25 18:54:08,946 INFO L933 BasicCegarLoop]: 6101 mSDtfsCounter, 781 mSDsluCounter, 5957 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 11402 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:54:08,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 11402 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1402 Invalid, 5 Unknown, 0 Unchecked, 20.6s Time] [2021-11-25 18:54:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125187 states. [2021-11-25 18:54:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125187 to 114465. [2021-11-25 18:54:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114465 states, 70644 states have (on average 1.3259017043202537) internal successors, (93667), 72717 states have internal predecessors, (93667), 35436 states have call successors, (35436), 8341 states have call predecessors, (35436), 8384 states have return successors, (36264), 35012 states have call predecessors, (36264), 35434 states have call successors, (36264) [2021-11-25 18:54:13,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114465 states to 114465 states and 165367 transitions. [2021-11-25 18:54:13,940 INFO L78 Accepts]: Start accepts. Automaton has 114465 states and 165367 transitions. Word has length 331 [2021-11-25 18:54:13,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:54:13,941 INFO L470 AbstractCegarLoop]: Abstraction has 114465 states and 165367 transitions. [2021-11-25 18:54:13,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-25 18:54:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 114465 states and 165367 transitions. [2021-11-25 18:54:14,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-11-25 18:54:14,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:54:14,001 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 18:54:14,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:54:14,001 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:54:14,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:54:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1710764376, now seen corresponding path program 1 times [2021-11-25 18:54:14,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:54:14,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354459740] [2021-11-25 18:54:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:54:14,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:54:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:54:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-11-25 18:54:15,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:54:15,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354459740] [2021-11-25 18:54:15,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354459740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:54:15,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:54:15,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:54:15,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693433891] [2021-11-25 18:54:15,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:54:15,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:54:15,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:54:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:54:15,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:54:15,097 INFO L87 Difference]: Start difference. First operand 114465 states and 165367 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-25 18:54:17,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:19,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:22,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:54:26,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:29,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:30,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:39,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:39,781 INFO L93 Difference]: Finished difference Result 226062 states and 328399 transitions. [2021-11-25 18:54:39,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:54:39,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 340 [2021-11-25 18:54:39,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:41,182 INFO L225 Difference]: With dead ends: 226062 [2021-11-25 18:54:41,182 INFO L226 Difference]: Without dead ends: 226058