./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath9k--ath9k_htc.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_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath9k--ath9k_htc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9d67535bb3f3fe0b9e64b674c8797527ba05e817b0bdaf34e718a61b3134296a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:00:56,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:00:56,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:00:56,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:00:56,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:00:56,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:00:56,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:00:56,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:00:56,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:00:56,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:00:56,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:00:56,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:00:56,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:00:56,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:00:56,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:00:56,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:00:56,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:00:56,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:00:56,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:00:56,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:00:56,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:00:56,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:00:56,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:00:56,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:00:56,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:00:56,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:00:56,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:00:56,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:00:56,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:00:56,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:00:56,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:00:56,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:00:56,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:00:56,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:00:56,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:00:56,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:00:56,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:00:56,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:00:56,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:00:56,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:00:56,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:00:56,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 22:00:56,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:00:56,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:00:56,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:00:56,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:00:56,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:00:56,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:00:56,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:00:56,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:00:56,495 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:00:56,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:00:56,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:00:56,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:00:56,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:00:56,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:00:56,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:00:56,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:00:56,497 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:00:56,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:00:56,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:00:56,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:00:56,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:00:56,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:00:56,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:00:56,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:00:56,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:00:56,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:00:56,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:00:56,499 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:00:56,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:00:56,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:00:56,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:00:56,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d67535bb3f3fe0b9e64b674c8797527ba05e817b0bdaf34e718a61b3134296a [2021-12-06 22:00:56,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:00:56,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:00:56,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:00:56,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:00:56,695 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:00:56,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath9k--ath9k_htc.ko-entry_point.cil.out.i [2021-12-06 22:00:56,737 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/data/ab4b0ce9f/fff5cd998a0044bc8f4cefc9b8eb39a0/FLAG2c0a10de3 [2021-12-06 22:00:57,447 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:00:57,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath9k--ath9k_htc.ko-entry_point.cil.out.i [2021-12-06 22:00:57,488 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/data/ab4b0ce9f/fff5cd998a0044bc8f4cefc9b8eb39a0/FLAG2c0a10de3 [2021-12-06 22:00:57,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/data/ab4b0ce9f/fff5cd998a0044bc8f4cefc9b8eb39a0 [2021-12-06 22:00:57,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:00:57,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:00:57,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:00:57,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:00:57,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:00:57,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:00:57" (1/1) ... [2021-12-06 22:00:57,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65cbbb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:00:57, skipping insertion in model container [2021-12-06 22:00:57,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:00:57" (1/1) ... [2021-12-06 22:00:57,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:00:57,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:00:58,731 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_29f639cd-9b0f-4ffa-a766-76d5215e732f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath9k--ath9k_htc.ko-entry_point.cil.out.i[239827,239840] [2021-12-06 22:01:02,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:01:02,948 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:01:03,065 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_29f639cd-9b0f-4ffa-a766-76d5215e732f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath9k--ath9k_htc.ko-entry_point.cil.out.i[239827,239840] [2021-12-06 22:01:03,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:01:03,702 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:01:03,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03 WrapperNode [2021-12-06 22:01:03,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:01:03,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:01:03,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:01:03,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:01:03,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,114 INFO L137 Inliner]: procedures = 713, calls = 6649, calls flagged for inlining = 344, calls inlined = 262, statements flattened = 13076 [2021-12-06 22:01:04,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:01:04,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:01:04,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:01:04,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:01:04,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:01:04,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:01:04,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:01:04,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:01:04,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:04,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:01:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:01:04,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:01:04,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:01:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure hif_usb_start [2021-12-06 22:01:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_usb_start [2021-12-06 22:01:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_beaconq_config [2021-12-06 22:01:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_beaconq_config [2021-12-06 22:01:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-06 22:01:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-06 22:01:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_setpower [2021-12-06 22:01:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_setpower [2021-12-06 22:01:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_sw_scan_complete [2021-12-06 22:01:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_sw_scan_complete [2021-12-06 22:01:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_et_sset_count [2021-12-06 22:01:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_et_sset_count [2021-12-06 22:01:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-06 22:01:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-06 22:01:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_reset [2021-12-06 22:01:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_reset [2021-12-06 22:01:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-06 22:01:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-06 22:01:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_host_rx_init [2021-12-06 22:01:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_host_rx_init [2021-12-06 22:01:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_et_stats [2021-12-06 22:01:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_et_stats [2021-12-06 22:01:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-06 22:01:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-06 22:01:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_tsf [2021-12-06 22:01:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_tsf [2021-12-06 22:01:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 22:01:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 22:01:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure conf_is_ht40 [2021-12-06 22:01:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_is_ht40 [2021-12-06 22:01:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_process [2021-12-06 22:01:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_process [2021-12-06 22:01:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_cleanup_queue [2021-12-06 22:01:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_cleanup_queue [2021-12-06 22:01:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-06 22:01:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-06 22:01:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure htc_stop [2021-12-06 22:01:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure htc_stop [2021-12-06 22:01:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_bss_info_changed [2021-12-06 22:01:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_bss_info_changed [2021-12-06 22:01:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_ps_wakeup [2021-12-06 22:01:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_ps_wakeup [2021-12-06 22:01:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_sta_rc_update [2021-12-06 22:01:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_sta_rc_update [2021-12-06 22:01:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_tsf [2021-12-06 22:01:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_tsf [2021-12-06 22:01:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 22:01:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 22:01:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_regwrite_multi [2021-12-06 22:01:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_regwrite_multi [2021-12-06 22:01:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_beacon_config_sta [2021-12-06 22:01:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_beacon_config_sta [2021-12-06 22:01:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_et_strings [2021-12-06 22:01:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_et_strings [2021-12-06 22:01:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_drain [2021-12-06 22:01:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_drain [2021-12-06 22:01:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_unregister_hw [2021-12-06 22:01:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_unregister_hw [2021-12-06 22:01:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_get_packet [2021-12-06 22:01:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_get_packet [2021-12-06 22:01:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_hw_free [2021-12-06 22:01:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_hw_free [2021-12-06 22:01:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 22:01:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 22:01:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_wait_for_target [2021-12-06 22:01:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_wait_for_target [2021-12-06 22:01:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_rxena [2021-12-06 22:01:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_rxena [2021-12-06 22:01:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_aggr_oper [2021-12-06 22:01:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_aggr_oper [2021-12-06 22:01:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_tx_cleanup [2021-12-06 22:01:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_tx_cleanup [2021-12-06 22:01:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_stats [2021-12-06 22:01:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_stats [2021-12-06 22:01:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure wmi_cmd_to_name [2021-12-06 22:01:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure wmi_cmd_to_name [2021-12-06 22:01:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_stop_ani [2021-12-06 22:01:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_stop_ani [2021-12-06 22:01:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-06 22:01:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_qos_ctl [2021-12-06 22:01:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_qos_ctl [2021-12-06 22:01:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 22:01:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 22:01:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_txcompletion_cb [2021-12-06 22:01:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_txcompletion_cb [2021-12-06 22:01:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_ps_restore [2021-12-06 22:01:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_ps_restore [2021-12-06 22:01:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_disable [2021-12-06 22:01:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_disable [2021-12-06 22:01:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure htc_connect_service [2021-12-06 22:01:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure htc_connect_service [2021-12-06 22:01:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_wmi_event_drain [2021-12-06 22:01:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_wmi_event_drain [2021-12-06 22:01:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:01:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_rfkill_poll_state [2021-12-06 22:01:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_rfkill_poll_state [2021-12-06 22:01:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_init_htc_services [2021-12-06 22:01:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_init_htc_services [2021-12-06 22:01:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-06 22:01:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-06 22:01:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-06 22:01:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-06 22:01:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2021-12-06 22:01:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2021-12-06 22:01:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2021-12-06 22:01:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2021-12-06 22:01:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_beacon_config_adhoc [2021-12-06 22:01:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_beacon_config_adhoc [2021-12-06 22:01:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_common [2021-12-06 22:01:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_common [2021-12-06 22:01:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 22:01:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 22:01:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_setrxfilter [2021-12-06 22:01:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_setrxfilter [2021-12-06 22:01:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-06 22:01:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-06 22:01:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_config [2021-12-06 22:01:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_config [2021-12-06 22:01:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure write_file_debug [2021-12-06 22:01:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure write_file_debug [2021-12-06 22:01:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 22:01:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-06 22:01:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-06 22:01:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_reset [2021-12-06 22:01:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_reset [2021-12-06 22:01:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_beacon_init [2021-12-06 22:01:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_beacon_init [2021-12-06 22:01:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_dealloc_urbs [2021-12-06 22:01:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_dealloc_urbs [2021-12-06 22:01:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 22:01:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 22:01:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 22:01:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_35 [2021-12-06 22:01:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_35 [2021-12-06 22:01:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_bitrate_mask [2021-12-06 22:01:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_bitrate_mask [2021-12-06 22:01:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-06 22:01:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-06 22:01:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_deinit_priv [2021-12-06 22:01:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_deinit_priv [2021-12-06 22:01:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:01:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-12-06 22:01:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-12-06 22:01:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 22:01:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 22:01:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-12-06 22:01:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-12-06 22:01:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_skb_queue_complete [2021-12-06 22:01:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_skb_queue_complete [2021-12-06 22:01:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure __ath9k_htc_remove_monitor_interface [2021-12-06 22:01:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __ath9k_htc_remove_monitor_interface [2021-12-06 22:01:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-12-06 22:01:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-12-06 22:01:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-06 22:01:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-06 22:01:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-06 22:01:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-06 22:01:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_rx_cleanup [2021-12-06 22:01:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_rx_cleanup [2021-12-06 22:01:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2021-12-06 22:01:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2021-12-06 22:01:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_clear_slot [2021-12-06 22:01:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_clear_slot [2021-12-06 22:01:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_get_txq_props [2021-12-06 22:01:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_get_txq_props [2021-12-06 22:01:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_disconnect [2021-12-06 22:01:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_disconnect [2021-12-06 22:01:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-06 22:01:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-06 22:01:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_set_gpio [2021-12-06 22:01:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_set_gpio [2021-12-06 22:01:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_set_txq_props [2021-12-06 22:01:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_set_txq_props [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_calcrxfilter [2021-12-06 22:01:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_calcrxfilter [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-12-06 22:01:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_alloc_urbs [2021-12-06 22:01:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_alloc_urbs [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-06 22:01:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-06 22:01:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-06 22:01:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure htc_start [2021-12-06 22:01:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure htc_start [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_remove_station [2021-12-06 22:01:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_remove_station [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-06 22:01:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure htc_issue_send [2021-12-06 22:01:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure htc_issue_send [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-06 22:01:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_vif_reconfig [2021-12-06 22:01:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_vif_reconfig [2021-12-06 22:01:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 22:01:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 22:01:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_cmn_get_hw_crypto_keytype [2021-12-06 22:01:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_cmn_get_hw_crypto_keytype [2021-12-06 22:01:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_dev_deinit [2021-12-06 22:01:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_dev_deinit [2021-12-06 22:01:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-06 22:01:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-06 22:01:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-06 22:01:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-06 22:01:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2021-12-06 22:01:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2021-12-06 22:01:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_resettxqueue [2021-12-06 22:01:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_resettxqueue [2021-12-06 22:01:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-06 22:01:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-06 22:01:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-06 22:01:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-06 22:01:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_beacon_config_ap [2021-12-06 22:01:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_beacon_config_ap [2021-12-06 22:01:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-06 22:01:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-06 22:01:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-06 22:01:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-06 22:01:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 22:01:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 22:01:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2021-12-06 22:01:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2021-12-06 22:01:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_rx_msg [2021-12-06 22:01:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_rx_msg [2021-12-06 22:01:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_mac_bssid_mask [2021-12-06 22:01:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_mac_bssid_mask [2021-12-06 22:01:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_configure_filter [2021-12-06 22:01:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_configure_filter [2021-12-06 22:01:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-06 22:01:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-06 22:01:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_start_ani [2021-12-06 22:01:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_start_ani [2021-12-06 22:01:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_ops [2021-12-06 22:01:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_ops [2021-12-06 22:01:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-06 22:01:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-06 22:01:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 22:01:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 22:01:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_conf_tx [2021-12-06 22:01:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_conf_tx [2021-12-06 22:01:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-06 22:01:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-06 22:01:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:01:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:01:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2021-12-06 22:01:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2021-12-06 22:01:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure __hif_usb_tx [2021-12-06 22:01:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __hif_usb_tx [2021-12-06 22:01:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-06 22:01:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-06 22:01:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure HTC_SKB_CB [2021-12-06 22:01:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure HTC_SKB_CB [2021-12-06 22:01:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-06 22:01:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-06 22:01:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_start [2021-12-06 22:01:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_start [2021-12-06 22:01:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_beacon_config [2021-12-06 22:01:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_beacon_config [2021-12-06 22:01:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure get_htc_epid_queue [2021-12-06 22:01:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_htc_epid_queue [2021-12-06 22:01:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-06 22:01:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_sw_scan_start [2021-12-06 22:01:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_sw_scan_start [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 22:01:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-06 22:01:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx [2021-12-06 22:01:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-06 22:01:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-06 22:01:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-12-06 22:01:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-12-06 22:01:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-06 22:01:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-06 22:01:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_reset_tsf [2021-12-06 22:01:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_reset_tsf [2021-12-06 22:01:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_remove_interface [2021-12-06 22:01:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_remove_interface [2021-12-06 22:01:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_deinit [2021-12-06 22:01:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_deinit [2021-12-06 22:01:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_drainq [2021-12-06 22:01:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_drainq [2021-12-06 22:01:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_wmi_cmd [2021-12-06 22:01:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_wmi_cmd [2021-12-06 22:01:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_tx_get_slot [2021-12-06 22:01:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_tx_get_slot [2021-12-06 22:01:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2021-12-06 22:01:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2021-12-06 22:01:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 22:01:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 22:01:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-12-06 22:01:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-12-06 22:01:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-06 22:01:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-06 22:01:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 22:01:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 22:01:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_hdrlen [2021-12-06 22:01:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_hdrlen [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-06 22:01:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_get_btcoex_scheme [2021-12-06 22:01:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_get_btcoex_scheme [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 22:01:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_resume [2021-12-06 22:01:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_resume [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 22:01:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 22:01:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_iterate_active_interfaces_atomic [2021-12-06 22:01:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_iterate_active_interfaces_atomic [2021-12-06 22:01:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-06 22:01:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-06 22:01:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_deinit_wmi [2021-12-06 22:01:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_deinit_wmi [2021-12-06 22:01:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_setpower [2021-12-06 22:01:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_setpower [2021-12-06 22:01:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-06 22:01:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-06 22:01:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure hif_usb_send [2021-12-06 22:01:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_usb_send [2021-12-06 22:01:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ath_usb_read_cachesize [2021-12-06 22:01:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_usb_read_cachesize [2021-12-06 22:01:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-06 22:01:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-06 22:01:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_update_cap_target [2021-12-06 22:01:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_update_cap_target [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_btcoex_bt_stomp [2021-12-06 22:01:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_btcoex_bt_stomp [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 22:01:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_find_sta [2021-12-06 22:01:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_find_sta [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-06 22:01:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-06 22:01:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-06 22:01:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-12-06 22:01:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-12-06 22:01:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_ampdu_action [2021-12-06 22:01:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_ampdu_action [2021-12-06 22:01:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2021-12-06 22:01:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2021-12-06 22:01:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2021-12-06 22:01:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2021-12-06 22:01:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_setup_rate [2021-12-06 22:01:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_setup_rate [2021-12-06 22:01:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_sta_add [2021-12-06 22:01:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_sta_add [2021-12-06 22:01:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 22:01:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_btcoex_enable [2021-12-06 22:01:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_btcoex_enable [2021-12-06 22:01:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_stop [2021-12-06 22:01:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_stop [2021-12-06 22:01:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_opmode [2021-12-06 22:01:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_opmode [2021-12-06 22:01:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_cmn_update_txpow [2021-12-06 22:01:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_cmn_update_txpow [2021-12-06 22:01:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 22:01:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 22:01:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-06 22:01:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-06 22:01:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 22:01:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 22:01:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_add_interface [2021-12-06 22:01:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_add_interface [2021-12-06 22:01:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 22:01:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 22:01:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-06 22:01:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-06 22:01:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2021-12-06 22:01:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2021-12-06 22:01:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-06 22:01:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-06 22:01:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 22:01:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 22:01:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-06 22:01:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-06 22:01:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_curmode [2021-12-06 22:01:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_curmode [2021-12-06 22:01:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-06 22:01:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-06 22:01:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 22:01:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 22:01:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure hif_usb_sta_drain [2021-12-06 22:01:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_usb_sta_drain [2021-12-06 22:01:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-06 22:01:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-06 22:01:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-06 22:01:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-06 22:01:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-06 22:01:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-06 22:01:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-06 22:01:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-06 22:01:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 22:01:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 22:01:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_key [2021-12-06 22:01:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_key [2021-12-06 22:01:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 22:01:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 22:01:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_cmn_get_channel [2021-12-06 22:01:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_cmn_get_channel [2021-12-06 22:01:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-06 22:01:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-06 22:01:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2021-12-06 22:01:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2021-12-06 22:01:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-06 22:01:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-06 22:01:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 22:01:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 22:01:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2021-12-06 22:01:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2021-12-06 22:01:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_init_global_settings [2021-12-06 22:01:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_init_global_settings [2021-12-06 22:01:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_dealloc_reg_in_urbs [2021-12-06 22:01:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_dealloc_reg_in_urbs [2021-12-06 22:01:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_fatal_work [2021-12-06 22:01:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_fatal_work [2021-12-06 22:01:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-06 22:01:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_rts_threshold [2021-12-06 22:01:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_rts_threshold [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-06 22:01:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 22:01:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_add_station [2021-12-06 22:01:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_add_station [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2021-12-06 22:01:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-06 22:01:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-06 22:01:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-06 22:01:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_dealloc_rx_urbs [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_dealloc_rx_urbs [2021-12-06 22:01:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_eeprom_base [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_eeprom_base [2021-12-06 22:01:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-06 22:01:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_connect_svc [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_connect_svc [2021-12-06 22:01:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hw_gpio_get [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hw_gpio_get [2021-12-06 22:01:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_sta_remove [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_sta_remove [2021-12-06 22:01:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_send_rate_cmd [2021-12-06 22:01:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_send_rate_cmd [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-06 22:01:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-12-06 22:01:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-06 22:01:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_check_wake_queues [2021-12-06 22:01:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_check_wake_queues [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ffz [2021-12-06 22:01:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ffz [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_regread [2021-12-06 22:01:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_regread [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_dealloc_tx_urbs [2021-12-06 22:01:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_dealloc_tx_urbs [2021-12-06 22:01:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_coverage_class [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_coverage_class [2021-12-06 22:01:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_hif_usb_download_fw [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_hif_usb_download_fw [2021-12-06 22:01:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure conf_is_ht [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_is_ht [2021-12-06 22:01:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-06 22:01:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 22:01:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2021-12-06 22:01:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure htc_send [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure htc_send [2021-12-06 22:01:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-06 22:01:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ath_usb_eeprom_read [2021-12-06 22:01:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_usb_eeprom_read [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_reset_tsf [2021-12-06 22:01:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_reset_tsf [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_configure_leds [2021-12-06 22:01:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_configure_leds [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_remove_monitor_interface [2021-12-06 22:01:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_remove_monitor_interface [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_set_bssid [2021-12-06 22:01:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_set_bssid [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure hif_usb_stop [2021-12-06 22:01:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_usb_stop [2021-12-06 22:01:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ath9k_htc_get_antenna [2021-12-06 22:01:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ath9k_htc_get_antenna [2021-12-06 22:01:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-12-06 22:01:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-06 22:01:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-06 22:01:05,656 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:01:05,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:01:06,111 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 22:01:15,077 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:01:15,107 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:01:15,108 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 22:01:15,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:15 BoogieIcfgContainer [2021-12-06 22:01:15,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:01:15,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:01:15,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:01:15,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:01:15,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:00:57" (1/3) ... [2021-12-06 22:01:15,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba2976f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:01:15, skipping insertion in model container [2021-12-06 22:01:15,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (2/3) ... [2021-12-06 22:01:15,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba2976f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:01:15, skipping insertion in model container [2021-12-06 22:01:15,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:15" (3/3) ... [2021-12-06 22:01:15,119 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath9k--ath9k_htc.ko-entry_point.cil.out.i [2021-12-06 22:01:15,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:01:15,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:01:15,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:01:15,193 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=PETRI_NET, 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 [2021-12-06 22:01:15,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:01:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 4550 states, 3055 states have (on average 1.348936170212766) internal successors, (4121), 3164 states have internal predecessors, (4121), 1249 states have call successors, (1249), 245 states have call predecessors, (1249), 244 states have return successors, (1234), 1207 states have call predecessors, (1234), 1234 states have call successors, (1234) [2021-12-06 22:01:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 22:01:15,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:01:15,290 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:01:15,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:01:15,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:01:15,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1753720139, now seen corresponding path program 1 times [2021-12-06 22:01:15,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:01:15,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764755442] [2021-12-06 22:01:15,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:01:15,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:01:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:01:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:01:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:01:16,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:01:16,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764755442] [2021-12-06 22:01:16,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764755442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:01:16,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:01:16,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:01:16,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741035616] [2021-12-06 22:01:16,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:01:16,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:01:16,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:01:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:01:16,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:01:16,108 INFO L87 Difference]: Start difference. First operand has 4550 states, 3055 states have (on average 1.348936170212766) internal successors, (4121), 3164 states have internal predecessors, (4121), 1249 states have call successors, (1249), 245 states have call predecessors, (1249), 244 states have return successors, (1234), 1207 states have call predecessors, (1234), 1234 states have call successors, (1234) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 22:01:23,318 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 [] [2021-12-06 22:01:28,645 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 [] [2021-12-06 22:01:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:01:30,717 INFO L93 Difference]: Finished difference Result 14570 states and 22401 transitions. [2021-12-06 22:01:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:01:30,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-12-06 22:01:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:01:30,800 INFO L225 Difference]: With dead ends: 14570 [2021-12-06 22:01:30,801 INFO L226 Difference]: Without dead ends: 9985 [2021-12-06 22:01:30,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:01:30,845 INFO L933 BasicCegarLoop]: 7350 mSDtfsCounter, 8735 mSDsluCounter, 8567 mSDsCounter, 0 mSdLazyCounter, 4672 mSolverCounterSat, 3648 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9668 SdHoareTripleChecker+Valid, 15917 SdHoareTripleChecker+Invalid, 8321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3648 IncrementalHoareTripleChecker+Valid, 4672 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-12-06 22:01:30,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9668 Valid, 15917 Invalid, 8321 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3648 Valid, 4672 Invalid, 1 Unknown, 0 Unchecked, 13.9s Time] [2021-12-06 22:01:30,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2021-12-06 22:01:31,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 8966. [2021-12-06 22:01:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8966 states, 6039 states have (on average 1.3435999337638682) internal successors, (8114), 6222 states have internal predecessors, (8114), 2441 states have call successors, (2441), 486 states have call predecessors, (2441), 485 states have return successors, (2440), 2386 states have call predecessors, (2440), 2440 states have call successors, (2440) [2021-12-06 22:01:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8966 states to 8966 states and 12995 transitions. [2021-12-06 22:01:31,427 INFO L78 Accepts]: Start accepts. Automaton has 8966 states and 12995 transitions. Word has length 41 [2021-12-06 22:01:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:01:31,428 INFO L470 AbstractCegarLoop]: Abstraction has 8966 states and 12995 transitions. [2021-12-06 22:01:31,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 22:01:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 8966 states and 12995 transitions. [2021-12-06 22:01:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 22:01:31,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:01:31,434 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 22:01:31,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:01:31,434 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:01:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:01:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1297931261, now seen corresponding path program 1 times [2021-12-06 22:01:31,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:01:31,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053549126] [2021-12-06 22:01:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:01:31,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:01:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:31,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:01:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:01:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 22:01:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:31,928 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:01:31,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:01:31,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053549126] [2021-12-06 22:01:31,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053549126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:01:31,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:01:31,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:01:31,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752278187] [2021-12-06 22:01:31,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:01:31,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:01:31,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:01:31,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:01:31,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:01:31,931 INFO L87 Difference]: Start difference. First operand 8966 states and 12995 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 22:01:41,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:01:46,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:01:50,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:01:50,449 INFO L93 Difference]: Finished difference Result 28889 states and 43826 transitions. [2021-12-06 22:01:50,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 22:01:50,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2021-12-06 22:01:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:01:50,585 INFO L225 Difference]: With dead ends: 28889 [2021-12-06 22:01:50,585 INFO L226 Difference]: Without dead ends: 19925 [2021-12-06 22:01:50,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:01:50,635 INFO L933 BasicCegarLoop]: 7793 mSDtfsCounter, 8634 mSDsluCounter, 23141 mSDsCounter, 0 mSdLazyCounter, 8003 mSolverCounterSat, 3643 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9500 SdHoareTripleChecker+Valid, 30934 SdHoareTripleChecker+Invalid, 11647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3643 IncrementalHoareTripleChecker+Valid, 8003 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-12-06 22:01:50,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9500 Valid, 30934 Invalid, 11647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3643 Valid, 8003 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2021-12-06 22:01:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19925 states. [2021-12-06 22:01:51,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19925 to 18184. [2021-12-06 22:01:51,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18184 states, 12256 states have (on average 1.3430972584856398) internal successors, (16461), 12639 states have internal predecessors, (16461), 4914 states have call successors, (4914), 970 states have call predecessors, (4914), 1013 states have return successors, (5678), 4833 states have call predecessors, (5678), 4913 states have call successors, (5678) [2021-12-06 22:01:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18184 states to 18184 states and 27053 transitions. [2021-12-06 22:01:51,437 INFO L78 Accepts]: Start accepts. Automaton has 18184 states and 27053 transitions. Word has length 51 [2021-12-06 22:01:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:01:51,438 INFO L470 AbstractCegarLoop]: Abstraction has 18184 states and 27053 transitions. [2021-12-06 22:01:51,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 22:01:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 18184 states and 27053 transitions. [2021-12-06 22:01:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-06 22:01:51,457 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:01:51,457 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-06 22:01:51,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:01:51,458 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:01:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:01:51,458 INFO L85 PathProgramCache]: Analyzing trace with hash -930218019, now seen corresponding path program 1 times [2021-12-06 22:01:51,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:01:51,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127455943] [2021-12-06 22:01:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:01:51,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:01:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:01:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:01:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 22:01:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 22:01:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 22:01:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 22:01:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:01:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:01:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 22:01:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:01:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:01:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:01:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:51,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:01:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 22:01:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:01:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:01:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 22:01:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:01:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 22:01:52,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:01:52,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127455943] [2021-12-06 22:01:52,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127455943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:01:52,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:01:52,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:01:52,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709054310] [2021-12-06 22:01:52,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:01:52,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:01:52,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:01:52,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:01:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:01:52,072 INFO L87 Difference]: Start difference. First operand 18184 states and 27053 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:02:02,371 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 [] [2021-12-06 22:02:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:02:14,928 INFO L93 Difference]: Finished difference Result 59932 states and 91250 transitions. [2021-12-06 22:02:14,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:02:14,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2021-12-06 22:02:14,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:02:15,118 INFO L225 Difference]: With dead ends: 59932 [2021-12-06 22:02:15,118 INFO L226 Difference]: Without dead ends: 41757 [2021-12-06 22:02:15,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:02:15,181 INFO L933 BasicCegarLoop]: 6972 mSDtfsCounter, 15101 mSDsluCounter, 11038 mSDsCounter, 0 mSdLazyCounter, 9034 mSolverCounterSat, 10904 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16123 SdHoareTripleChecker+Valid, 18010 SdHoareTripleChecker+Invalid, 19939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10904 IncrementalHoareTripleChecker+Valid, 9034 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2021-12-06 22:02:15,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16123 Valid, 18010 Invalid, 19939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10904 Valid, 9034 Invalid, 1 Unknown, 0 Unchecked, 21.6s Time] [2021-12-06 22:02:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41757 states. [2021-12-06 22:02:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41757 to 36702. [2021-12-06 22:02:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36702 states, 24784 states have (on average 1.3441333118140737) internal successors, (33313), 25571 states have internal predecessors, (33313), 9836 states have call successors, (9836), 1938 states have call predecessors, (9836), 2081 states have return successors, (11646), 9697 states have call predecessors, (11646), 9835 states have call successors, (11646) [2021-12-06 22:02:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36702 states to 36702 states and 54795 transitions. [2021-12-06 22:02:16,614 INFO L78 Accepts]: Start accepts. Automaton has 36702 states and 54795 transitions. Word has length 148 [2021-12-06 22:02:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:02:16,614 INFO L470 AbstractCegarLoop]: Abstraction has 36702 states and 54795 transitions. [2021-12-06 22:02:16,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:02:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 36702 states and 54795 transitions. [2021-12-06 22:02:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-06 22:02:16,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:02:16,626 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-06 22:02:16,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:02:16,626 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:02:16,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:02:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1159374282, now seen corresponding path program 1 times [2021-12-06 22:02:16,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:02:16,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940724102] [2021-12-06 22:02:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:02:16,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:02:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:02:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:16,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:02:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 22:02:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:16,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 22:02:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 22:02:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 22:02:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:16,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:02:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 22:02:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:02:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 22:02:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:02:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 22:02:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 22:02:17,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:02:17,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940724102] [2021-12-06 22:02:17,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940724102] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:02:17,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:02:17,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:02:17,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127363272] [2021-12-06 22:02:17,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:02:17,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:02:17,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:02:17,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:02:17,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:02:17,235 INFO L87 Difference]: Start difference. First operand 36702 states and 54795 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:02:28,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:02:38,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:02:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:02:43,862 INFO L93 Difference]: Finished difference Result 119638 states and 182266 transitions. [2021-12-06 22:02:43,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:02:43,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2021-12-06 22:02:43,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:02:44,336 INFO L225 Difference]: With dead ends: 119638 [2021-12-06 22:02:44,336 INFO L226 Difference]: Without dead ends: 82945 [2021-12-06 22:02:44,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:02:44,468 INFO L933 BasicCegarLoop]: 7022 mSDtfsCounter, 12313 mSDsluCounter, 13536 mSDsCounter, 0 mSdLazyCounter, 11542 mSolverCounterSat, 7637 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13322 SdHoareTripleChecker+Valid, 20558 SdHoareTripleChecker+Invalid, 19180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7637 IncrementalHoareTripleChecker+Valid, 11542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-12-06 22:02:44,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13322 Valid, 20558 Invalid, 19180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7637 Valid, 11542 Invalid, 1 Unknown, 0 Unchecked, 24.2s Time] [2021-12-06 22:02:44,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82945 states. [2021-12-06 22:02:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82945 to 72846. [2021-12-06 22:02:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72846 states, 49208 states have (on average 1.344679726873679) internal successors, (66169), 50783 states have internal predecessors, (66169), 19476 states have call successors, (19476), 3874 states have call predecessors, (19476), 4161 states have return successors, (23062), 19197 states have call predecessors, (23062), 19475 states have call successors, (23062) [2021-12-06 22:02:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72846 states to 72846 states and 108707 transitions. [2021-12-06 22:02:47,289 INFO L78 Accepts]: Start accepts. Automaton has 72846 states and 108707 transitions. Word has length 151 [2021-12-06 22:02:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:02:47,289 INFO L470 AbstractCegarLoop]: Abstraction has 72846 states and 108707 transitions. [2021-12-06 22:02:47,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:02:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 72846 states and 108707 transitions. [2021-12-06 22:02:47,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-06 22:02:47,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:02:47,301 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-06 22:02:47,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:02:47,302 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:02:47,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:02:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2126110880, now seen corresponding path program 1 times [2021-12-06 22:02:47,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:02:47,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745982068] [2021-12-06 22:02:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:02:47,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:02:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:02:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:02:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 22:02:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 22:02:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 22:02:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 22:02:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:02:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 22:02:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:02:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 22:02:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:02:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:02:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 22:02:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:02:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 22:02:47,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:02:47,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745982068] [2021-12-06 22:02:47,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745982068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:02:47,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:02:47,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:02:47,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504689646] [2021-12-06 22:02:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:02:47,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:02:47,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:02:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:02:47,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:02:47,836 INFO L87 Difference]: Start difference. First operand 72846 states and 108707 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:02:58,418 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 [] [2021-12-06 22:03:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:03:13,272 INFO L93 Difference]: Finished difference Result 237956 states and 362376 transitions. [2021-12-06 22:03:13,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:03:13,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2021-12-06 22:03:13,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:03:14,154 INFO L225 Difference]: With dead ends: 237956 [2021-12-06 22:03:14,154 INFO L226 Difference]: Without dead ends: 165119 [2021-12-06 22:03:14,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:03:14,385 INFO L933 BasicCegarLoop]: 7078 mSDtfsCounter, 15224 mSDsluCounter, 10881 mSDsCounter, 0 mSdLazyCounter, 8515 mSolverCounterSat, 10850 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16254 SdHoareTripleChecker+Valid, 17959 SdHoareTripleChecker+Invalid, 19366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10850 IncrementalHoareTripleChecker+Valid, 8515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-12-06 22:03:14,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16254 Valid, 17959 Invalid, 19366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10850 Valid, 8515 Invalid, 1 Unknown, 0 Unchecked, 20.8s Time] [2021-12-06 22:03:14,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165119 states. [2021-12-06 22:03:19,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165119 to 144944. [2021-12-06 22:03:19,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144944 states, 97902 states have (on average 1.3445179873751303) internal successors, (131631), 101053 states have internal predecessors, (131631), 38720 states have call successors, (38720), 7746 states have call predecessors, (38720), 8321 states have return successors, (45852), 38161 states have call predecessors, (45852), 38719 states have call successors, (45852) [2021-12-06 22:03:20,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144944 states to 144944 states and 216203 transitions. [2021-12-06 22:03:20,489 INFO L78 Accepts]: Start accepts. Automaton has 144944 states and 216203 transitions. Word has length 147 [2021-12-06 22:03:20,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:03:20,489 INFO L470 AbstractCegarLoop]: Abstraction has 144944 states and 216203 transitions. [2021-12-06 22:03:20,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:03:20,490 INFO L276 IsEmpty]: Start isEmpty. Operand 144944 states and 216203 transitions. [2021-12-06 22:03:20,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 22:03:20,499 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:03:20,499 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:03:20,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:03:20,500 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:03:20,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:03:20,500 INFO L85 PathProgramCache]: Analyzing trace with hash -172400043, now seen corresponding path program 1 times [2021-12-06 22:03:20,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:03:20,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531489305] [2021-12-06 22:03:20,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:03:20,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:03:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:20,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:03:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:20,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:03:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 22:03:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 22:03:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 22:03:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:03:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:03:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 22:03:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:03:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 22:03:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 22:03:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 22:03:21,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:03:21,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531489305] [2021-12-06 22:03:21,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531489305] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:03:21,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552057073] [2021-12-06 22:03:21,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:03:21,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:03:21,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:03:21,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:03:21,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 22:03:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:22,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 7008 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:03:22,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:03:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-06 22:03:22,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:03:22,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552057073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:03:22,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 22:03:22,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [19] total 20 [2021-12-06 22:03:22,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653332433] [2021-12-06 22:03:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:03:22,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:03:22,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:03:22,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:03:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-12-06 22:03:22,754 INFO L87 Difference]: Start difference. First operand 144944 states and 216203 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 22:03:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:03:30,441 INFO L93 Difference]: Finished difference Result 432538 states and 645320 transitions. [2021-12-06 22:03:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:03:30,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-06 22:03:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:03:32,166 INFO L225 Difference]: With dead ends: 432538 [2021-12-06 22:03:32,166 INFO L226 Difference]: Without dead ends: 287603 [2021-12-06 22:03:32,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-12-06 22:03:32,871 INFO L933 BasicCegarLoop]: 9091 mSDtfsCounter, 6392 mSDsluCounter, 6528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6392 SdHoareTripleChecker+Valid, 15619 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 22:03:32,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6392 Valid, 15619 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 22:03:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287603 states. [2021-12-06 22:03:41,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287603 to 287561. [2021-12-06 22:03:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287561 states, 194163 states have (on average 1.3446279672234154) internal successors, (261077), 200451 states have internal predecessors, (261077), 76915 states have call successors, (76915), 15363 states have call predecessors, (76915), 16482 states have return successors, (90935), 75780 states have call predecessors, (90935), 76914 states have call successors, (90935) [2021-12-06 22:03:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287561 states to 287561 states and 428927 transitions. [2021-12-06 22:03:43,790 INFO L78 Accepts]: Start accepts. Automaton has 287561 states and 428927 transitions. Word has length 161 [2021-12-06 22:03:43,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:03:43,790 INFO L470 AbstractCegarLoop]: Abstraction has 287561 states and 428927 transitions. [2021-12-06 22:03:43,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 22:03:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 287561 states and 428927 transitions. [2021-12-06 22:03:43,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-06 22:03:43,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:03:43,800 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2021-12-06 22:03:43,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:03:44,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f639cd-9b0f-4ffa-a766-76d5215e732f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-06 22:03:44,002 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:03:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:03:44,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1915975088, now seen corresponding path program 1 times [2021-12-06 22:03:44,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:03:44,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318655547] [2021-12-06 22:03:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:03:44,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:03:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:03:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:03:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 22:03:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 22:03:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 22:03:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 22:03:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 22:03:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 22:03:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:03:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 22:03:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:03:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 22:03:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 22:03:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 22:03:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:03:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-06 22:03:44,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:03:44,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318655547] [2021-12-06 22:03:44,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318655547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:03:44,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:03:44,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:03:44,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383811994] [2021-12-06 22:03:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:03:44,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:03:44,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:03:44,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:03:44,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:03:44,594 INFO L87 Difference]: Start difference. First operand 287561 states and 428927 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:03:51,284 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 [] [2021-12-06 22:04:09,922 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 [] [2021-12-06 22:04:24,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:04:24,858 INFO L93 Difference]: Finished difference Result 911893 states and 1383365 transitions. [2021-12-06 22:04:24,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 22:04:24,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2021-12-06 22:04:24,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:04:28,577 INFO L225 Difference]: With dead ends: 911893 [2021-12-06 22:04:28,577 INFO L226 Difference]: Without dead ends: 624341 [2021-12-06 22:04:29,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:04:29,919 INFO L933 BasicCegarLoop]: 8805 mSDtfsCounter, 8101 mSDsluCounter, 12012 mSDsCounter, 0 mSdLazyCounter, 8684 mSolverCounterSat, 3183 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9033 SdHoareTripleChecker+Valid, 20817 SdHoareTripleChecker+Invalid, 11869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3183 IncrementalHoareTripleChecker+Valid, 8684 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2021-12-06 22:04:29,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9033 Valid, 20817 Invalid, 11869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3183 Valid, 8684 Invalid, 2 Unknown, 0 Unchecked, 22.7s Time] [2021-12-06 22:04:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624341 states. [2021-12-06 22:04:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624341 to 572617. [2021-12-06 22:04:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572617 states, 386627 states have (on average 1.3443163565917537) internal successors, (519749), 399203 states have internal predecessors, (519749), 153027 states have call successors, (153027), 30723 states have call predecessors, (153027), 32962 states have return successors, (180575), 150756 states have call predecessors, (180575), 153026 states have call successors, (180575) [2021-12-06 22:04:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572617 states to 572617 states and 853351 transitions. [2021-12-06 22:04:54,079 INFO L78 Accepts]: Start accepts. Automaton has 572617 states and 853351 transitions. Word has length 153 [2021-12-06 22:04:54,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:04:54,080 INFO L470 AbstractCegarLoop]: Abstraction has 572617 states and 853351 transitions. [2021-12-06 22:04:54,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 22:04:54,080 INFO L276 IsEmpty]: Start isEmpty. Operand 572617 states and 853351 transitions. [2021-12-06 22:04:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-06 22:04:54,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:04:54,104 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 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] [2021-12-06 22:04:54,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 22:04:54,104 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:04:54,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:04:54,104 INFO L85 PathProgramCache]: Analyzing trace with hash -50674367, now seen corresponding path program 1 times [2021-12-06 22:04:54,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:04:54,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950871947] [2021-12-06 22:04:54,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:04:54,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:04:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:04:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:04:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 22:04:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 22:04:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 22:04:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 22:04:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-06 22:04:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 22:04:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 22:04:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 22:04:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 22:04:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 22:04:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 22:04:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 22:04:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 22:04:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 22:04:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 22:04:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 22:04:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 22:04:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 22:04:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 22:04:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:04:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:04:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 22:04:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 22:04:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:04:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 22:04:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:04:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:04:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-06 22:04:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:04:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2021-12-06 22:04:54,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:04:54,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950871947] [2021-12-06 22:04:54,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950871947] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:04:54,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:04:54,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:04:54,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066876664] [2021-12-06 22:04:54,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:04:54,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:04:54,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:04:54,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:04:54,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:04:54,861 INFO L87 Difference]: Start difference. First operand 572617 states and 853351 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-06 22:05:27,775 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 [] [2021-12-06 22:05:49,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:05:49,272 INFO L93 Difference]: Finished difference Result 1615647 states and 2436927 transitions. [2021-12-06 22:05:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:05:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 231 [2021-12-06 22:05:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:05:56,625 INFO L225 Difference]: With dead ends: 1615647 [2021-12-06 22:05:56,625 INFO L226 Difference]: Without dead ends: 1043039 [2021-12-06 22:05:59,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:05:59,612 INFO L933 BasicCegarLoop]: 8574 mSDtfsCounter, 8837 mSDsluCounter, 12171 mSDsCounter, 0 mSdLazyCounter, 9553 mSolverCounterSat, 5638 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9692 SdHoareTripleChecker+Valid, 20745 SdHoareTripleChecker+Invalid, 15192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5638 IncrementalHoareTripleChecker+Valid, 9553 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-12-06 22:05:59,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9692 Valid, 20745 Invalid, 15192 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5638 Valid, 9553 Invalid, 1 Unknown, 0 Unchecked, 20.9s Time] [2021-12-06 22:06:00,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043039 states. [2021-12-06 22:06:34,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043039 to 909705. [2021-12-06 22:06:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909705 states, 615871 states have (on average 1.3387300262554984) internal successors, (824485), 635263 states have internal predecessors, (824485), 237875 states have call successors, (237875), 52315 states have call predecessors, (237875), 55958 states have return successors, (279187), 234448 states have call predecessors, (279187), 237874 states have call successors, (279187)