./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--mwifiex--mwifiex_sdio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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--mwifiex--mwifiex_sdio.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 4e928bce7a5eba940349fe986fce1ee6d952316584823caa32f480aa4c9f0c38 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:58:35,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:58:35,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:58:35,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:58:35,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:58:35,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:58:35,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:58:35,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:58:35,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:58:35,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:58:35,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:58:35,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:58:35,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:58:35,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:58:35,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:58:35,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:58:35,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:58:35,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:58:35,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:58:35,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:58:35,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:58:35,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:58:35,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:58:35,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:58:35,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:58:35,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:58:35,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:58:35,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:58:35,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:58:35,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:58:35,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:58:35,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:58:35,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:58:35,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:58:35,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:58:35,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:58:35,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:58:35,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:58:35,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:58:35,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:58:35,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:58:35,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:58:35,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:58:35,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:58:35,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:58:35,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:58:35,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:58:35,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:58:35,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:58:35,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:58:35,134 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:58:35,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:58:35,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:58:35,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:58:35,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:58:35,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:58:35,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:58:35,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:58:35,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:58:35,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:58:35,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:58:35,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:58:35,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:58:35,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:58:35,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:58:35,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:58:35,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:58:35,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:58:35,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:58:35,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:58:35,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:58:35,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:58:35,138 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e928bce7a5eba940349fe986fce1ee6d952316584823caa32f480aa4c9f0c38 [2021-12-28 03:58:35,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:58:35,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:58:35,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:58:35,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:58:35,432 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:58:35,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_sdio.ko-entry_point.cil.out.i [2021-12-28 03:58:35,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820f39f0f/ed7252af9c73436793c90d4d7bd4e3d2/FLAG0decba482 [2021-12-28 03:58:36,115 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:58:36,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_sdio.ko-entry_point.cil.out.i [2021-12-28 03:58:36,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820f39f0f/ed7252af9c73436793c90d4d7bd4e3d2/FLAG0decba482 [2021-12-28 03:58:36,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820f39f0f/ed7252af9c73436793c90d4d7bd4e3d2 [2021-12-28 03:58:36,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:58:36,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:58:36,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:58:36,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:58:36,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:58:36,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:58:36" (1/1) ... [2021-12-28 03:58:36,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7a2639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:36, skipping insertion in model container [2021-12-28 03:58:36,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:58:36" (1/1) ... [2021-12-28 03:58:36,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:58:36,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:58:36,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_sdio.ko-entry_point.cil.out.i[209352,209365] [2021-12-28 03:58:37,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:58:37,643 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:58:37,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_sdio.ko-entry_point.cil.out.i[209352,209365] [2021-12-28 03:58:37,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:58:38,041 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:58:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38 WrapperNode [2021-12-28 03:58:38,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:58:38,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:58:38,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:58:38,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:58:38,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,278 INFO L137 Inliner]: procedures = 188, calls = 2240, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 4876 [2021-12-28 03:58:38,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:58:38,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:58:38,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:58:38,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:58:38,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:58:38,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:58:38,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:58:38,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:58:38,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (1/1) ... [2021-12-28 03:58:38,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:58:38,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:58:38,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:58:38,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:58:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-28 03:58:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-28 03:58:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2021-12-28 03:58:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2021-12-28 03:58:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:58:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_release_host [2021-12-28 03:58:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_release_host [2021-12-28 03:58:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_to_card [2021-12-28 03:58:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_to_card [2021-12-28 03:58:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:58:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:58:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 03:58:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 03:58:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:58:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_get_host_pm_caps [2021-12-28 03:58:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_get_host_pm_caps [2021-12-28 03:58:38,539 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_sync [2021-12-28 03:58:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_sync [2021-12-28 03:58:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:58:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:58:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_sdio_card_to_host [2021-12-28 03:58:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_sdio_card_to_host [2021-12-28 03:58:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure mp_tx_aggr_port_limit_reached [2021-12-28 03:58:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mp_tx_aggr_port_limit_reached [2021-12-28 03:58:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:58:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:58:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-12-28 03:58:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-12-28 03:58:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2021-12-28 03:58:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2021-12-28 03:58:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-28 03:58:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-28 03:58:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:58:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:58:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-28 03:58:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-28 03:58:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2021-12-28 03:58:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2021-12-28 03:58:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:58:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2021-12-28 03:58:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2021-12-28 03:58:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:58:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:58:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_data_sync [2021-12-28 03:58:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_data_sync [2021-12-28 03:58:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:58:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:58:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-12-28 03:58:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:58:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:58:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:58:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:58:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:58:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-28 03:58:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-28 03:58:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:58:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_release_irq [2021-12-28 03:58:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_release_irq [2021-12-28 03:58:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_disable_func [2021-12-28 03:58:38,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_disable_func [2021-12-28 03:58:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:58:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:58:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_claim_host [2021-12-28 03:58:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_claim_host [2021-12-28 03:58:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg_locked [2021-12-28 03:58:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg_locked [2021-12-28 03:58:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_sdio_cmdrsp_complete [2021-12-28 03:58:38,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_sdio_cmdrsp_complete [2021-12-28 03:58:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:58:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-28 03:58:38,545 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:58:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:58:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:58:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-28 03:58:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-28 03:58:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:58:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-28 03:58:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-28 03:58:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 03:58:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 03:58:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-28 03:58:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-28 03:58:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:58:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:58:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-28 03:58:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-28 03:58:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:58:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_host_to_card_mp_aggr [2021-12-28 03:58:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_host_to_card_mp_aggr [2021-12-28 03:58:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_sdio_resume [2021-12-28 03:58:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_sdio_resume [2021-12-28 03:58:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:58:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-12-28 03:58:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 03:58:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 03:58:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_decode_rx_packet [2021-12-28 03:58:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_decode_rx_packet [2021-12-28 03:58:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:58:38,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:58:39,133 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:58:39,135 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:58:39,267 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 03:58:44,820 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:58:44,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:58:44,830 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 03:58:44,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:44 BoogieIcfgContainer [2021-12-28 03:58:44,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:58:44,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:58:44,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:58:44,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:58:44,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:58:36" (1/3) ... [2021-12-28 03:58:44,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1702c2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:58:44, skipping insertion in model container [2021-12-28 03:58:44,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:58:38" (2/3) ... [2021-12-28 03:58:44,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1702c2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:58:44, skipping insertion in model container [2021-12-28 03:58:44,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:58:44" (3/3) ... [2021-12-28 03:58:44,838 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_sdio.ko-entry_point.cil.out.i [2021-12-28 03:58:44,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:58:44,841 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:58:44,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:58:44,878 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 [2021-12-28 03:58:44,878 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:58:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 1067 states, 834 states have (on average 1.4388489208633093) internal successors, (1200), 847 states have internal predecessors, (1200), 192 states have call successors, (192), 40 states have call predecessors, (192), 39 states have return successors, (186), 185 states have call predecessors, (186), 186 states have call successors, (186) [2021-12-28 03:58:44,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-28 03:58:44,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:44,910 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:58:44,910 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:44,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:44,914 INFO L85 PathProgramCache]: Analyzing trace with hash -601957003, now seen corresponding path program 1 times [2021-12-28 03:58:44,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:44,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047463890] [2021-12-28 03:58:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:44,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:58:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:45,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:58:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:58:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:58:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:58:45,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:58:45,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047463890] [2021-12-28 03:58:45,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047463890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:45,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:45,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:58:45,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691266253] [2021-12-28 03:58:45,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:45,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:58:45,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:58:45,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:58:45,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:58:45,495 INFO L87 Difference]: Start difference. First operand has 1067 states, 834 states have (on average 1.4388489208633093) internal successors, (1200), 847 states have internal predecessors, (1200), 192 states have call successors, (192), 40 states have call predecessors, (192), 39 states have return successors, (186), 185 states have call predecessors, (186), 186 states have call successors, (186) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-28 03:58:47,685 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 [] [2021-12-28 03:58:52,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:58:53,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:58:54,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:58:54,530 INFO L93 Difference]: Finished difference Result 3230 states and 4862 transitions. [2021-12-28 03:58:54,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:58:54,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2021-12-28 03:58:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:58:54,561 INFO L225 Difference]: With dead ends: 3230 [2021-12-28 03:58:54,562 INFO L226 Difference]: Without dead ends: 2148 [2021-12-28 03:58:54,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:58:54,575 INFO L933 BasicCegarLoop]: 1809 mSDtfsCounter, 1720 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 421 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 3982 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-12-28 03:58:54,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1842 Valid, 3982 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 955 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2021-12-28 03:58:54,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-28 03:58:54,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2066. [2021-12-28 03:58:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1626 states have (on average 1.4317343173431734) internal successors, (2328), 1636 states have internal predecessors, (2328), 363 states have call successors, (363), 77 states have call predecessors, (363), 76 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2021-12-28 03:58:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 3053 transitions. [2021-12-28 03:58:54,781 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 3053 transitions. Word has length 46 [2021-12-28 03:58:54,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:58:54,781 INFO L470 AbstractCegarLoop]: Abstraction has 2066 states and 3053 transitions. [2021-12-28 03:58:54,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-28 03:58:54,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 3053 transitions. [2021-12-28 03:58:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-28 03:58:54,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:58:54,788 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:58:54,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:58:54,789 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:58:54,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:58:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1981556391, now seen corresponding path program 1 times [2021-12-28 03:58:54,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:58:54,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739734037] [2021-12-28 03:58:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:58:54,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:58:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:54,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:58:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:54,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:58:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:55,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:58:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:58:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:58:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:58:55,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:58:55,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739734037] [2021-12-28 03:58:55,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739734037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:58:55,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:58:55,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:58:55,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456254657] [2021-12-28 03:58:55,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:58:55,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:58:55,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:58:55,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:58:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:58:55,051 INFO L87 Difference]: Start difference. First operand 2066 states and 3053 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-28 03:58:57,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:00,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:04,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:05,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:59:06,333 INFO L93 Difference]: Finished difference Result 6335 states and 9421 transitions. [2021-12-28 03:59:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:59:06,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2021-12-28 03:59:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:59:06,349 INFO L225 Difference]: With dead ends: 6335 [2021-12-28 03:59:06,349 INFO L226 Difference]: Without dead ends: 4271 [2021-12-28 03:59:06,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:59:06,353 INFO L933 BasicCegarLoop]: 1885 mSDtfsCounter, 1770 mSDsluCounter, 5273 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 403 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:59:06,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1895 Valid, 7158 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1817 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2021-12-28 03:59:06,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2021-12-28 03:59:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 4137. [2021-12-28 03:59:06,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 3257 states have (on average 1.431992631255757) internal successors, (4664), 3279 states have internal predecessors, (4664), 721 states have call successors, (721), 153 states have call predecessors, (721), 158 states have return successors, (738), 720 states have call predecessors, (738), 720 states have call successors, (738) [2021-12-28 03:59:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 6123 transitions. [2021-12-28 03:59:06,455 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 6123 transitions. Word has length 46 [2021-12-28 03:59:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:59:06,456 INFO L470 AbstractCegarLoop]: Abstraction has 4137 states and 6123 transitions. [2021-12-28 03:59:06,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-28 03:59:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 6123 transitions. [2021-12-28 03:59:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-28 03:59:06,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:59:06,466 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-12-28 03:59:06,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:59:06,466 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:59:06,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:59:06,467 INFO L85 PathProgramCache]: Analyzing trace with hash -642422905, now seen corresponding path program 1 times [2021-12-28 03:59:06,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:59:06,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751498344] [2021-12-28 03:59:06,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:59:06,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:59:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:59:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:59:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:59:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:59:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:59:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 03:59:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 03:59:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 03:59:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:59:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:59:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:59:06,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:59:06,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751498344] [2021-12-28 03:59:06,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751498344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:59:06,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:59:06,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:59:06,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414371984] [2021-12-28 03:59:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:59:06,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:59:06,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:59:06,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:59:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:59:06,784 INFO L87 Difference]: Start difference. First operand 4137 states and 6123 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 03:59:08,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:13,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:59:13,857 INFO L93 Difference]: Finished difference Result 6996 states and 10303 transitions. [2021-12-28 03:59:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:59:13,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2021-12-28 03:59:13,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:59:13,868 INFO L225 Difference]: With dead ends: 6996 [2021-12-28 03:59:13,869 INFO L226 Difference]: Without dead ends: 2871 [2021-12-28 03:59:13,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:59:13,878 INFO L933 BasicCegarLoop]: 1536 mSDtfsCounter, 768 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 458 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-28 03:59:13,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 3508 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 908 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-12-28 03:59:13,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-12-28 03:59:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2756. [2021-12-28 03:59:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2189 states have (on average 1.423937871174052) internal successors, (3117), 2202 states have internal predecessors, (3117), 446 states have call successors, (446), 118 states have call predecessors, (446), 120 states have return successors, (456), 443 states have call predecessors, (456), 445 states have call successors, (456) [2021-12-28 03:59:13,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 4019 transitions. [2021-12-28 03:59:13,967 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 4019 transitions. Word has length 103 [2021-12-28 03:59:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:59:13,969 INFO L470 AbstractCegarLoop]: Abstraction has 2756 states and 4019 transitions. [2021-12-28 03:59:13,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 03:59:13,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 4019 transitions. [2021-12-28 03:59:13,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-28 03:59:13,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:59:13,978 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:59:13,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:59:13,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:59:13,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:59:13,979 INFO L85 PathProgramCache]: Analyzing trace with hash 96929181, now seen corresponding path program 1 times [2021-12-28 03:59:13,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:59:13,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963515466] [2021-12-28 03:59:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:59:13,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:59:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:59:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:59:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:59:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:59:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:59:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 03:59:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 03:59:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 03:59:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 03:59:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 03:59:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 03:59:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 03:59:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:59:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:59:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-12-28 03:59:14,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:59:14,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963515466] [2021-12-28 03:59:14,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963515466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:59:14,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:59:14,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 03:59:14,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509130888] [2021-12-28 03:59:14,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:59:14,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:59:14,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:59:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:59:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:59:14,536 INFO L87 Difference]: Start difference. First operand 2756 states and 4019 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-28 03:59:16,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:20,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:59:20,221 INFO L93 Difference]: Finished difference Result 5380 states and 7886 transitions. [2021-12-28 03:59:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:59:20,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2021-12-28 03:59:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:59:20,233 INFO L225 Difference]: With dead ends: 5380 [2021-12-28 03:59:20,233 INFO L226 Difference]: Without dead ends: 2846 [2021-12-28 03:59:20,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-28 03:59:20,241 INFO L933 BasicCegarLoop]: 1501 mSDtfsCounter, 313 mSDsluCounter, 4520 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 384 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 6021 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-28 03:59:20,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 6021 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1454 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-12-28 03:59:20,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2021-12-28 03:59:20,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2756. [2021-12-28 03:59:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2187 states have (on average 1.4224965706447188) internal successors, (3111), 2201 states have internal predecessors, (3111), 446 states have call successors, (446), 118 states have call predecessors, (446), 122 states have return successors, (462), 444 states have call predecessors, (462), 445 states have call successors, (462) [2021-12-28 03:59:20,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 4019 transitions. [2021-12-28 03:59:20,303 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 4019 transitions. Word has length 144 [2021-12-28 03:59:20,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:59:20,305 INFO L470 AbstractCegarLoop]: Abstraction has 2756 states and 4019 transitions. [2021-12-28 03:59:20,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-28 03:59:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 4019 transitions. [2021-12-28 03:59:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-28 03:59:20,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:59:20,310 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:59:20,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:59:20,312 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:59:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:59:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash 36910958, now seen corresponding path program 1 times [2021-12-28 03:59:20,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:59:20,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955285189] [2021-12-28 03:59:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:59:20,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:59:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:59:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:59:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:59:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:59:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:59:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 03:59:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 03:59:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 03:59:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 03:59:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 03:59:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 03:59:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 03:59:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:22,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:59:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:22,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:59:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:59:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:59:22,294 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-12-28 03:59:22,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:59:22,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955285189] [2021-12-28 03:59:22,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955285189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:59:22,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:59:22,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-28 03:59:22,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918943604] [2021-12-28 03:59:22,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:59:22,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-28 03:59:22,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:59:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-28 03:59:22,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-12-28 03:59:22,296 INFO L87 Difference]: Start difference. First operand 2756 states and 4019 transitions. Second operand has 17 states, 16 states have (on average 6.0) internal successors, (96), 11 states have internal predecessors, (96), 3 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 03:59:24,544 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 [] [2021-12-28 03:59:26,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:32,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:36,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:41,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:59:44,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []