./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.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 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:14:50,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:14:50,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:14:50,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:14:50,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:14:50,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:14:50,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:14:50,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:14:50,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:14:50,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:14:50,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:14:50,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:14:50,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:14:50,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:14:50,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:14:50,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:14:50,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:14:50,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:14:50,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:14:50,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:14:50,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:14:50,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:14:50,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:14:50,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:14:50,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:14:50,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:14:50,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:14:50,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:14:50,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:14:50,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:14:50,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:14:50,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:14:50,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:14:50,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:14:50,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:14:50,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:14:50,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:14:50,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:14:50,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:14:50,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:14:50,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:14:50,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:14:50,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:14:50,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:14:50,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:14:50,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:14:50,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:14:50,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:14:50,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:14:50,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:14:50,316 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:14:50,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:14:50,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:14:50,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:14:50,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:14:50,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:14:50,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:14:50,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:14:50,318 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:14:50,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:14:50,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:14:50,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:14:50,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:14:50,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:14:50,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:14:50,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:14:50,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:14:50,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:14:50,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:14:50,321 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:14:50,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:14:50,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:14:50,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:14:50,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 [2021-12-21 16:14:50,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:14:50,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:14:50,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:14:50,578 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:14:50,579 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:14:50,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-12-21 16:14:50,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57d240fa6/ba8d00d344f549d1a03bdbf38f015c26/FLAGb2d36446c [2021-12-21 16:14:51,297 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:14:51,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-12-21 16:14:51,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57d240fa6/ba8d00d344f549d1a03bdbf38f015c26/FLAGb2d36446c [2021-12-21 16:14:51,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57d240fa6/ba8d00d344f549d1a03bdbf38f015c26 [2021-12-21 16:14:51,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:14:51,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:14:51,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:14:51,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:14:51,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:14:51,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:14:51" (1/1) ... [2021-12-21 16:14:51,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2061e103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:51, skipping insertion in model container [2021-12-21 16:14:51,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:14:51" (1/1) ... [2021-12-21 16:14:51,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:14:51,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:14:52,165 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-12-21 16:14:52,169 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-12-21 16:14:52,692 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-12-21 16:14:54,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:14:54,275 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:14:54,341 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-12-21 16:14:54,342 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-12-21 16:14:54,353 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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-12-21 16:14:54,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:14:54,720 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:14:54,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54 WrapperNode [2021-12-21 16:14:54,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:14:54,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:14:54,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:14:54,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:14:54,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:54,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,063 INFO L137 Inliner]: procedures = 362, calls = 6469, calls flagged for inlining = 182, calls inlined = 134, statements flattened = 9215 [2021-12-21 16:14:55,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:14:55,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:14:55,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:14:55,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:14:55,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:14:55,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:14:55,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:14:55,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:14:55,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (1/1) ... [2021-12-21 16:14:55,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:14:55,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:14:55,376 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) [2021-12-21 16:14:55,384 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 [2021-12-21 16:14:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-21 16:14:55,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-21 16:14:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-12-21 16:14:55,413 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-12-21 16:14:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2021-12-21 16:14:55,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2021-12-21 16:14:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-21 16:14:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:14:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:14:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2021-12-21 16:14:55,414 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2021-12-21 16:14:55,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 16:14:55,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 16:14:55,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:14:55,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:14:55,414 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2021-12-21 16:14:55,414 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2021-12-21 16:14:55,414 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-21 16:14:55,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-21 16:14:55,415 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-21 16:14:55,415 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-21 16:14:55,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:14:55,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:14:55,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:14:55,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:14:55,415 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2021-12-21 16:14:55,415 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2021-12-21 16:14:55,416 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2021-12-21 16:14:55,416 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2021-12-21 16:14:55,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-21 16:14:55,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-21 16:14:55,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:14:55,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:14:55,416 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2021-12-21 16:14:55,416 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2021-12-21 16:14:55,416 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 16:14:55,417 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 16:14:55,417 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-12-21 16:14:55,417 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-12-21 16:14:55,417 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2021-12-21 16:14:55,417 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2021-12-21 16:14:55,417 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-12-21 16:14:55,417 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-12-21 16:14:55,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-12-21 16:14:55,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-12-21 16:14:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:14:55,418 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:14:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2021-12-21 16:14:55,418 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2021-12-21 16:14:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:14:55,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:14:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 16:14:55,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 16:14:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-21 16:14:55,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-21 16:14:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2021-12-21 16:14:55,419 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2021-12-21 16:14:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2021-12-21 16:14:55,419 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2021-12-21 16:14:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2021-12-21 16:14:55,419 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2021-12-21 16:14:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-21 16:14:55,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-21 16:14:55,420 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-12-21 16:14:55,420 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-12-21 16:14:55,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:14:55,420 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:14:55,420 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:14:55,420 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2021-12-21 16:14:55,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2021-12-21 16:14:55,420 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2021-12-21 16:14:55,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2021-12-21 16:14:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-21 16:14:55,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-21 16:14:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-21 16:14:55,421 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-21 16:14:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:14:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 16:14:55,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 16:14:55,421 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2021-12-21 16:14:55,421 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2021-12-21 16:14:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-21 16:14:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-21 16:14:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-21 16:14:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-21 16:14:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:14:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:14:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-21 16:14:55,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-21 16:14:55,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:14:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 16:14:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 16:14:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:14:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-21 16:14:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-21 16:14:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-12-21 16:14:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-12-21 16:14:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-12-21 16:14:55,423 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:14:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:14:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2021-12-21 16:14:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2021-12-21 16:14:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2021-12-21 16:14:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2021-12-21 16:14:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2021-12-21 16:14:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2021-12-21 16:14:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-21 16:14:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-21 16:14:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-12-21 16:14:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-12-21 16:14:55,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:14:55,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-21 16:14:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-21 16:14:55,425 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-21 16:14:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-21 16:14:55,425 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-12-21 16:14:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-12-21 16:14:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:14:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:14:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-12-21 16:14:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-12-21 16:14:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:14:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-21 16:14:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-21 16:14:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure skd_restart_device [2021-12-21 16:14:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_restart_device [2021-12-21 16:14:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:14:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-21 16:14:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-21 16:14:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:14:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:14:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2021-12-21 16:14:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2021-12-21 16:14:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:14:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:14:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-21 16:14:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-21 16:14:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-21 16:14:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-21 16:14:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-21 16:14:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-21 16:14:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2021-12-21 16:14:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2021-12-21 16:14:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:14:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:14:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 16:14:55,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 16:14:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:14:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 16:14:55,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 16:14:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-21 16:14:55,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-21 16:14:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2021-12-21 16:14:55,429 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2021-12-21 16:14:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2021-12-21 16:14:55,430 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2021-12-21 16:14:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:14:55,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:14:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2021-12-21 16:14:55,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2021-12-21 16:14:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2021-12-21 16:14:55,430 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2021-12-21 16:14:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-21 16:14:55,430 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-21 16:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2021-12-21 16:14:55,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2021-12-21 16:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2021-12-21 16:14:55,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2021-12-21 16:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2021-12-21 16:14:55,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2021-12-21 16:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-21 16:14:55,431 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-21 16:14:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:14:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2021-12-21 16:14:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2021-12-21 16:14:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-21 16:14:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-21 16:14:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:14:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-12-21 16:14:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-12-21 16:14:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:14:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-21 16:14:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-21 16:14:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-21 16:14:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-21 16:14:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-21 16:14:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-21 16:14:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-21 16:14:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-21 16:14:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2021-12-21 16:14:55,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2021-12-21 16:14:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-21 16:14:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-21 16:14:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2021-12-21 16:14:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2021-12-21 16:14:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2021-12-21 16:14:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2021-12-21 16:14:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2021-12-21 16:14:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2021-12-21 16:14:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 16:14:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 16:14:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 16:14:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 16:14:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-12-21 16:14:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-12-21 16:14:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:14:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:14:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-12-21 16:14:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-12-21 16:14:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-21 16:14:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-21 16:14:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 16:14:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 16:14:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-21 16:14:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-21 16:14:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-21 16:14:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-21 16:14:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2021-12-21 16:14:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2021-12-21 16:14:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-21 16:14:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-21 16:14:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:14:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2021-12-21 16:14:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2021-12-21 16:14:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2021-12-21 16:14:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2021-12-21 16:14:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-21 16:14:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-21 16:14:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:14:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:14:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-12-21 16:14:55,438 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-12-21 16:14:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2021-12-21 16:14:55,438 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2021-12-21 16:14:56,107 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:14:56,110 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:14:56,302 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:14:56,425 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 4 == __copy_to_user_nocheck_~size#1; [2021-12-21 16:14:56,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467: SUMMARY for call __copy_to_user_nocheck_#t~ret286#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-12-21 16:14:56,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret286#1 && __copy_to_user_nocheck_#t~ret286#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret286#1;havoc __copy_to_user_nocheck_#t~ret286#1; [2021-12-21 16:14:56,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455: SUMMARY for call __copy_to_user_nocheck_#t~ret285#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-12-21 16:14:56,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret285#1 && __copy_to_user_nocheck_#t~ret285#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret285#1;havoc __copy_to_user_nocheck_#t~ret285#1; [2021-12-21 16:14:56,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,426 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 2 == __copy_to_user_nocheck_~size#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume !__copy_to_user_nocheck_#t~switch284#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435: havoc __copy_to_user_nocheck_#t~switch284#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume 0 != __copy_to_user_nocheck_~tmp___1~7#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume !(0 != __copy_to_user_nocheck_~tmp___1~7#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := true; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume 0 != __copy_to_user_nocheck_~tmp___0~11#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,427 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume !(0 != __copy_to_user_nocheck_~tmp___0~11#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 16 == __copy_to_user_nocheck_~size#1; [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 10 == __copy_to_user_nocheck_~size#1; [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477: SUMMARY for call __copy_to_user_nocheck_#t~ret287#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 8 == __copy_to_user_nocheck_~size#1; [2021-12-21 16:14:56,428 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477-1: __copy_to_user_nocheck_~tmp___2~3#1 := __copy_to_user_nocheck_#t~ret287#1;havoc __copy_to_user_nocheck_#t~ret287#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-21 16:14:58,119 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362: havoc __copy_from_user_nocheck_#t~switch278#1; [2021-12-21 16:14:58,119 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387: SUMMARY for call __copy_from_user_nocheck_#t~ret279#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret279#1 && __copy_from_user_nocheck_#t~ret279#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret279#1;havoc __copy_from_user_nocheck_#t~ret279#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 16 == __copy_from_user_nocheck_~size#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret280#1 && __copy_from_user_nocheck_#t~ret280#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret280#1;havoc __copy_from_user_nocheck_#t~ret280#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400: SUMMARY for call __copy_from_user_nocheck_#t~ret280#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := true; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume 0 != __copy_from_user_nocheck_~tmp___0~10#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume !(0 != __copy_from_user_nocheck_~tmp___0~10#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume !__copy_from_user_nocheck_#t~switch278#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume 0 != __copy_from_user_nocheck_~tmp___1~6#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume !(0 != __copy_from_user_nocheck_~tmp___1~6#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 4 == __copy_from_user_nocheck_~size#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410: SUMMARY for call __copy_from_user_nocheck_#t~ret281#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-12-21 16:14:58,120 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 2 == __copy_from_user_nocheck_~size#1; [2021-12-21 16:14:58,121 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410-1: __copy_from_user_nocheck_~tmp___2~2#1 := __copy_from_user_nocheck_#t~ret281#1;havoc __copy_from_user_nocheck_#t~ret281#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-21 16:14:58,121 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,121 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 8 == __copy_from_user_nocheck_~size#1; [2021-12-21 16:14:58,121 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-21 16:14:58,121 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 10 == __copy_from_user_nocheck_~size#1; [2021-12-21 16:15:02,841 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:15:02,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:15:02,854 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 16:15:02,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:15:02 BoogieIcfgContainer [2021-12-21 16:15:02,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:15:02,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:15:02,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:15:02,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:15:02,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:14:51" (1/3) ... [2021-12-21 16:15:02,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c8e230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:15:02, skipping insertion in model container [2021-12-21 16:15:02,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:14:54" (2/3) ... [2021-12-21 16:15:02,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c8e230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:15:02, skipping insertion in model container [2021-12-21 16:15:02,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:15:02" (3/3) ... [2021-12-21 16:15:02,863 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-12-21 16:15:02,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:15:02,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:15:02,905 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:15:02,909 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 [2021-12-21 16:15:02,910 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:15:02,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 2309 states, 1684 states have (on average 1.3640142517814726) internal successors, (2297), 1728 states have internal predecessors, (2297), 516 states have call successors, (516), 108 states have call predecessors, (516), 107 states have return successors, (511), 499 states have call predecessors, (511), 511 states have call successors, (511) [2021-12-21 16:15:02,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-21 16:15:02,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:15:02,977 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-21 16:15:02,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:15:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:15:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash 799047285, now seen corresponding path program 1 times [2021-12-21 16:15:02,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:15:02,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619882674] [2021-12-21 16:15:02,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:15:02,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:15:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:15:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:15:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:15:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:15:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 16:15:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 16:15:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 16:15:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 16:15:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 16:15:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-21 16:15:03,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:15:03,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619882674] [2021-12-21 16:15:03,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619882674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:15:03,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:15:03,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:15:03,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246377608] [2021-12-21 16:15:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:15:03,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:15:03,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:15:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:15:03,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:15:03,793 INFO L87 Difference]: Start difference. First operand has 2309 states, 1684 states have (on average 1.3640142517814726) internal successors, (2297), 1728 states have internal predecessors, (2297), 516 states have call successors, (516), 108 states have call predecessors, (516), 107 states have return successors, (511), 499 states have call predecessors, (511), 511 states have call successors, (511) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:15:06,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:15,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:15:15,570 INFO L93 Difference]: Finished difference Result 6204 states and 9077 transitions. [2021-12-21 16:15:15,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:15:15,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2021-12-21 16:15:15,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:15:15,613 INFO L225 Difference]: With dead ends: 6204 [2021-12-21 16:15:15,614 INFO L226 Difference]: Without dead ends: 3855 [2021-12-21 16:15:15,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:15:15,629 INFO L933 BasicCegarLoop]: 3488 mSDtfsCounter, 3383 mSDsluCounter, 5653 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 1905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 9141 SdHoareTripleChecker+Invalid, 5238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1905 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:15:15,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 9141 Invalid, 5238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1905 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2021-12-21 16:15:15,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2021-12-21 16:15:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3536. [2021-12-21 16:15:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2610 states have (on average 1.3689655172413793) internal successors, (3573), 2669 states have internal predecessors, (3573), 749 states have call successors, (749), 177 states have call predecessors, (749), 176 states have return successors, (748), 726 states have call predecessors, (748), 748 states have call successors, (748) [2021-12-21 16:15:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5070 transitions. [2021-12-21 16:15:15,858 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5070 transitions. Word has length 78 [2021-12-21 16:15:15,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:15:15,859 INFO L470 AbstractCegarLoop]: Abstraction has 3536 states and 5070 transitions. [2021-12-21 16:15:15,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:15:15,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5070 transitions. [2021-12-21 16:15:15,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-21 16:15:15,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:15:15,871 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:15:15,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:15:15,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:15:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:15:15,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1465883832, now seen corresponding path program 1 times [2021-12-21 16:15:15,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:15:15,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718519458] [2021-12-21 16:15:15,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:15:15,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:15:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:15:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:15:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:15:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:15:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 16:15:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 16:15:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-21 16:15:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:15:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 16:15:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 16:15:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 16:15:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:15:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:15:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-21 16:15:16,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:15:16,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718519458] [2021-12-21 16:15:16,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718519458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:15:16,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:15:16,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:15:16,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656596532] [2021-12-21 16:15:16,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:15:16,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:15:16,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:15:16,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:15:16,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:15:16,314 INFO L87 Difference]: Start difference. First operand 3536 states and 5070 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 16:15:19,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:21,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:23,118 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 [] [2021-12-21 16:15:36,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:15:36,740 INFO L93 Difference]: Finished difference Result 10245 states and 14911 transitions. [2021-12-21 16:15:36,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 16:15:36,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2021-12-21 16:15:36,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:15:36,778 INFO L225 Difference]: With dead ends: 10245 [2021-12-21 16:15:36,778 INFO L226 Difference]: Without dead ends: 6728 [2021-12-21 16:15:36,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-21 16:15:36,796 INFO L933 BasicCegarLoop]: 4036 mSDtfsCounter, 5438 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 6755 mSolverCounterSat, 3516 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5865 SdHoareTripleChecker+Valid, 9898 SdHoareTripleChecker+Invalid, 10273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3516 IncrementalHoareTripleChecker+Valid, 6755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-12-21 16:15:36,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5865 Valid, 9898 Invalid, 10273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3516 Valid, 6755 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2021-12-21 16:15:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6728 states. [2021-12-21 16:15:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6728 to 6101. [2021-12-21 16:15:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4485 states have (on average 1.3683389074693422) internal successors, (6137), 4602 states have internal predecessors, (6137), 1298 states have call successors, (1298), 318 states have call predecessors, (1298), 317 states have return successors, (1297), 1252 states have call predecessors, (1297), 1297 states have call successors, (1297) [2021-12-21 16:15:37,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8732 transitions. [2021-12-21 16:15:37,074 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8732 transitions. Word has length 119 [2021-12-21 16:15:37,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:15:37,076 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8732 transitions. [2021-12-21 16:15:37,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 16:15:37,076 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8732 transitions. [2021-12-21 16:15:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-21 16:15:37,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:15:37,086 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-21 16:15:37,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:15:37,088 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:15:37,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:15:37,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1870804088, now seen corresponding path program 1 times [2021-12-21 16:15:37,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:15:37,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114063367] [2021-12-21 16:15:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:15:37,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:15:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:15:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:15:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:15:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:15:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 16:15:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 16:15:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:15:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-21 16:15:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 16:15:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 16:15:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 16:15:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-21 16:15:37,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:15:37,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114063367] [2021-12-21 16:15:37,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114063367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:15:37,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:15:37,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:15:37,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350058133] [2021-12-21 16:15:37,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:15:37,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:15:37,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:15:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:15:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:15:37,493 INFO L87 Difference]: Start difference. First operand 6101 states and 8732 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-21 16:15:45,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:15:47,097 INFO L93 Difference]: Finished difference Result 12789 states and 18540 transitions. [2021-12-21 16:15:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:15:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2021-12-21 16:15:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:15:47,130 INFO L225 Difference]: With dead ends: 12789 [2021-12-21 16:15:47,130 INFO L226 Difference]: Without dead ends: 6711 [2021-12-21 16:15:47,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:15:47,155 INFO L933 BasicCegarLoop]: 3127 mSDtfsCounter, 3992 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 1439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4371 SdHoareTripleChecker+Valid, 5855 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:15:47,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4371 Valid, 5855 Invalid, 3606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1439 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2021-12-21 16:15:47,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2021-12-21 16:15:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6101. [2021-12-21 16:15:47,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4485 states have (on average 1.3674470457079153) internal successors, (6133), 4602 states have internal predecessors, (6133), 1298 states have call successors, (1298), 318 states have call predecessors, (1298), 317 states have return successors, (1297), 1252 states have call predecessors, (1297), 1297 states have call successors, (1297) [2021-12-21 16:15:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8728 transitions. [2021-12-21 16:15:47,499 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8728 transitions. Word has length 116 [2021-12-21 16:15:47,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:15:47,501 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8728 transitions. [2021-12-21 16:15:47,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-21 16:15:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8728 transitions. [2021-12-21 16:15:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-21 16:15:47,507 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:15:47,508 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-21 16:15:47,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:15:47,508 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:15:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:15:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash -983581242, now seen corresponding path program 1 times [2021-12-21 16:15:47,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:15:47,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244216822] [2021-12-21 16:15:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:15:47,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:15:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:15:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:15:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:15:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:15:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 16:15:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 16:15:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:15:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-21 16:15:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 16:15:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 16:15:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 16:15:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-21 16:15:47,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:15:47,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244216822] [2021-12-21 16:15:47,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244216822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:15:47,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:15:47,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:15:47,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043197351] [2021-12-21 16:15:47,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:15:47,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:15:47,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:15:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:15:47,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:15:47,850 INFO L87 Difference]: Start difference. First operand 6101 states and 8728 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-21 16:15:50,605 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 []