./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 04:01:18,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:01:18,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:01:19,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:01:19,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:01:19,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:01:19,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:01:19,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:01:19,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:01:19,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:01:19,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:01:19,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:01:19,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:01:19,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:01:19,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:01:19,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:01:19,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:01:19,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:01:19,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:01:19,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:01:19,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:01:19,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:01:19,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:01:19,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:01:19,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:01:19,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:01:19,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:01:19,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:01:19,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:01:19,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:01:19,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:01:19,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:01:19,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:01:19,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:01:19,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:01:19,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:01:19,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:01:19,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:01:19,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:01:19,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:01:19,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:01:19,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:01:19,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:01:19,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:01:19,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:01:19,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:01:19,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:01:19,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:01:19,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:01:19,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:01:19,086 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:01:19,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:01:19,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:01:19,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:01:19,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:01:19,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:01:19,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:01:19,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:01:19,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:01:19,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:01:19,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:01:19,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:01:19,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:01:19,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:01:19,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:01:19,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:01:19,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:01:19,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:01:19,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:01:19,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:01:19,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:01:19,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:01:19,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:01:19,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 [2021-12-16 04:01:19,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:01:19,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:01:19,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:01:19,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:01:19,368 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:01:19,369 INFO L432 ainManager$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 [2021-12-16 04:01:19,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1355e8b/1241275ccd2a4abb80c22434b1c635f6/FLAG0b12451a5 [2021-12-16 04:01:20,173 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:01:20,174 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 [2021-12-16 04:01:20,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1355e8b/1241275ccd2a4abb80c22434b1c635f6/FLAG0b12451a5 [2021-12-16 04:01:20,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1355e8b/1241275ccd2a4abb80c22434b1c635f6 [2021-12-16 04:01:20,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:01:20,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:01:20,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:01:20,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:01:20,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:01:20,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:01:20" (1/1) ... [2021-12-16 04:01:20,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a514fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:20, skipping insertion in model container [2021-12-16 04:01:20,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:01:20" (1/1) ... [2021-12-16 04:01:20,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:01:20,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:01:21,069 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-12-16 04:01:21,069 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] [2021-12-16 04:01:21,530 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] [2021-12-16 04:01:22,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:01:22,981 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:01:23,050 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-12-16 04:01:23,051 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] [2021-12-16 04:01:23,063 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] [2021-12-16 04:01:23,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:01:23,556 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:01:23,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23 WrapperNode [2021-12-16 04:01:23,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:01:23,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:01:23,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:01:23,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:01:23,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:23,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:23,944 INFO L137 Inliner]: procedures = 362, calls = 6469, calls flagged for inlining = 182, calls inlined = 134, statements flattened = 9215 [2021-12-16 04:01:23,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:01:23,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:01:23,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:01:23,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:01:23,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:23,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:24,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:24,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:24,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:24,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:24,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:24,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:01:24,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:01:24,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:01:24,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:01:24,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (1/1) ... [2021-12-16 04:01:24,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:01:24,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:01:24,409 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) [2021-12-16 04:01:24,427 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 [2021-12-16 04:01:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-16 04:01:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-16 04:01:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-12-16 04:01:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-12-16 04:01:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2021-12-16 04:01:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2021-12-16 04:01:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-16 04:01:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:01:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:01:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2021-12-16 04:01:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2021-12-16 04:01:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-16 04:01:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-16 04:01:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:01:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:01:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2021-12-16 04:01:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2021-12-16 04:01:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-16 04:01:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-16 04:01:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 04:01:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 04:01:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:01:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:01:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:01:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:01:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2021-12-16 04:01:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2021-12-16 04:01:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2021-12-16 04:01:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2021-12-16 04:01:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-16 04:01:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-16 04:01:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:01:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:01:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2021-12-16 04:01:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2021-12-16 04:01:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:01:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:01:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-12-16 04:01:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-12-16 04:01:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2021-12-16 04:01:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2021-12-16 04:01:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-12-16 04:01:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-12-16 04:01:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-12-16 04:01:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-12-16 04:01:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:01:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:01:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2021-12-16 04:01:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2021-12-16 04:01:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:01:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:01:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-16 04:01:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-16 04:01:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 04:01:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 04:01:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2021-12-16 04:01:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2021-12-16 04:01:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2021-12-16 04:01:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2021-12-16 04:01:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2021-12-16 04:01:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2021-12-16 04:01:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-16 04:01:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-16 04:01:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-12-16 04:01:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-12-16 04:01:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:01:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:01:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:01:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2021-12-16 04:01:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2021-12-16 04:01:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2021-12-16 04:01:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2021-12-16 04:01:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-16 04:01:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-16 04:01:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-16 04:01:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-16 04:01:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:01:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 04:01:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 04:01:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2021-12-16 04:01:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2021-12-16 04:01:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:01:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:01:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-16 04:01:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-16 04:01:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:01:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:01:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-16 04:01:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-16 04:01:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:01:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-16 04:01:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-16 04:01:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:01:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 04:01:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 04:01:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-12-16 04:01:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-12-16 04:01:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-12-16 04:01:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 04:01:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 04:01:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2021-12-16 04:01:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2021-12-16 04:01:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2021-12-16 04:01:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2021-12-16 04:01:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2021-12-16 04:01:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2021-12-16 04:01:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-16 04:01:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-16 04:01:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-12-16 04:01:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-12-16 04:01:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:01:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:01:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:01:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 04:01:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 04:01:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-12-16 04:01:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-12-16 04:01:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:01:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:01:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-12-16 04:01:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-12-16 04:01:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:01:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-16 04:01:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-16 04:01:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure skd_restart_device [2021-12-16 04:01:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_restart_device [2021-12-16 04:01:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:01:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-16 04:01:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-16 04:01:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 04:01:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 04:01:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2021-12-16 04:01:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2021-12-16 04:01:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:01:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:01:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-16 04:01:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-16 04:01:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-16 04:01:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-16 04:01:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-16 04:01:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-16 04:01:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2021-12-16 04:01:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2021-12-16 04:01:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:01:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:01:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 04:01:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 04:01:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:01:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 04:01:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 04:01:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-16 04:01:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-16 04:01:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2021-12-16 04:01:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2021-12-16 04:01:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2021-12-16 04:01:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2021-12-16 04:01:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:01:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:01:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2021-12-16 04:01:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2021-12-16 04:01:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2021-12-16 04:01:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2021-12-16 04:01:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-16 04:01:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-16 04:01:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2021-12-16 04:01:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2021-12-16 04:01:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2021-12-16 04:01:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2021-12-16 04:01:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2021-12-16 04:01:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2021-12-16 04:01:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:01:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-16 04:01:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-16 04:01:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:01:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2021-12-16 04:01:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2021-12-16 04:01:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-16 04:01:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-16 04:01:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:01:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-12-16 04:01:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-12-16 04:01:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 04:01:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-16 04:01:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-16 04:01:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-16 04:01:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-16 04:01:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-16 04:01:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-16 04:01:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-16 04:01:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-16 04:01:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2021-12-16 04:01:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2021-12-16 04:01:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 04:01:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 04:01:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2021-12-16 04:01:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2021-12-16 04:01:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2021-12-16 04:01:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2021-12-16 04:01:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2021-12-16 04:01:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2021-12-16 04:01:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-16 04:01:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-16 04:01:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:01:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:01:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-12-16 04:01:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-12-16 04:01:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-16 04:01:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-16 04:01:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-12-16 04:01:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-12-16 04:01:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-16 04:01:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-16 04:01:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-16 04:01:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-16 04:01:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-16 04:01:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-16 04:01:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 04:01:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 04:01:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2021-12-16 04:01:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2021-12-16 04:01:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-16 04:01:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-16 04:01:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:01:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2021-12-16 04:01:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2021-12-16 04:01:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2021-12-16 04:01:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2021-12-16 04:01:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-16 04:01:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-16 04:01:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:01:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:01:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-12-16 04:01:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-12-16 04:01:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2021-12-16 04:01:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2021-12-16 04:01:25,331 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:01:25,336 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:01:25,579 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:01:25,765 INFO L768 $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; [2021-12-16 04:01:25,765 INFO L768 $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; [2021-12-16 04:01:25,765 INFO L768 $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 [2021-12-16 04:01:25,766 INFO L768 $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; [2021-12-16 04:01:25,769 INFO L768 $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 [2021-12-16 04:01:25,769 INFO L768 $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; [2021-12-16 04:01:25,769 INFO L768 $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; [2021-12-16 04:01:25,769 INFO L768 $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; [2021-12-16 04:01:25,769 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-16 04:01:25,770 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume !__copy_to_user_nocheck_#t~switch284#1; [2021-12-16 04:01:25,770 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435: havoc __copy_to_user_nocheck_#t~switch284#1; [2021-12-16 04:01:25,770 INFO L768 $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; [2021-12-16 04:01:25,770 INFO L768 $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; [2021-12-16 04:01:25,771 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-16 04:01:25,771 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := true; [2021-12-16 04:01:25,771 INFO L768 $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; [2021-12-16 04:01:25,771 INFO L768 $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; [2021-12-16 04:01:25,772 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-16 04:01:25,772 INFO L768 $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; [2021-12-16 04:01:25,772 INFO L768 $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; [2021-12-16 04:01:25,772 INFO L768 $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; [2021-12-16 04:01:25,772 INFO L768 $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 [2021-12-16 04:01:25,772 INFO L768 $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; [2021-12-16 04:01:25,772 INFO L768 $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; [2021-12-16 04:01:25,773 INFO L768 $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); [2021-12-16 04:01:27,689 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362: havoc __copy_from_user_nocheck_#t~switch278#1; [2021-12-16 04:01:27,689 INFO L768 $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 [2021-12-16 04:01:27,689 INFO L768 $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; [2021-12-16 04:01:27,689 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-16 04:01:27,689 INFO L768 $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; [2021-12-16 04:01:27,689 INFO L768 $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; [2021-12-16 04:01:27,690 INFO L768 $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 [2021-12-16 04:01:27,690 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-16 04:01:27,690 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := true; [2021-12-16 04:01:27,690 INFO L768 $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; [2021-12-16 04:01:27,690 INFO L768 $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; [2021-12-16 04:01:27,690 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-16 04:01:27,690 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume !__copy_from_user_nocheck_#t~switch278#1; [2021-12-16 04:01:27,690 INFO L768 $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; [2021-12-16 04:01:27,690 INFO L768 $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; [2021-12-16 04:01:27,690 INFO L768 $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; [2021-12-16 04:01:27,690 INFO L768 $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; [2021-12-16 04:01:27,691 INFO L768 $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; [2021-12-16 04:01:27,691 INFO L768 $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 [2021-12-16 04:01:27,691 INFO L768 $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; [2021-12-16 04:01:27,691 INFO L768 $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); [2021-12-16 04:01:27,691 INFO L768 $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; [2021-12-16 04:01:27,691 INFO L768 $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; [2021-12-16 04:01:27,691 INFO L768 $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; [2021-12-16 04:01:27,691 INFO L768 $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; [2021-12-16 04:01:31,961 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:01:31,986 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:01:31,987 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 04:01:31,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:01:31 BoogieIcfgContainer [2021-12-16 04:01:31,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:01:31,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:01:31,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:01:31,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:01:31,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:01:20" (1/3) ... [2021-12-16 04:01:31,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f017048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:01:31, skipping insertion in model container [2021-12-16 04:01:31,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:23" (2/3) ... [2021-12-16 04:01:31,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f017048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:01:31, skipping insertion in model container [2021-12-16 04:01:31,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:01:31" (3/3) ... [2021-12-16 04:01:32,000 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 [2021-12-16 04:01:32,004 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:01:32,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:01:32,052 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:01:32,057 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 [2021-12-16 04:01:32,058 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:01:32,128 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) [2021-12-16 04:01:32,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-16 04:01:32,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:01:32,149 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] [2021-12-16 04:01:32,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:01:32,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:01:32,154 INFO L85 PathProgramCache]: Analyzing trace with hash 799047285, now seen corresponding path program 1 times [2021-12-16 04:01:32,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:01:32,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22102880] [2021-12-16 04:01:32,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:01:32,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:01:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:01:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:01:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 04:01:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:01:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:01:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 04:01:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 04:01:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 04:01:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 04:01:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 04:01:32,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:01:33,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22102880] [2021-12-16 04:01:33,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22102880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:01:33,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:01:33,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:01:33,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837644798] [2021-12-16 04:01:33,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:01:33,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:01:33,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:01:33,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:01:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:01:33,042 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) [2021-12-16 04:01:45,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:01:45,438 INFO L93 Difference]: Finished difference Result 6204 states and 9077 transitions. [2021-12-16 04:01:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:01:45,440 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 [2021-12-16 04:01:45,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:01:45,489 INFO L225 Difference]: With dead ends: 6204 [2021-12-16 04:01:45,489 INFO L226 Difference]: Without dead ends: 3855 [2021-12-16 04:01:45,510 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 [2021-12-16 04:01:45,514 INFO L933 BasicCegarLoop]: 3504 mSDtfsCounter, 3382 mSDsluCounter, 5691 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 1902 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 9195 SdHoareTripleChecker+Invalid, 5244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1902 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:01:45,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 9195 Invalid, 5244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1902 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2021-12-16 04:01:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2021-12-16 04:01:45,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3536. [2021-12-16 04:01:45,797 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) [2021-12-16 04:01:45,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5070 transitions. [2021-12-16 04:01:45,827 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5070 transitions. Word has length 78 [2021-12-16 04:01:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:01:45,828 INFO L470 AbstractCegarLoop]: Abstraction has 3536 states and 5070 transitions. [2021-12-16 04:01:45,829 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) [2021-12-16 04:01:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5070 transitions. [2021-12-16 04:01:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-16 04:01:45,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:01:45,846 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] [2021-12-16 04:01:45,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:01:45,846 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:01:45,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:01:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1465883832, now seen corresponding path program 1 times [2021-12-16 04:01:45,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:01:45,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682385863] [2021-12-16 04:01:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:01:45,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:01:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:01:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:01:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 04:01:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:01:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 04:01:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 04:01:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 04:01:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:01:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 04:01:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 04:01:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 04:01:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:01:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:01:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:01:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-16 04:01:46,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:01:46,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682385863] [2021-12-16 04:01:46,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682385863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:01:46,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:01:46,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:01:46,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847795523] [2021-12-16 04:01:46,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:01:46,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:01:46,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:01:46,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:01:46,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:01:46,461 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) [2021-12-16 04:01:58,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:02:03,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:02:03,779 INFO L93 Difference]: Finished difference Result 10245 states and 14911 transitions. [2021-12-16 04:02:03,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:02:03,779 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 [2021-12-16 04:02:03,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:02:03,822 INFO L225 Difference]: With dead ends: 10245 [2021-12-16 04:02:03,822 INFO L226 Difference]: Without dead ends: 6728 [2021-12-16 04:02:03,837 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 [2021-12-16 04:02:03,838 INFO L933 BasicCegarLoop]: 4029 mSDtfsCounter, 5440 mSDsluCounter, 5846 mSDsCounter, 0 mSdLazyCounter, 6742 mSolverCounterSat, 3513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5868 SdHoareTripleChecker+Valid, 9875 SdHoareTripleChecker+Invalid, 10255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3513 IncrementalHoareTripleChecker+Valid, 6742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:02:03,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5868 Valid, 9875 Invalid, 10255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3513 Valid, 6742 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2021-12-16 04:02:03,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6728 states. [2021-12-16 04:02:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6728 to 6101. [2021-12-16 04:02:04,100 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) [2021-12-16 04:02:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8732 transitions. [2021-12-16 04:02:04,124 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8732 transitions. Word has length 119 [2021-12-16 04:02:04,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:02:04,125 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8732 transitions. [2021-12-16 04:02:04,125 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) [2021-12-16 04:02:04,126 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8732 transitions. [2021-12-16 04:02:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-16 04:02:04,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:02:04,139 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] [2021-12-16 04:02:04,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:02:04,139 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:02:04,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:02:04,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1870804088, now seen corresponding path program 1 times [2021-12-16 04:02:04,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:02:04,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075354865] [2021-12-16 04:02:04,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:02:04,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:02:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:02:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:02:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 04:02:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:02:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:02:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:02:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:02:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 04:02:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 04:02:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 04:02:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 04:02:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:04,589 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-16 04:02:04,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:02:04,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075354865] [2021-12-16 04:02:04,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075354865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:02:04,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:02:04,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:02:04,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865280083] [2021-12-16 04:02:04,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:02:04,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:02:04,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:02:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:02:04,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:02:04,595 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) [2021-12-16 04:02:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:02:12,824 INFO L93 Difference]: Finished difference Result 12789 states and 18540 transitions. [2021-12-16 04:02:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:02:12,824 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 [2021-12-16 04:02:12,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:02:12,862 INFO L225 Difference]: With dead ends: 12789 [2021-12-16 04:02:12,863 INFO L226 Difference]: Without dead ends: 6711 [2021-12-16 04:02:12,888 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 [2021-12-16 04:02:12,889 INFO L933 BasicCegarLoop]: 3117 mSDtfsCounter, 3995 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 1445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4379 SdHoareTripleChecker+Valid, 5834 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1445 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:02:12,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4379 Valid, 5834 Invalid, 3598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1445 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2021-12-16 04:02:12,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2021-12-16 04:02:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6101. [2021-12-16 04:02:13,151 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) [2021-12-16 04:02:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8728 transitions. [2021-12-16 04:02:13,174 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8728 transitions. Word has length 116 [2021-12-16 04:02:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:02:13,174 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8728 transitions. [2021-12-16 04:02:13,174 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) [2021-12-16 04:02:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8728 transitions. [2021-12-16 04:02:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-16 04:02:13,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:02:13,184 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] [2021-12-16 04:02:13,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:02:13,185 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:02:13,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:02:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash -983581242, now seen corresponding path program 1 times [2021-12-16 04:02:13,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:02:13,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693434357] [2021-12-16 04:02:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:02:13,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:02:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:02:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:02:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 04:02:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:02:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:02:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:02:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:02:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 04:02:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 04:02:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 04:02:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 04:02:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:13,591 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-16 04:02:13,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:02:13,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693434357] [2021-12-16 04:02:13,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693434357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:02:13,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:02:13,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:02:13,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33496987] [2021-12-16 04:02:13,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:02:13,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:02:13,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:02:13,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:02:13,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:02:13,594 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)