./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 6c24879c 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-?-6c24879 [2022-07-12 12:42:06,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:42:06,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:42:06,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:42:06,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:42:06,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:42:06,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:42:06,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:42:06,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:42:06,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:42:06,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:42:06,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:42:06,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:42:06,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:42:06,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:42:06,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:42:06,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:42:06,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:42:06,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:42:06,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:42:06,905 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:42:06,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:42:06,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:42:06,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:42:06,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:42:06,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:42:06,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:42:06,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:42:06,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:42:06,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:42:06,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:42:06,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:42:06,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:42:06,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:42:06,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:42:06,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:42:06,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:42:06,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:42:06,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:42:06,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:42:06,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:42:06,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:42:06,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:42:06,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:42:06,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:42:06,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:42:06,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:42:06,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:42:06,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:42:06,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:42:06,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:42:06,951 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:42:06,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:42:06,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:42:06,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:42:06,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:42:06,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:42:06,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:42:06,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:42:06,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:42:06,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:42:06,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:42:06,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:42:06,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:42:06,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:42:06,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:42:06,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:42:06,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:42:06,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:42:06,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:42:06,955 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:42:06,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:42:06,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:42:06,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 [2022-07-12 12:42:07,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:42:07,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:42:07,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:42:07,185 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:42:07,185 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:42:07,186 INFO L432 ainManager$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 [2022-07-12 12:42:07,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66471dd91/5a8a5fa7425b4066a4e59d315294f243/FLAG4d55c1f14 [2022-07-12 12:42:07,802 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:42:07,803 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 [2022-07-12 12:42:07,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66471dd91/5a8a5fa7425b4066a4e59d315294f243/FLAG4d55c1f14 [2022-07-12 12:42:07,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66471dd91/5a8a5fa7425b4066a4e59d315294f243 [2022-07-12 12:42:07,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:42:07,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:42:07,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:42:07,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:42:07,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:42:07,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:42:07" (1/1) ... [2022-07-12 12:42:07,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d39beed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:07, skipping insertion in model container [2022-07-12 12:42:07,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:42:07" (1/1) ... [2022-07-12 12:42:07,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:42:08,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:42:08,418 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2022-07-12 12:42:08,424 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2022-07-12 12:42:08,862 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] [2022-07-12 12:42:10,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:42:10,211 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:42:10,279 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2022-07-12 12:42:10,281 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2022-07-12 12:42:10,291 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] [2022-07-12 12:42:10,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:42:10,738 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:42:10,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10 WrapperNode [2022-07-12 12:42:10,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:42:10,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:42:10,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:42:10,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:42:10,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:10,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,078 INFO L137 Inliner]: procedures = 362, calls = 6469, calls flagged for inlining = 182, calls inlined = 134, statements flattened = 9336 [2022-07-12 12:42:11,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:42:11,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:42:11,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:42:11,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:42:11,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:42:11,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:42:11,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:42:11,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:42:11,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (1/1) ... [2022-07-12 12:42:11,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:42:11,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:42:11,418 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) [2022-07-12 12:42:11,432 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 [2022-07-12 12:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 12:42:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 12:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-07-12 12:42:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-07-12 12:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2022-07-12 12:42:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2022-07-12 12:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 12:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2022-07-12 12:42:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2022-07-12 12:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 12:42:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 12:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:42:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2022-07-12 12:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2022-07-12 12:42:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-12 12:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-12 12:42:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 12:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 12:42:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 12:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 12:42:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:42:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2022-07-12 12:42:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2022-07-12 12:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2022-07-12 12:42:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2022-07-12 12:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-12 12:42:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-12 12:42:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2022-07-12 12:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2022-07-12 12:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-07-12 12:42:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-07-12 12:42:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2022-07-12 12:42:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2022-07-12 12:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-07-12 12:42:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-07-12 12:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2022-07-12 12:42:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2022-07-12 12:42:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:42:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2022-07-12 12:42:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2022-07-12 12:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:42:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:42:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 12:42:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 12:42:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 12:42:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 12:42:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2022-07-12 12:42:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2022-07-12 12:42:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2022-07-12 12:42:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2022-07-12 12:42:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2022-07-12 12:42:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2022-07-12 12:42:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-12 12:42:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-12 12:42:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-07-12 12:42:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-07-12 12:42:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:42:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:42:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:42:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2022-07-12 12:42:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2022-07-12 12:42:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2022-07-12 12:42:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2022-07-12 12:42:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-12 12:42:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-12 12:42:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-07-12 12:42:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-07-12 12:42:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:42:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 12:42:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 12:42:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2022-07-12 12:42:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2022-07-12 12:42:11,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 12:42:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 12:42:11,469 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-07-12 12:42:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-07-12 12:42:11,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:42:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:42:11,470 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-07-12 12:42:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-07-12 12:42:11,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:42:11,470 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 12:42:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 12:42:11,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:42:11,471 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 12:42:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 12:42:11,471 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-07-12 12:42:11,471 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-07-12 12:42:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-07-12 12:42:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:42:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:42:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2022-07-12 12:42:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2022-07-12 12:42:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2022-07-12 12:42:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2022-07-12 12:42:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2022-07-12 12:42:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2022-07-12 12:42:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-12 12:42:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-12 12:42:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-07-12 12:42:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-07-12 12:42:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 12:42:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:42:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:42:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 12:42:11,474 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 12:42:11,476 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-07-12 12:42:11,476 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-07-12 12:42:11,476 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:42:11,476 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:42:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-07-12 12:42:11,478 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-07-12 12:42:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 12:42:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-07-12 12:42:11,478 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure skd_restart_device [2022-07-12 12:42:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_restart_device [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-12 12:42:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:42:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2022-07-12 12:42:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 12:42:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-07-12 12:42:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 12:42:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 12:42:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-07-12 12:42:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-07-12 12:42:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2022-07-12 12:42:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2022-07-12 12:42:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:42:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:42:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 12:42:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 12:42:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:42:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 12:42:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 12:42:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-12 12:42:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-12 12:42:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2022-07-12 12:42:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2022-07-12 12:42:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2022-07-12 12:42:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2022-07-12 12:42:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:42:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:42:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2022-07-12 12:42:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2022-07-12 12:42:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2022-07-12 12:42:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2022-07-12 12:42:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-12 12:42:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-12 12:42:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2022-07-12 12:42:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2022-07-12 12:42:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2022-07-12 12:42:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2022-07-12 12:42:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2022-07-12 12:42:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2022-07-12 12:42:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:42:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 12:42:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 12:42:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:42:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2022-07-12 12:42:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2022-07-12 12:42:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 12:42:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 12:42:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:42:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-07-12 12:42:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-07-12 12:42:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:42:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-12 12:42:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-12 12:42:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-12 12:42:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-12 12:42:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-12 12:42:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-12 12:42:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 12:42:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 12:42:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2022-07-12 12:42:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2022-07-12 12:42:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 12:42:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 12:42:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2022-07-12 12:42:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2022-07-12 12:42:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2022-07-12 12:42:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2022-07-12 12:42:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2022-07-12 12:42:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2022-07-12 12:42:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 12:42:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 12:42:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:42:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:42:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2022-07-12 12:42:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2022-07-12 12:42:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 12:42:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 12:42:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-07-12 12:42:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-07-12 12:42:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 12:42:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 12:42:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 12:42:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 12:42:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 12:42:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 12:42:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 12:42:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 12:42:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2022-07-12 12:42:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2022-07-12 12:42:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-12 12:42:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-12 12:42:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:42:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2022-07-12 12:42:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2022-07-12 12:42:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2022-07-12 12:42:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2022-07-12 12:42:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-12 12:42:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-12 12:42:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:42:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:42:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2022-07-12 12:42:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2022-07-12 12:42:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2022-07-12 12:42:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2022-07-12 12:42:12,212 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:42:12,214 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:42:12,349 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:42:12,493 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume __copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume !__copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#t~switch289#1 := __copy_to_user_nocheck_#t~switch289#1 || 4 == __copy_to_user_nocheck_~size#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467: SUMMARY for call __copy_to_user_nocheck_#t~ret291#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret291#1 && __copy_to_user_nocheck_#t~ret291#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret291#1;havoc __copy_to_user_nocheck_#t~ret291#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455: SUMMARY for call __copy_to_user_nocheck_#t~ret290#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret290#1 && __copy_to_user_nocheck_#t~ret290#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret290#1;havoc __copy_to_user_nocheck_#t~ret290#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#t~switch289#1 := __copy_to_user_nocheck_#t~switch289#1 || 2 == __copy_to_user_nocheck_~size#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume __copy_to_user_nocheck_#t~switch289#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume !__copy_to_user_nocheck_#t~switch289#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435: havoc __copy_to_user_nocheck_#t~switch289#1; [2022-07-12 12:42:12,494 INFO L764 $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; [2022-07-12 12:42:12,494 INFO L764 $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; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume __copy_to_user_nocheck_#t~switch289#1; [2022-07-12 12:42:12,494 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume !__copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#t~switch289#1 := true; [2022-07-12 12:42:12,495 INFO L764 $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; [2022-07-12 12:42:12,495 INFO L764 $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; [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume __copy_to_user_nocheck_#t~switch289#1; [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume !__copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#t~switch289#1 := __copy_to_user_nocheck_#t~switch289#1 || 16 == __copy_to_user_nocheck_~size#1; [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume __copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume !__copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#t~switch289#1 := __copy_to_user_nocheck_#t~switch289#1 || 10 == __copy_to_user_nocheck_~size#1; [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477: SUMMARY for call __copy_to_user_nocheck_#t~ret292#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 [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume __copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume !__copy_to_user_nocheck_#t~switch289#1;__copy_to_user_nocheck_#t~switch289#1 := __copy_to_user_nocheck_#t~switch289#1 || 8 == __copy_to_user_nocheck_~size#1; [2022-07-12 12:42:12,495 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477-1: __copy_to_user_nocheck_~tmp___2~3#1 := __copy_to_user_nocheck_#t~ret292#1;havoc __copy_to_user_nocheck_#t~ret292#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); [2022-07-12 12:42:14,316 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362: havoc __copy_from_user_nocheck_#t~switch283#1; [2022-07-12 12:42:14,316 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387: SUMMARY for call __copy_from_user_nocheck_#t~ret284#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret284#1 && __copy_from_user_nocheck_#t~ret284#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret284#1;havoc __copy_from_user_nocheck_#t~ret284#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume __copy_from_user_nocheck_#t~switch283#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume !__copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#t~switch283#1 := __copy_from_user_nocheck_#t~switch283#1 || 16 == __copy_from_user_nocheck_~size#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret285#1 && __copy_from_user_nocheck_#t~ret285#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret285#1;havoc __copy_from_user_nocheck_#t~ret285#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400: SUMMARY for call __copy_from_user_nocheck_#t~ret285#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume __copy_from_user_nocheck_#t~switch283#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume !__copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#t~switch283#1 := true; [2022-07-12 12:42:14,317 INFO L764 $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; [2022-07-12 12:42:14,317 INFO L764 $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; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume __copy_from_user_nocheck_#t~switch283#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume !__copy_from_user_nocheck_#t~switch283#1; [2022-07-12 12:42:14,317 INFO L764 $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; [2022-07-12 12:42:14,317 INFO L764 $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; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume __copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume !__copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#t~switch283#1 := __copy_from_user_nocheck_#t~switch283#1 || 4 == __copy_from_user_nocheck_~size#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410: SUMMARY for call __copy_from_user_nocheck_#t~ret286#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 [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#t~switch283#1 := __copy_from_user_nocheck_#t~switch283#1 || 2 == __copy_from_user_nocheck_~size#1; [2022-07-12 12:42:14,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410-1: __copy_from_user_nocheck_~tmp___2~2#1 := __copy_from_user_nocheck_#t~ret286#1;havoc __copy_from_user_nocheck_#t~ret286#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); [2022-07-12 12:42:14,318 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume __copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-07-12 12:42:14,318 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume !__copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#t~switch283#1 := __copy_from_user_nocheck_#t~switch283#1 || 8 == __copy_from_user_nocheck_~size#1; [2022-07-12 12:42:14,318 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume __copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-07-12 12:42:14,318 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume !__copy_from_user_nocheck_#t~switch283#1;__copy_from_user_nocheck_#t~switch283#1 := __copy_from_user_nocheck_#t~switch283#1 || 10 == __copy_from_user_nocheck_~size#1; [2022-07-12 12:42:19,382 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:42:19,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:42:19,414 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 12:42:19,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:42:19 BoogieIcfgContainer [2022-07-12 12:42:19,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:42:19,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:42:19,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:42:19,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:42:19,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:42:07" (1/3) ... [2022-07-12 12:42:19,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a10c401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:42:19, skipping insertion in model container [2022-07-12 12:42:19,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:42:10" (2/3) ... [2022-07-12 12:42:19,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a10c401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:42:19, skipping insertion in model container [2022-07-12 12:42:19,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:42:19" (3/3) ... [2022-07-12 12:42:19,426 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 [2022-07-12 12:42:19,434 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:42:19,435 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:42:19,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:42:19,541 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@61929973, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@742aba74 [2022-07-12 12:42:19,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:42:19,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 2375 states, 1750 states have (on average 1.3845714285714286) internal successors, (2423), 1794 states have internal predecessors, (2423), 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) [2022-07-12 12:42:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 12:42:19,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:19,566 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:42:19,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:19,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:19,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1425193695, now seen corresponding path program 1 times [2022-07-12 12:42:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:42:19,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801697635] [2022-07-12 12:42:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:42:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:42:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:42:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:42:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:42:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 12:42:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:42:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 12:42:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 12:42:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:42:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 12:42:20,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:42:20,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801697635] [2022-07-12 12:42:20,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801697635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:20,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:20,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:42:20,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692513144] [2022-07-12 12:42:20,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:20,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:42:20,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:42:20,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:42:20,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:42:20,195 INFO L87 Difference]: Start difference. First operand has 2375 states, 1750 states have (on average 1.3845714285714286) internal successors, (2423), 1794 states have internal predecessors, (2423), 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) [2022-07-12 12:42:22,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:42:30,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:30,706 INFO L93 Difference]: Finished difference Result 6416 states and 9536 transitions. [2022-07-12 12:42:30,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:42:30,709 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 [2022-07-12 12:42:30,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:30,743 INFO L225 Difference]: With dead ends: 6416 [2022-07-12 12:42:30,743 INFO L226 Difference]: Without dead ends: 4001 [2022-07-12 12:42:30,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:42:30,759 INFO L413 NwaCegarLoop]: 3721 mSDtfsCounter, 3525 mSDsluCounter, 5612 mSDsCounter, 0 mSdLazyCounter, 3826 mSolverCounterSat, 1871 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3723 SdHoareTripleChecker+Valid, 9333 SdHoareTripleChecker+Invalid, 5697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1871 IncrementalHoareTripleChecker+Valid, 3826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:30,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3723 Valid, 9333 Invalid, 5697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1871 Valid, 3826 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-07-12 12:42:30,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-07-12 12:42:30,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 3638. [2022-07-12 12:42:30,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 2712 states have (on average 1.3672566371681416) internal successors, (3708), 2771 states have internal predecessors, (3708), 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) [2022-07-12 12:42:30,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 5205 transitions. [2022-07-12 12:42:30,975 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 5205 transitions. Word has length 78 [2022-07-12 12:42:30,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:30,976 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 5205 transitions. [2022-07-12 12:42:30,976 INFO L496 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) [2022-07-12 12:42:30,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 5205 transitions. [2022-07-12 12:42:30,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 12:42:30,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:30,988 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:42:30,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:42:30,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:30,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:30,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1331122468, now seen corresponding path program 1 times [2022-07-12 12:42:30,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:42:30,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93075134] [2022-07-12 12:42:30,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:30,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:42:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:42:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:42:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:42:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:42:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 12:42:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 12:42:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 12:42:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 12:42:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 12:42:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 12:42:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 12:42:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 12:42:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:42:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-12 12:42:31,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:42:31,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93075134] [2022-07-12 12:42:31,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93075134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:31,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:31,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:42:31,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147171018] [2022-07-12 12:42:31,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:31,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:42:31,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:42:31,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:42:31,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:42:31,519 INFO L87 Difference]: Start difference. First operand 3638 states and 5205 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) [2022-07-12 12:42:35,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:42:36,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:42:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:50,753 INFO L93 Difference]: Finished difference Result 10629 states and 15414 transitions. [2022-07-12 12:42:50,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 12:42:50,753 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 [2022-07-12 12:42:50,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:50,786 INFO L225 Difference]: With dead ends: 10629 [2022-07-12 12:42:50,787 INFO L226 Difference]: Without dead ends: 7010 [2022-07-12 12:42:50,800 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:42:50,801 INFO L413 NwaCegarLoop]: 4499 mSDtfsCounter, 5568 mSDsluCounter, 5903 mSDsCounter, 0 mSdLazyCounter, 7702 mSolverCounterSat, 3308 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5993 SdHoareTripleChecker+Valid, 10402 SdHoareTripleChecker+Invalid, 11011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3308 IncrementalHoareTripleChecker+Valid, 7702 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:50,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5993 Valid, 10402 Invalid, 11011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3308 Valid, 7702 Invalid, 1 Unknown, 0 Unchecked, 18.8s Time] [2022-07-12 12:42:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2022-07-12 12:42:50,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 6295. [2022-07-12 12:42:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6295 states, 4679 states have (on average 1.3663175892284676) internal successors, (6393), 4796 states have internal predecessors, (6393), 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) [2022-07-12 12:42:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 8988 transitions. [2022-07-12 12:42:50,995 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 8988 transitions. Word has length 119 [2022-07-12 12:42:50,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:50,997 INFO L495 AbstractCegarLoop]: Abstraction has 6295 states and 8988 transitions. [2022-07-12 12:42:50,997 INFO L496 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) [2022-07-12 12:42:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 8988 transitions. [2022-07-12 12:42:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 12:42:51,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:51,007 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:42:51,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:42:51,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash 501978286, now seen corresponding path program 1 times [2022-07-12 12:42:51,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:42:51,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938470380] [2022-07-12 12:42:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:51,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:42:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:42:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:42:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:42:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:42:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 12:42:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 12:42:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:42:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 12:42:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 12:42:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 12:42:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:42:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:42:51,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:42:51,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938470380] [2022-07-12 12:42:51,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938470380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:51,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:51,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:42:51,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830766368] [2022-07-12 12:42:51,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:51,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:42:51,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:42:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:42:51,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:42:51,508 INFO L87 Difference]: Start difference. First operand 6295 states and 8988 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) [2022-07-12 12:42:55,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:01,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:43:01,289 INFO L93 Difference]: Finished difference Result 13265 states and 19164 transitions. [2022-07-12 12:43:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:43:01,290 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 [2022-07-12 12:43:01,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:43:01,323 INFO L225 Difference]: With dead ends: 13265 [2022-07-12 12:43:01,323 INFO L226 Difference]: Without dead ends: 6993 [2022-07-12 12:43:01,345 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:43:01,346 INFO L413 NwaCegarLoop]: 3218 mSDtfsCounter, 4169 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 1439 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4544 SdHoareTripleChecker+Valid, 6084 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:43:01,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4544 Valid, 6084 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1439 Valid, 2173 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-07-12 12:43:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6993 states. [2022-07-12 12:43:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6993 to 6295. [2022-07-12 12:43:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6295 states, 4679 states have (on average 1.3654627057063475) internal successors, (6389), 4796 states have internal predecessors, (6389), 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) [2022-07-12 12:43:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 8984 transitions. [2022-07-12 12:43:01,606 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 8984 transitions. Word has length 116 [2022-07-12 12:43:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:43:01,607 INFO L495 AbstractCegarLoop]: Abstraction has 6295 states and 8984 transitions. [2022-07-12 12:43:01,608 INFO L496 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) [2022-07-12 12:43:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 8984 transitions. [2022-07-12 12:43:01,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 12:43:01,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:43:01,615 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:43:01,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:43:01,615 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:43:01,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:43:01,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1389201132, now seen corresponding path program 1 times [2022-07-12 12:43:01,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:43:01,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103375081] [2022-07-12 12:43:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:43:01,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:43:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:43:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:43:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:43:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:43:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 12:43:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 12:43:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:43:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 12:43:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 12:43:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 12:43:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:43:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:43:01,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:43:01,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103375081] [2022-07-12 12:43:01,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103375081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:43:01,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:43:01,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:43:01,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284976350] [2022-07-12 12:43:01,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:43:01,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:43:01,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:43:01,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:43:01,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:43:01,907 INFO L87 Difference]: Start difference. First operand 6295 states and 8984 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) [2022-07-12 12:43:04,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:12,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:43:12,806 INFO L93 Difference]: Finished difference Result 19777 states and 28646 transitions. [2022-07-12 12:43:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:43:12,807 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 [2022-07-12 12:43:12,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:43:12,876 INFO L225 Difference]: With dead ends: 19777 [2022-07-12 12:43:12,876 INFO L226 Difference]: Without dead ends: 13505 [2022-07-12 12:43:12,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:43:12,901 INFO L413 NwaCegarLoop]: 3800 mSDtfsCounter, 4819 mSDsluCounter, 5527 mSDsCounter, 0 mSdLazyCounter, 4162 mSolverCounterSat, 2457 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5175 SdHoareTripleChecker+Valid, 9327 SdHoareTripleChecker+Invalid, 6620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2457 IncrementalHoareTripleChecker+Valid, 4162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:43:12,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5175 Valid, 9327 Invalid, 6620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2457 Valid, 4162 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-07-12 12:43:12,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13505 states. [2022-07-12 12:43:13,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13505 to 12120. [2022-07-12 12:43:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12120 states, 8996 states have (on average 1.3673855046687418) internal successors, (12301), 9228 states have internal predecessors, (12301), 2498 states have call successors, (2498), 626 states have call predecessors, (2498), 625 states have return successors, (2497), 2407 states have call predecessors, (2497), 2497 states have call successors, (2497) [2022-07-12 12:43:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12120 states to 12120 states and 17296 transitions. [2022-07-12 12:43:13,391 INFO L78 Accepts]: Start accepts. Automaton has 12120 states and 17296 transitions. Word has length 116 [2022-07-12 12:43:13,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:43:13,393 INFO L495 AbstractCegarLoop]: Abstraction has 12120 states and 17296 transitions. [2022-07-12 12:43:13,393 INFO L496 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) [2022-07-12 12:43:13,393 INFO L276 IsEmpty]: Start isEmpty. Operand 12120 states and 17296 transitions. [2022-07-12 12:43:13,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 12:43:13,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:43:13,402 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:43:13,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:43:13,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:43:13,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:43:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -521841426, now seen corresponding path program 1 times [2022-07-12 12:43:13,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:43:13,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081520609] [2022-07-12 12:43:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:43:13,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:43:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:43:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:43:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:43:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:43:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 12:43:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 12:43:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:43:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 12:43:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 12:43:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 12:43:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:43:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:43:13,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:43:13,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081520609] [2022-07-12 12:43:13,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081520609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:43:13,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:43:13,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:43:13,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745924586] [2022-07-12 12:43:13,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:43:13,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:43:13,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:43:13,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:43:13,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:43:13,743 INFO L87 Difference]: Start difference. First operand 12120 states and 17296 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) [2022-07-12 12:43:22,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:43:22,675 INFO L93 Difference]: Finished difference Result 25599 states and 36952 transitions. [2022-07-12 12:43:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:43:22,675 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 [2022-07-12 12:43:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:43:22,727 INFO L225 Difference]: With dead ends: 25599 [2022-07-12 12:43:22,727 INFO L226 Difference]: Without dead ends: 13502 [2022-07-12 12:43:22,758 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:43:22,759 INFO L413 NwaCegarLoop]: 3204 mSDtfsCounter, 4168 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 1445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4551 SdHoareTripleChecker+Valid, 6050 SdHoareTripleChecker+Invalid, 3616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1445 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:43:22,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4551 Valid, 6050 Invalid, 3616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1445 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-07-12 12:43:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13502 states. [2022-07-12 12:43:23,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13502 to 12120. [2022-07-12 12:43:23,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12120 states, 8996 states have (on average 1.3664962205424633) internal successors, (12293), 9228 states have internal predecessors, (12293), 2498 states have call successors, (2498), 626 states have call predecessors, (2498), 625 states have return successors, (2497), 2407 states have call predecessors, (2497), 2497 states have call successors, (2497) [2022-07-12 12:43:23,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12120 states to 12120 states and 17288 transitions. [2022-07-12 12:43:23,298 INFO L78 Accepts]: Start accepts. Automaton has 12120 states and 17288 transitions. Word has length 116 [2022-07-12 12:43:23,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:43:23,298 INFO L495 AbstractCegarLoop]: Abstraction has 12120 states and 17288 transitions. [2022-07-12 12:43:23,298 INFO L496 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) [2022-07-12 12:43:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12120 states and 17288 transitions. [2022-07-12 12:43:23,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 12:43:23,304 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:43:23,304 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:43:23,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 12:43:23,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:43:23,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:43:23,307 INFO L85 PathProgramCache]: Analyzing trace with hash -444940628, now seen corresponding path program 1 times [2022-07-12 12:43:23,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:43:23,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358562530] [2022-07-12 12:43:23,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:43:23,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:43:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:43:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:43:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:43:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:43:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 12:43:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 12:43:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:43:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 12:43:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 12:43:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 12:43:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:43:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:43:23,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:43:23,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358562530] [2022-07-12 12:43:23,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358562530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:43:23,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:43:23,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:43:23,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984401397] [2022-07-12 12:43:23,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:43:23,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:43:23,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:43:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:43:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:43:23,560 INFO L87 Difference]: Start difference. First operand 12120 states and 17288 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) [2022-07-12 12:43:26,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:43:35,955 INFO L93 Difference]: Finished difference Result 38620 states and 55902 transitions. [2022-07-12 12:43:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:43:35,955 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 [2022-07-12 12:43:35,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:43:36,067 INFO L225 Difference]: With dead ends: 38620 [2022-07-12 12:43:36,068 INFO L226 Difference]: Without dead ends: 26523 [2022-07-12 12:43:36,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:43:36,111 INFO L413 NwaCegarLoop]: 3804 mSDtfsCounter, 4811 mSDsluCounter, 5515 mSDsCounter, 0 mSdLazyCounter, 4173 mSolverCounterSat, 2449 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5164 SdHoareTripleChecker+Valid, 9319 SdHoareTripleChecker+Invalid, 6623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2449 IncrementalHoareTripleChecker+Valid, 4173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:43:36,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5164 Valid, 9319 Invalid, 6623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2449 Valid, 4173 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-07-12 12:43:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26523 states. [2022-07-12 12:43:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26523 to 23770. [2022-07-12 12:43:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23770 states, 17630 states have (on average 1.3672716959727738) internal successors, (24105), 18092 states have internal predecessors, (24105), 4898 states have call successors, (4898), 1242 states have call predecessors, (4898), 1241 states have return successors, (4897), 4717 states have call predecessors, (4897), 4897 states have call successors, (4897) [2022-07-12 12:43:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23770 states to 23770 states and 33900 transitions. [2022-07-12 12:43:37,336 INFO L78 Accepts]: Start accepts. Automaton has 23770 states and 33900 transitions. Word has length 116 [2022-07-12 12:43:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:43:37,336 INFO L495 AbstractCegarLoop]: Abstraction has 23770 states and 33900 transitions. [2022-07-12 12:43:37,337 INFO L496 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) [2022-07-12 12:43:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 23770 states and 33900 transitions. [2022-07-12 12:43:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 12:43:37,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:43:37,343 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:43:37,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 12:43:37,343 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:43:37,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:43:37,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1463517162, now seen corresponding path program 1 times [2022-07-12 12:43:37,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:43:37,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257589082] [2022-07-12 12:43:37,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:43:37,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:43:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:43:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:43:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:43:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:43:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 12:43:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 12:43:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:43:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 12:43:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 12:43:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 12:43:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:43:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:43:37,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:43:37,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257589082] [2022-07-12 12:43:37,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257589082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:43:37,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:43:37,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 12:43:37,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445661156] [2022-07-12 12:43:37,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:43:37,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:43:37,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:43:37,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:43:37,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:43:37,636 INFO L87 Difference]: Start difference. First operand 23770 states and 33900 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 6 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) [2022-07-12 12:43:40,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:43,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:46,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:55,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:57,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:58,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:03,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:44:03,767 INFO L93 Difference]: Finished difference Result 75970 states and 109954 transitions. [2022-07-12 12:44:03,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 12:44:03,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 6 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 [2022-07-12 12:44:03,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:44:03,952 INFO L225 Difference]: With dead ends: 75970 [2022-07-12 12:44:03,952 INFO L226 Difference]: Without dead ends: 52223 [2022-07-12 12:44:04,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-07-12 12:44:04,010 INFO L413 NwaCegarLoop]: 5348 mSDtfsCounter, 10700 mSDsluCounter, 10444 mSDsCounter, 0 mSdLazyCounter, 7151 mSolverCounterSat, 5626 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11080 SdHoareTripleChecker+Valid, 15792 SdHoareTripleChecker+Invalid, 12779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5626 IncrementalHoareTripleChecker+Valid, 7151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:44:04,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11080 Valid, 15792 Invalid, 12779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5626 Valid, 7151 Invalid, 2 Unknown, 0 Unchecked, 24.4s Time] [2022-07-12 12:44:04,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52223 states. [2022-07-12 12:44:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52223 to 46734. [2022-07-12 12:44:05,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46734 states, 34590 states have (on average 1.3658571841572709) internal successors, (47245), 35508 states have internal predecessors, (47245), 9678 states have call successors, (9678), 2466 states have call predecessors, (9678), 2465 states have return successors, (9677), 9321 states have call predecessors, (9677), 9677 states have call successors, (9677) [2022-07-12 12:44:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46734 states to 46734 states and 66600 transitions. [2022-07-12 12:44:05,857 INFO L78 Accepts]: Start accepts. Automaton has 46734 states and 66600 transitions. Word has length 116 [2022-07-12 12:44:05,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:44:05,858 INFO L495 AbstractCegarLoop]: Abstraction has 46734 states and 66600 transitions. [2022-07-12 12:44:05,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 6 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) [2022-07-12 12:44:05,858 INFO L276 IsEmpty]: Start isEmpty. Operand 46734 states and 66600 transitions. [2022-07-12 12:44:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 12:44:05,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:44:05,865 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:44:05,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 12:44:05,866 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:44:05,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:44:05,866 INFO L85 PathProgramCache]: Analyzing trace with hash 321014696, now seen corresponding path program 1 times [2022-07-12 12:44:05,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:44:05,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975847266] [2022-07-12 12:44:05,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:44:05,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:44:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:44:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:44:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:44:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:44:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 12:44:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 12:44:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:44:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 12:44:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 12:44:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 12:44:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:44:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:44:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 12:44:06,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:44:06,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975847266] [2022-07-12 12:44:06,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975847266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:44:06,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:44:06,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:44:06,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655741411] [2022-07-12 12:44:06,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:44:06,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:44:06,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:44:06,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:44:06,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:44:06,264 INFO L87 Difference]: Start difference. First operand 46734 states and 66600 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-12 12:44:09,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:15,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:44:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:44:17,422 INFO L93 Difference]: Finished difference Result 54947 states and 79326 transitions. [2022-07-12 12:44:17,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:44:17,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 116 [2022-07-12 12:44:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:44:17,426 INFO L225 Difference]: With dead ends: 54947 [2022-07-12 12:44:17,426 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 12:44:17,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:44:17,520 INFO L413 NwaCegarLoop]: 3332 mSDtfsCounter, 3086 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 2697 mSolverCounterSat, 1370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 7185 SdHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1370 IncrementalHoareTripleChecker+Valid, 2697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:44:17,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3342 Valid, 7185 Invalid, 4067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1370 Valid, 2697 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-07-12 12:44:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 12:44:17,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 12:44:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 12:44:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 12:44:17,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 116 [2022-07-12 12:44:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:44:17,526 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 12:44:17,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-12 12:44:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 12:44:17,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 12:44:17,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 12:44:17,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 12:44:17,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.