./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.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 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-16 23:58:52,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 23:58:52,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 23:58:52,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 23:58:52,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 23:58:52,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 23:58:52,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 23:58:52,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 23:58:52,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 23:58:52,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 23:58:52,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 23:58:52,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 23:58:52,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 23:58:52,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 23:58:52,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 23:58:52,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 23:58:52,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 23:58:52,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 23:58:52,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 23:58:52,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 23:58:52,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 23:58:52,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 23:58:52,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 23:58:52,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 23:58:52,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 23:58:52,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 23:58:52,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 23:58:52,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 23:58:52,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 23:58:52,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 23:58:52,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 23:58:52,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 23:58:52,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 23:58:52,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 23:58:52,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 23:58:52,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 23:58:52,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 23:58:52,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 23:58:52,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 23:58:52,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 23:58:52,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 23:58:52,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-16 23:58:52,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 23:58:52,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 23:58:52,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 23:58:52,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 23:58:52,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 23:58:52,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 23:58:52,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 23:58:52,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 23:58:52,307 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 23:58:52,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 23:58:52,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-16 23:58:52,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 23:58:52,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 23:58:52,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 23:58:52,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 23:58:52,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 23:58:52,309 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 23:58:52,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 23:58:52,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 23:58:52,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 23:58:52,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 23:58:52,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 23:58:52,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 23:58:52,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 23:58:52,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 23:58:52,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-16 23:58:52,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-16 23:58:52,311 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 23:58:52,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 23:58:52,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 23:58:52,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 23:58:52,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-11-16 23:58:52,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 23:58:52,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 23:58:52,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 23:58:52,529 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 23:58:52,529 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 23:58:52,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-11-16 23:58:52,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1034eb5/8fc99835b8044d2a8930b17b46581f0d/FLAGef8cb262b [2021-11-16 23:58:53,223 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 23:58:53,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-11-16 23:58:53,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1034eb5/8fc99835b8044d2a8930b17b46581f0d/FLAGef8cb262b [2021-11-16 23:58:53,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1034eb5/8fc99835b8044d2a8930b17b46581f0d [2021-11-16 23:58:53,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 23:58:53,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 23:58:53,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 23:58:53,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 23:58:53,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 23:58:53,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:53" (1/1) ... [2021-11-16 23:58:53,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c95b87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:53, skipping insertion in model container [2021-11-16 23:58:53,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:53" (1/1) ... [2021-11-16 23:58:53,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 23:58:53,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 23:58:55,087 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-11-16 23:58:55,178 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 23:58:55,205 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 23:58:55,514 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-11-16 23:58:55,523 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 23:58:55,584 INFO L208 MainTranslator]: Completed translation [2021-11-16 23:58:55,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55 WrapperNode [2021-11-16 23:58:55,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 23:58:55,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 23:58:55,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 23:58:55,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 23:58:55,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:55,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:55,871 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8788 [2021-11-16 23:58:55,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 23:58:55,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 23:58:55,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 23:58:55,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 23:58:55,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:55,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:55,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:55,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:56,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:56,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:56,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:56,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 23:58:56,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 23:58:56,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 23:58:56,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 23:58:56,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (1/1) ... [2021-11-16 23:58:56,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 23:58:56,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 23:58:56,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-16 23:58:56,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-16 23:58:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-11-16 23:58:56,282 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-11-16 23:58:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-16 23:58:56,282 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-16 23:58:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-11-16 23:58:56,282 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-11-16 23:58:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-16 23:58:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-16 23:58:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-11-16 23:58:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-11-16 23:58:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-11-16 23:58:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-11-16 23:58:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-16 23:58:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-16 23:58:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-11-16 23:58:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-11-16 23:58:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-11-16 23:58:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-11-16 23:58:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-11-16 23:58:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-11-16 23:58:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-11-16 23:58:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-11-16 23:58:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-16 23:58:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-16 23:58:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-16 23:58:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-16 23:58:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-11-16 23:58:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-11-16 23:58:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-11-16 23:58:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-11-16 23:58:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-11-16 23:58:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-11-16 23:58:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-11-16 23:58:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-11-16 23:58:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-11-16 23:58:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-11-16 23:58:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-11-16 23:58:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-11-16 23:58:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-11-16 23:58:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-11-16 23:58:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-16 23:58:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-16 23:58:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-16 23:58:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-16 23:58:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-11-16 23:58:56,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-11-16 23:58:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-11-16 23:58:56,288 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-11-16 23:58:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-11-16 23:58:56,288 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-11-16 23:58:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-16 23:58:56,289 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-16 23:58:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-16 23:58:56,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-16 23:58:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-11-16 23:58:56,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-11-16 23:58:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-11-16 23:58:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-11-16 23:58:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-11-16 23:58:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-11-16 23:58:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-11-16 23:58:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-11-16 23:58:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-16 23:58:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-16 23:58:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-16 23:58:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-16 23:58:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-11-16 23:58:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-11-16 23:58:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-11-16 23:58:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-11-16 23:58:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-11-16 23:58:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-11-16 23:58:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-16 23:58:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-16 23:58:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-16 23:58:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-16 23:58:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 23:58:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-11-16 23:58:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-11-16 23:58:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-16 23:58:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-16 23:58:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-16 23:58:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-16 23:58:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-16 23:58:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-11-16 23:58:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-11-16 23:58:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-11-16 23:58:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-11-16 23:58:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-11-16 23:58:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-11-16 23:58:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-11-16 23:58:56,296 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-11-16 23:58:56,296 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-16 23:58:56,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-16 23:58:56,296 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-16 23:58:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-16 23:58:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-11-16 23:58:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-11-16 23:58:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-11-16 23:58:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-11-16 23:58:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-16 23:58:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-11-16 23:58:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-11-16 23:58:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-11-16 23:58:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-11-16 23:58:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 23:58:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-11-16 23:58:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-11-16 23:58:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-16 23:58:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-16 23:58:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-11-16 23:58:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-11-16 23:58:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-11-16 23:58:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-11-16 23:58:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-16 23:58:56,300 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-16 23:58:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-16 23:58:56,300 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-16 23:58:56,301 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-16 23:58:56,302 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-16 23:58:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-16 23:58:56,303 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-16 23:58:56,303 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-16 23:58:56,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-16 23:58:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-16 23:58:56,304 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-16 23:58:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-11-16 23:58:56,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-11-16 23:58:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-11-16 23:58:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-11-16 23:58:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-16 23:58:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-16 23:58:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-11-16 23:58:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-11-16 23:58:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-11-16 23:58:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-11-16 23:58:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-11-16 23:58:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-11-16 23:58:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-11-16 23:58:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-11-16 23:58:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-16 23:58:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-16 23:58:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-16 23:58:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-16 23:58:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-16 23:58:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-16 23:58:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-11-16 23:58:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-11-16 23:58:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-11-16 23:58:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-11-16 23:58:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-11-16 23:58:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-11-16 23:58:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-16 23:58:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-11-16 23:58:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-11-16 23:58:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-11-16 23:58:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-11-16 23:58:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-11-16 23:58:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-11-16 23:58:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-11-16 23:58:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-11-16 23:58:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-11-16 23:58:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-11-16 23:58:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-11-16 23:58:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-11-16 23:58:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-11-16 23:58:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-11-16 23:58:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-11-16 23:58:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-11-16 23:58:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-11-16 23:58:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-11-16 23:58:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-11-16 23:58:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-11-16 23:58:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-11-16 23:58:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-11-16 23:58:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-11-16 23:58:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-11-16 23:58:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-16 23:58:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-16 23:58:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-11-16 23:58:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-11-16 23:58:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-16 23:58:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-16 23:58:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-11-16 23:58:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-11-16 23:58:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-16 23:58:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-11-16 23:58:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-11-16 23:58:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-11-16 23:58:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-11-16 23:58:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-16 23:58:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-16 23:58:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-16 23:58:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-16 23:58:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-11-16 23:58:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-11-16 23:58:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 23:58:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-16 23:58:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-16 23:58:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-11-16 23:58:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-11-16 23:58:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-11-16 23:58:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-11-16 23:58:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-16 23:58:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-16 23:58:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 23:58:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-11-16 23:58:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-11-16 23:58:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-16 23:58:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-16 23:58:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-16 23:58:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-16 23:58:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 23:58:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-11-16 23:58:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-11-16 23:58:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-11-16 23:58:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-11-16 23:58:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-11-16 23:58:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-11-16 23:58:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-16 23:58:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-16 23:58:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-11-16 23:58:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-11-16 23:58:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-16 23:58:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-16 23:58:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-11-16 23:58:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-11-16 23:58:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-16 23:58:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-16 23:58:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-11-16 23:58:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-11-16 23:58:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-16 23:58:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-16 23:58:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-16 23:58:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-16 23:58:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-11-16 23:58:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-11-16 23:58:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-11-16 23:58:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-11-16 23:58:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-11-16 23:58:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-11-16 23:58:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-11-16 23:58:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-11-16 23:58:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-11-16 23:58:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-11-16 23:58:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-11-16 23:58:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-11-16 23:58:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-11-16 23:58:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-11-16 23:58:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-11-16 23:58:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-11-16 23:58:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-11-16 23:58:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-11-16 23:58:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-11-16 23:58:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-11-16 23:58:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-11-16 23:58:56,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-11-16 23:58:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-16 23:58:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-16 23:58:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-16 23:58:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-16 23:58:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-11-16 23:58:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-11-16 23:58:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-16 23:58:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-16 23:58:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-11-16 23:58:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-11-16 23:58:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-11-16 23:58:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-11-16 23:58:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-16 23:58:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-16 23:58:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-16 23:58:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-16 23:58:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-11-16 23:58:56,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-11-16 23:58:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-11-16 23:58:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-11-16 23:58:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-11-16 23:58:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-11-16 23:58:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-16 23:58:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 23:58:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 23:58:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-16 23:58:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-16 23:58:57,156 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 23:58:57,158 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 23:59:04,407 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 23:59:04,432 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 23:59:04,432 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-16 23:59:04,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:59:04 BoogieIcfgContainer [2021-11-16 23:59:04,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 23:59:04,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 23:59:04,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 23:59:04,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 23:59:04,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:58:53" (1/3) ... [2021-11-16 23:59:04,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8ff3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:59:04, skipping insertion in model container [2021-11-16 23:59:04,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:55" (2/3) ... [2021-11-16 23:59:04,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8ff3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:59:04, skipping insertion in model container [2021-11-16 23:59:04,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:59:04" (3/3) ... [2021-11-16 23:59:04,441 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-11-16 23:59:04,445 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 23:59:04,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 23:59:04,493 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 23:59:04,499 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-16 23:59:04,499 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 23:59:04,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-16 23:59:04,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-16 23:59:04,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:04,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:04,561 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-11-16 23:59:04,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:04,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814969162] [2021-11-16 23:59:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:04,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:05,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:05,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:05,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814969162] [2021-11-16 23:59:05,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814969162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:05,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:05,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:59:05,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749617498] [2021-11-16 23:59:05,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:05,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:59:05,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:05,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:59:05,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:05,083 INFO L87 Difference]: Start difference. First operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 23:59:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:05,544 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-11-16 23:59:05,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:59:05,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-16 23:59:05,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:05,665 INFO L225 Difference]: With dead ends: 9883 [2021-11-16 23:59:05,666 INFO L226 Difference]: Without dead ends: 6563 [2021-11-16 23:59:05,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:05,693 INFO L933 BasicCegarLoop]: 7168 mSDtfsCounter, 4872 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 12065 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:05,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4872 Valid, 12065 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 23:59:05,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-11-16 23:59:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-11-16 23:59:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 4600 states have (on average 1.393695652173913) internal successors, (6411), 4734 states have internal predecessors, (6411), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2021-11-16 23:59:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-11-16 23:59:06,006 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-11-16 23:59:06,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:06,007 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-11-16 23:59:06,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 23:59:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-11-16 23:59:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-16 23:59:06,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:06,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:06,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-16 23:59:06,015 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:06,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:06,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-11-16 23:59:06,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:06,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605979838] [2021-11-16 23:59:06,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:06,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:06,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:06,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605979838] [2021-11-16 23:59:06,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605979838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:06,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:06,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:59:06,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243589422] [2021-11-16 23:59:06,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:06,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:59:06,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:06,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:59:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:06,272 INFO L87 Difference]: Start difference. First operand 6549 states and 9761 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 23:59:06,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:06,730 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-11-16 23:59:06,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:59:06,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-16 23:59:06,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:06,808 INFO L225 Difference]: With dead ends: 19597 [2021-11-16 23:59:06,808 INFO L226 Difference]: Without dead ends: 13051 [2021-11-16 23:59:06,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:06,841 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:06,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 23:59:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-11-16 23:59:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-11-16 23:59:07,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9154 states have (on average 1.392724492025344) internal successors, (12749), 9418 states have internal predecessors, (12749), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2021-11-16 23:59:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-11-16 23:59:07,357 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-11-16 23:59:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:07,357 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-11-16 23:59:07,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 23:59:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-11-16 23:59:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-16 23:59:07,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:07,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:07,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-16 23:59:07,360 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:07,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-11-16 23:59:07,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:07,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833537694] [2021-11-16 23:59:07,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:07,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:07,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:07,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:07,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833537694] [2021-11-16 23:59:07,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833537694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:07,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:07,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:59:07,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399407879] [2021-11-16 23:59:07,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:07,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:59:07,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:07,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:59:07,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:07,564 INFO L87 Difference]: Start difference. First operand 13037 states and 19427 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 23:59:08,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:08,186 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-11-16 23:59:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:59:08,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-16 23:59:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:08,340 INFO L225 Difference]: With dead ends: 38959 [2021-11-16 23:59:08,341 INFO L226 Difference]: Without dead ends: 25925 [2021-11-16 23:59:08,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:08,416 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 4862 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:08,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 23:59:08,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-11-16 23:59:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-11-16 23:59:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25911 states, 18183 states have (on average 1.3920695154814937) internal successors, (25312), 18706 states have internal predecessors, (25312), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-16 23:59:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-11-16 23:59:09,375 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-11-16 23:59:09,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:09,376 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-11-16 23:59:09,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 23:59:09,376 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-11-16 23:59:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-16 23:59:09,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:09,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:09,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-16 23:59:09,379 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:09,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-11-16 23:59:09,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:09,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079725127] [2021-11-16 23:59:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:09,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:09,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-16 23:59:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:09,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:09,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079725127] [2021-11-16 23:59:09,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079725127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:09,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:09,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 23:59:09,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176343155] [2021-11-16 23:59:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:09,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 23:59:09,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:09,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 23:59:09,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-16 23:59:09,576 INFO L87 Difference]: Start difference. First operand 25911 states and 38614 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:11,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:12,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:12,541 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-11-16 23:59:12,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 23:59:12,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-16 23:59:12,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:12,674 INFO L225 Difference]: With dead ends: 51854 [2021-11-16 23:59:12,674 INFO L226 Difference]: Without dead ends: 25946 [2021-11-16 23:59:12,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-16 23:59:12,773 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:12,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:59:12,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-11-16 23:59:13,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-11-16 23:59:13,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25914 states, 18186 states have (on average 1.392004838887056) internal successors, (25315), 18709 states have internal predecessors, (25315), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-16 23:59:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-11-16 23:59:13,681 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-11-16 23:59:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:13,682 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-11-16 23:59:13,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:13,682 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-11-16 23:59:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-16 23:59:13,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:13,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:13,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-16 23:59:13,686 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:13,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-11-16 23:59:13,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:13,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869935538] [2021-11-16 23:59:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:13,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-16 23:59:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:13,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:13,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:13,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869935538] [2021-11-16 23:59:13,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869935538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:13,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:13,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:59:13,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311658629] [2021-11-16 23:59:13,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:13,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:59:13,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:13,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:59:13,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:13,994 INFO L87 Difference]: Start difference. First operand 25914 states and 38617 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:16,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:16,500 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-11-16 23:59:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:59:16,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-16 23:59:16,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:16,633 INFO L225 Difference]: With dead ends: 25916 [2021-11-16 23:59:16,633 INFO L226 Difference]: Without dead ends: 25913 [2021-11-16 23:59:16,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:16,661 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:16,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:59:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-11-16 23:59:17,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-11-16 23:59:17,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 18186 states have (on average 1.391949851534147) internal successors, (25314), 18708 states have internal predecessors, (25314), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-16 23:59:17,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-11-16 23:59:17,565 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-11-16 23:59:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:17,566 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-11-16 23:59:17,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-11-16 23:59:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-16 23:59:17,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:17,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:17,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-16 23:59:17,569 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:17,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-11-16 23:59:17,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:17,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188515075] [2021-11-16 23:59:17,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:17,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:17,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-16 23:59:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:17,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:17,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188515075] [2021-11-16 23:59:17,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188515075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:17,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:17,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:59:17,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197345152] [2021-11-16 23:59:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:17,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:59:17,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:17,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:59:17,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:17,772 INFO L87 Difference]: Start difference. First operand 25913 states and 38615 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:19,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:20,337 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-11-16 23:59:20,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:59:20,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-16 23:59:20,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:20,468 INFO L225 Difference]: With dead ends: 25915 [2021-11-16 23:59:20,468 INFO L226 Difference]: Without dead ends: 25912 [2021-11-16 23:59:20,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:20,493 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:20,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:59:20,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-11-16 23:59:21,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-11-16 23:59:21,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25912 states, 18186 states have (on average 1.3918948641812383) internal successors, (25313), 18707 states have internal predecessors, (25313), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-11-16 23:59:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-11-16 23:59:21,470 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-11-16 23:59:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:21,471 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-11-16 23:59:21,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-11-16 23:59:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-16 23:59:21,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:21,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:21,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-16 23:59:21,475 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:21,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-11-16 23:59:21,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:21,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336992736] [2021-11-16 23:59:21,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:21,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-16 23:59:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:21,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:21,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336992736] [2021-11-16 23:59:21,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336992736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:21,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:21,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:59:21,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608823696] [2021-11-16 23:59:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:21,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:59:21,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:59:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:21,647 INFO L87 Difference]: Start difference. First operand 25912 states and 38613 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:23,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:24,587 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-11-16 23:59:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:59:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-16 23:59:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:24,753 INFO L225 Difference]: With dead ends: 40287 [2021-11-16 23:59:24,754 INFO L226 Difference]: Without dead ends: 40283 [2021-11-16 23:59:24,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:24,774 INFO L933 BasicCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:24,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:59:24,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-11-16 23:59:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-11-16 23:59:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40281 states, 28147 states have (on average 1.3720467545386719) internal successors, (38619), 28925 states have internal predecessors, (38619), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2021-11-16 23:59:25,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-11-16 23:59:25,972 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-11-16 23:59:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:25,973 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-11-16 23:59:25,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:25,974 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-11-16 23:59:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-16 23:59:25,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:25,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:25,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-16 23:59:25,977 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:25,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:25,977 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-11-16 23:59:25,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:25,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583160714] [2021-11-16 23:59:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:25,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-16 23:59:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:26,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:26,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583160714] [2021-11-16 23:59:26,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583160714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:26,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:26,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:59:26,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114632335] [2021-11-16 23:59:26,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:26,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:59:26,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:26,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:59:26,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:26,166 INFO L87 Difference]: Start difference. First operand 40281 states and 59253 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:28,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:28,881 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-11-16 23:59:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:59:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-16 23:59:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:29,136 INFO L225 Difference]: With dead ends: 40283 [2021-11-16 23:59:29,136 INFO L226 Difference]: Without dead ends: 40191 [2021-11-16 23:59:29,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:59:29,185 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:29,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:59:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-11-16 23:59:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-11-16 23:59:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40191 states, 28098 states have (on average 1.3718414122001565) internal successors, (38546), 28868 states have internal predecessors, (38546), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2021-11-16 23:59:30,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-11-16 23:59:30,630 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-11-16 23:59:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:30,630 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-11-16 23:59:30,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-16 23:59:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-11-16 23:59:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-16 23:59:30,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:30,645 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-16 23:59:30,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-16 23:59:30,646 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:30,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-11-16 23:59:30,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:30,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849406387] [2021-11-16 23:59:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:30,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-16 23:59:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-16 23:59:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-16 23:59:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-16 23:59:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 23:59:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 23:59:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-16 23:59:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:30,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:30,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849406387] [2021-11-16 23:59:30,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849406387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:30,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:30,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 23:59:30,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046838427] [2021-11-16 23:59:30,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:30,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 23:59:30,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:30,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 23:59:30,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-16 23:59:30,900 INFO L87 Difference]: Start difference. First operand 40191 states and 59115 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-16 23:59:32,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:35,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:41,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:41,785 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-11-16 23:59:41,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 23:59:41,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2021-11-16 23:59:41,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:42,264 INFO L225 Difference]: With dead ends: 108621 [2021-11-16 23:59:42,264 INFO L226 Difference]: Without dead ends: 68433 [2021-11-16 23:59:42,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-16 23:59:42,404 INFO L933 BasicCegarLoop]: 9375 mSDtfsCounter, 5727 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 2854 mSolverCounterSat, 1848 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6547 SdHoareTripleChecker+Valid, 18637 SdHoareTripleChecker+Invalid, 4704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1848 IncrementalHoareTripleChecker+Valid, 2854 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:42,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6547 Valid, 18637 Invalid, 4704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1848 Valid, 2854 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2021-11-16 23:59:42,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-11-16 23:59:44,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-11-16 23:59:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59224 states, 41416 states have (on average 1.372416457407765) internal successors, (56840), 42552 states have internal predecessors, (56840), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2021-11-16 23:59:44,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-11-16 23:59:44,624 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-11-16 23:59:44,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:59:44,626 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-11-16 23:59:44,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-16 23:59:44,627 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-11-16 23:59:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-16 23:59:44,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:59:44,641 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:59:44,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-16 23:59:44,642 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:59:44,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:59:44,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-11-16 23:59:44,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:59:44,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799949457] [2021-11-16 23:59:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:59:44,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:59:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-16 23:59:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-16 23:59:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-16 23:59:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-16 23:59:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 23:59:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 23:59:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-16 23:59:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:59:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:59:44,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:59:44,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799949457] [2021-11-16 23:59:44,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799949457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:59:44,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:59:44,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 23:59:44,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794226467] [2021-11-16 23:59:44,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:59:44,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 23:59:44,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:59:44,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 23:59:44,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-16 23:59:44,854 INFO L87 Difference]: Start difference. First operand 59224 states and 87145 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-16 23:59:46,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:48,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:59:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:59:56,421 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-11-16 23:59:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 23:59:56,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2021-11-16 23:59:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:59:56,979 INFO L225 Difference]: With dead ends: 159432 [2021-11-16 23:59:56,980 INFO L226 Difference]: Without dead ends: 100211 [2021-11-16 23:59:57,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-16 23:59:57,280 INFO L933 BasicCegarLoop]: 9297 mSDtfsCounter, 5724 mSDsluCounter, 9186 mSDsCounter, 0 mSdLazyCounter, 2854 mSolverCounterSat, 1861 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6548 SdHoareTripleChecker+Valid, 18483 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1861 IncrementalHoareTripleChecker+Valid, 2854 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-16 23:59:57,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6548 Valid, 18483 Invalid, 4717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1861 Valid, 2854 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-11-16 23:59:57,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2021-11-16 23:59:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2021-11-16 23:59:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86716 states, 60662 states have (on average 1.3732484916422143) internal successors, (83304), 62328 states have internal predecessors, (83304), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2021-11-17 00:00:00,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2021-11-17 00:00:00,118 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 77 [2021-11-17 00:00:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:00:00,119 INFO L470 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2021-11-17 00:00:00,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 00:00:00,119 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2021-11-17 00:00:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-17 00:00:00,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:00:00,132 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 00:00:00,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 00:00:00,133 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:00:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:00:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2021-11-17 00:00:00,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:00:00,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63776191] [2021-11-17 00:00:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:00:00,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:00:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 00:00:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 00:00:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 00:00:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:00:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:00:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:00:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 00:00:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:00,604 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 00:00:00,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:00:00,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63776191] [2021-11-17 00:00:00,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63776191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:00:00,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:00:00,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 00:00:00,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284397641] [2021-11-17 00:00:00,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:00:00,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 00:00:00,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:00:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 00:00:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 00:00:00,606 INFO L87 Difference]: Start difference. First operand 86716 states and 127673 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 00:00:02,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:00:04,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:00:14,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:00:14,035 INFO L93 Difference]: Finished difference Result 232160 states and 345280 transitions. [2021-11-17 00:00:14,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 00:00:14,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2021-11-17 00:00:14,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:00:15,188 INFO L225 Difference]: With dead ends: 232160 [2021-11-17 00:00:15,189 INFO L226 Difference]: Without dead ends: 145447 [2021-11-17 00:00:15,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 00:00:15,517 INFO L933 BasicCegarLoop]: 9360 mSDtfsCounter, 5703 mSDsluCounter, 9218 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 1849 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6524 SdHoareTripleChecker+Valid, 18578 SdHoareTripleChecker+Invalid, 4707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1849 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-17 00:00:15,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6524 Valid, 18578 Invalid, 4707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1849 Valid, 2856 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-11-17 00:00:15,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145447 states. [2021-11-17 00:00:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145447 to 125840. [2021-11-17 00:00:19,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125840 states, 88068 states have (on average 1.3744606440477813) internal successors, (121046), 90491 states have internal predecessors, (121046), 32195 states have call successors, (32195), 5577 states have call predecessors, (32195), 5576 states have return successors, (32194), 31856 states have call predecessors, (32194), 32194 states have call successors, (32194) [2021-11-17 00:00:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125840 states to 125840 states and 185435 transitions. [2021-11-17 00:00:20,905 INFO L78 Accepts]: Start accepts. Automaton has 125840 states and 185435 transitions. Word has length 79 [2021-11-17 00:00:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:00:20,907 INFO L470 AbstractCegarLoop]: Abstraction has 125840 states and 185435 transitions. [2021-11-17 00:00:20,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 00:00:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 125840 states and 185435 transitions. [2021-11-17 00:00:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-17 00:00:20,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:00:20,942 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:00:20,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 00:00:20,942 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:00:20,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:00:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1778842699, now seen corresponding path program 1 times [2021-11-17 00:00:20,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:00:20,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308377188] [2021-11-17 00:00:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:00:20,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:00:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 00:00:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 00:00:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 00:00:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:00:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:00:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:00:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 00:00:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:00:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:00:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:00:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:00:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 00:00:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:00:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-17 00:00:21,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:00:21,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308377188] [2021-11-17 00:00:21,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308377188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:00:21,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:00:21,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 00:00:21,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221260666] [2021-11-17 00:00:21,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:00:21,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 00:00:21,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:00:21,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 00:00:21,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 00:00:21,234 INFO L87 Difference]: Start difference. First operand 125840 states and 185435 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 00:00:23,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:00:25,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:00:27,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:00:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:00:39,030 INFO L93 Difference]: Finished difference Result 153159 states and 230527 transitions. [2021-11-17 00:00:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:00:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2021-11-17 00:00:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:00:39,071 INFO L225 Difference]: With dead ends: 153159 [2021-11-17 00:00:39,072 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 00:00:39,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 00:00:39,730 INFO L933 BasicCegarLoop]: 7391 mSDtfsCounter, 4153 mSDsluCounter, 11351 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 1660 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4794 SdHoareTripleChecker+Valid, 18742 SdHoareTripleChecker+Invalid, 7285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1660 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-17 00:00:39,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4794 Valid, 18742 Invalid, 7285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1660 Valid, 5622 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2021-11-17 00:00:39,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 00:00:39,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 00:00:39,730 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) [2021-11-17 00:00:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 00:00:39,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2021-11-17 00:00:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:00:39,749 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 00:00:39,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 00:00:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 00:00:39,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 00:00:39,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 00:00:39,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 00:00:39,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.