./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 e19ca921 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 0.2.2-dev-e19ca92 [2021-12-22 14:32:37,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:32:37,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:32:37,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:32:37,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:32:37,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:32:37,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:32:37,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:32:37,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:32:37,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:32:37,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:32:37,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:32:37,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:32:37,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:32:37,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:32:37,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:32:37,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:32:37,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:32:37,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:32:37,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:32:37,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:32:37,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:32:37,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:32:37,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:32:37,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:32:37,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:32:37,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:32:37,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:32:37,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:32:37,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:32:37,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:32:37,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:32:37,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:32:37,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:32:37,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:32:37,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:32:37,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:32:37,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:32:37,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:32:37,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:32:37,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:32:37,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:32:37,336 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:32:37,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:32:37,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:32:37,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:32:37,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:32:37,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:32:37,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:32:37,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:32:37,339 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:32:37,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:32:37,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:32:37,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:32:37,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:32:37,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:32:37,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:32:37,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:32:37,340 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:32:37,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:32:37,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:32:37,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:32:37,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:32:37,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:32:37,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:32:37,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:32:37,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:32:37,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:32:37,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:32:37,342 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:32:37,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:32:37,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:32:37,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:32:37,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-12-22 14:32:37,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:32:37,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:32:37,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:32:37,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:32:37,562 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:32:37,564 INFO L432 ainManager$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 [2021-12-22 14:32:37,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca710be8a/2da1542c7817489c81a0703059f6a080/FLAG346dfe47c [2021-12-22 14:32:38,705 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:32:38,706 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 [2021-12-22 14:32:38,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca710be8a/2da1542c7817489c81a0703059f6a080/FLAG346dfe47c [2021-12-22 14:32:39,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca710be8a/2da1542c7817489c81a0703059f6a080 [2021-12-22 14:32:39,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:32:39,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:32:39,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:32:39,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:32:39,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:32:39,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:39,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4695534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:39, skipping insertion in model container [2021-12-22 14:32:39,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:39" (1/1) ... [2021-12-22 14:32:39,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:32:39,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:32:42,483 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] [2021-12-22 14:32:42,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:32:42,761 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:32:43,375 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] [2021-12-22 14:32:43,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:32:43,507 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:32:43,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43 WrapperNode [2021-12-22 14:32:43,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:32:43,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:32:43,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:32:43,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:32:43,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:43,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,014 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2021-12-22 14:32:44,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:32:44,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:32:44,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:32:44,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:32:44,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:32:44,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:32:44,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:32:44,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:32:44,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (1/1) ... [2021-12-22 14:32:44,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:32:44,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:32:44,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:32:44,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:32:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-12-22 14:32:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-12-22 14:32:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 14:32:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 14:32:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-22 14:32:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-22 14:32:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-22 14:32:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-22 14:32:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-12-22 14:32:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-12-22 14:32:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-12-22 14:32:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-12-22 14:32:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-22 14:32:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-22 14:32:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-12-22 14:32:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-12-22 14:32:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-22 14:32:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-22 14:32:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-12-22 14:32:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-12-22 14:32:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-12-22 14:32:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-12-22 14:32:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:32:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:32:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-22 14:32:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-22 14:32:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-12-22 14:32:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-12-22 14:32:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-12-22 14:32:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-12-22 14:32:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-12-22 14:32:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-12-22 14:32:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-12-22 14:32:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-12-22 14:32:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-12-22 14:32:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-12-22 14:32:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-12-22 14:32:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-12-22 14:32:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-12-22 14:32:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-12-22 14:32:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:32:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:32:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:32:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:32:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-12-22 14:32:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-12-22 14:32:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-12-22 14:32:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-12-22 14:32:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-12-22 14:32:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-12-22 14:32:44,840 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:32:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:32:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:32:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:32:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-12-22 14:32:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-12-22 14:32:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-12-22 14:32:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-12-22 14:32:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-12-22 14:32:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-12-22 14:32:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-12-22 14:32:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-12-22 14:32:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 14:32:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 14:32:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:32:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:32:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-12-22 14:32:44,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-12-22 14:32:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-12-22 14:32:44,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-12-22 14:32:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-12-22 14:32:44,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-12-22 14:32:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-22 14:32:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-22 14:32:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-22 14:32:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-22 14:32:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:32:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-12-22 14:32:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-12-22 14:32:44,847 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:32:44,848 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:32:44,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:32:44,848 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-22 14:32:44,848 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-22 14:32:44,848 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-12-22 14:32:44,848 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-12-22 14:32:44,848 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-12-22 14:32:44,848 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-12-22 14:32:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-12-22 14:32:44,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-12-22 14:32:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-12-22 14:32:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-12-22 14:32:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:32:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:32:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-22 14:32:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-22 14:32:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-12-22 14:32:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-12-22 14:32:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-12-22 14:32:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-12-22 14:32:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:32:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-12-22 14:32:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-12-22 14:32:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-12-22 14:32:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-12-22 14:32:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:32:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-12-22 14:32:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-12-22 14:32:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-22 14:32:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-22 14:32:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-22 14:32:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-22 14:32:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-12-22 14:32:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-12-22 14:32:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-22 14:32:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-22 14:32:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 14:32:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 14:32:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-22 14:32:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-22 14:32:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:32:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:32:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:32:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:32:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:32:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:32:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-12-22 14:32:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-12-22 14:32:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-12-22 14:32:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-12-22 14:32:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:32:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:32:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-22 14:32:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-22 14:32:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-12-22 14:32:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-12-22 14:32:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-12-22 14:32:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-12-22 14:32:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-12-22 14:32:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-12-22 14:32:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:32:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:32:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-22 14:32:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-22 14:32:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:32:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:32:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-12-22 14:32:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-12-22 14:32:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-12-22 14:32:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-12-22 14:32:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-12-22 14:32:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-12-22 14:32:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:32:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-12-22 14:32:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-12-22 14:32:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-12-22 14:32:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-12-22 14:32:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-12-22 14:32:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-12-22 14:32:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-12-22 14:32:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-12-22 14:32:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-12-22 14:32:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-12-22 14:32:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-12-22 14:32:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-12-22 14:32:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-12-22 14:32:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-12-22 14:32:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-12-22 14:32:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-12-22 14:32:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-12-22 14:32:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-12-22 14:32:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-12-22 14:32:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-12-22 14:32:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-12-22 14:32:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-12-22 14:32:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-12-22 14:32:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-12-22 14:32:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:32:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:32:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-12-22 14:32:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-12-22 14:32:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-22 14:32:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-22 14:32:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-12-22 14:32:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-12-22 14:32:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:32:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-12-22 14:32:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-12-22 14:32:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-12-22 14:32:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-12-22 14:32:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 14:32:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 14:32:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:32:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:32:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-12-22 14:32:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-12-22 14:32:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:32:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-22 14:32:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-22 14:32:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-12-22 14:32:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-12-22 14:32:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-12-22 14:32:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-12-22 14:32:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 14:32:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 14:32:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:32:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-12-22 14:32:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-12-22 14:32:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-22 14:32:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-22 14:32:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 14:32:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 14:32:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:32:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-12-22 14:32:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-12-22 14:32:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-12-22 14:32:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-12-22 14:32:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-12-22 14:32:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-12-22 14:32:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:32:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:32:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-12-22 14:32:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-12-22 14:32:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-22 14:32:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-22 14:32:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-12-22 14:32:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-12-22 14:32:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:32:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:32:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-12-22 14:32:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-12-22 14:32:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-12-22 14:32:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-12-22 14:32:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 14:32:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 14:32:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-12-22 14:32:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-12-22 14:32:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-12-22 14:32:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-12-22 14:32:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-12-22 14:32:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-12-22 14:32:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-12-22 14:32:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-12-22 14:32:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-12-22 14:32:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-12-22 14:32:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-22 14:32:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-22 14:32:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-12-22 14:32:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-12-22 14:32:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-12-22 14:32:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-12-22 14:32:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-12-22 14:32:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-12-22 14:32:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-12-22 14:32:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-12-22 14:32:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-22 14:32:44,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-22 14:32:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:32:44,903 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:32:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 14:32:44,904 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 14:32:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-12-22 14:32:44,904 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-12-22 14:32:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:32:44,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:32:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-12-22 14:32:44,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-12-22 14:32:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-12-22 14:32:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-12-22 14:32:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-22 14:32:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-22 14:32:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:32:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:32:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-12-22 14:32:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-12-22 14:32:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-12-22 14:32:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-12-22 14:32:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-12-22 14:32:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-12-22 14:32:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:32:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:32:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:32:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-22 14:32:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-22 14:32:46,229 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:32:46,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:32:51,641 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:32:51,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:32:51,665 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-22 14:32:51,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:32:51 BoogieIcfgContainer [2021-12-22 14:32:51,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:32:51,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:32:51,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:32:51,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:32:51,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:32:39" (1/3) ... [2021-12-22 14:32:51,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2987e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:32:51, skipping insertion in model container [2021-12-22 14:32:51,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:43" (2/3) ... [2021-12-22 14:32:51,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2987e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:32:51, skipping insertion in model container [2021-12-22 14:32:51,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:32:51" (3/3) ... [2021-12-22 14:32:51,675 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-22 14:32:51,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:32:51,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:32:51,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:32:51,725 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:32:51,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:32:51,781 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) [2021-12-22 14:32:51,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-22 14:32:51,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:32:51,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:32:51,787 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:32:51,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:32:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-12-22 14:32:51,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:32:51,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145289110] [2021-12-22 14:32:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:32:51,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:32:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:32:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:32:52,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:32:52,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145289110] [2021-12-22 14:32:52,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145289110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:32:52,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:32:52,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:32:52,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982513336] [2021-12-22 14:32:52,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:32:52,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:32:52,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:32:52,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:32:52,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:32:52,263 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) [2021-12-22 14:32:52,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:32:52,724 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-12-22 14:32:52,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:32:52,727 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 [2021-12-22 14:32:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:32:52,789 INFO L225 Difference]: With dead ends: 9883 [2021-12-22 14:32:52,789 INFO L226 Difference]: Without dead ends: 6563 [2021-12-22 14:32:52,823 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 [2021-12-22 14:32:52,827 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 [2021-12-22 14:32:52,828 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] [2021-12-22 14:32:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-12-22 14:32:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-12-22 14:32:53,361 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) [2021-12-22 14:32:53,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-12-22 14:32:53,469 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-12-22 14:32:53,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:32:53,470 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-12-22 14:32:53,470 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) [2021-12-22 14:32:53,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-12-22 14:32:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-22 14:32:53,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:32:53,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:32:53,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:32:53,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:32:53,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:32:53,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-12-22 14:32:53,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:32:53,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703375823] [2021-12-22 14:32:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:32:53,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:32:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:32:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:32:53,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:32:53,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703375823] [2021-12-22 14:32:53,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703375823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:32:53,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:32:53,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:32:53,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065302866] [2021-12-22 14:32:53,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:32:53,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:32:53,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:32:53,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:32:53,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:32:53,699 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) [2021-12-22 14:32:54,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:32:54,043 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-12-22 14:32:54,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:32:54,044 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 [2021-12-22 14:32:54,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:32:54,138 INFO L225 Difference]: With dead ends: 19597 [2021-12-22 14:32:54,139 INFO L226 Difference]: Without dead ends: 13051 [2021-12-22 14:32:54,183 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 [2021-12-22 14:32:54,184 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 [2021-12-22 14:32:54,185 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] [2021-12-22 14:32:54,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-12-22 14:32:54,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-12-22 14:32:54,832 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) [2021-12-22 14:32:54,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-12-22 14:32:54,910 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-12-22 14:32:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:32:54,911 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-12-22 14:32:54,911 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) [2021-12-22 14:32:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-12-22 14:32:54,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-22 14:32:54,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:32:54,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:32:54,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:32:54,914 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:32:54,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:32:54,915 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-12-22 14:32:54,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:32:54,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189206039] [2021-12-22 14:32:54,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:32:54,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:32:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:32:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:32:55,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:32:55,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189206039] [2021-12-22 14:32:55,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189206039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:32:55,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:32:55,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:32:55,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027523321] [2021-12-22 14:32:55,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:32:55,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:32:55,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:32:55,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:32:55,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:32:55,166 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) [2021-12-22 14:32:55,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:32:55,920 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-12-22 14:32:55,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:32:55,921 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 [2021-12-22 14:32:55,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:32:56,094 INFO L225 Difference]: With dead ends: 38959 [2021-12-22 14:32:56,094 INFO L226 Difference]: Without dead ends: 25925 [2021-12-22 14:32:56,168 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 [2021-12-22 14:32:56,171 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 [2021-12-22 14:32:56,172 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] [2021-12-22 14:32:56,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-12-22 14:32:57,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-12-22 14:32:57,453 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) [2021-12-22 14:32:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-12-22 14:32:57,641 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-12-22 14:32:57,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:32:57,641 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-12-22 14:32:57,641 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) [2021-12-22 14:32:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-12-22 14:32:57,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-22 14:32:57,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:32:57,644 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] [2021-12-22 14:32:57,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:32:57,645 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:32:57,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:32:57,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-12-22 14:32:57,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:32:57,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001039652] [2021-12-22 14:32:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:32:57,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:32:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:32:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:32:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:32:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:32:58,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:32:58,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001039652] [2021-12-22 14:32:58,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001039652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:32:58,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:32:58,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:32:58,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038214992] [2021-12-22 14:32:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:32:58,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:32:58,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:32:58,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:32:58,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:32:58,156 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) [2021-12-22 14:32:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:32:59,243 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-12-22 14:32:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:32:59,244 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 [2021-12-22 14:32:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:32:59,496 INFO L225 Difference]: With dead ends: 51854 [2021-12-22 14:32:59,497 INFO L226 Difference]: Without dead ends: 25946 [2021-12-22 14:32:59,583 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 [2021-12-22 14:32:59,588 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:32:59,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:32:59,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-12-22 14:33:00,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-12-22 14:33:00,506 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) [2021-12-22 14:33:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-12-22 14:33:00,892 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-12-22 14:33:00,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:00,893 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-12-22 14:33:00,893 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) [2021-12-22 14:33:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-12-22 14:33:00,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-22 14:33:00,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:00,896 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] [2021-12-22 14:33:00,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:33:00,897 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:00,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:00,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-12-22 14:33:00,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:00,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273432836] [2021-12-22 14:33:00,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:00,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:33:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:01,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:01,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273432836] [2021-12-22 14:33:01,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273432836] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:01,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:01,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:01,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661278507] [2021-12-22 14:33:01,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:01,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:01,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:01,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:01,111 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) [2021-12-22 14:33:01,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:01,791 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-12-22 14:33:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:01,792 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 [2021-12-22 14:33:01,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:01,920 INFO L225 Difference]: With dead ends: 25916 [2021-12-22 14:33:01,921 INFO L226 Difference]: Without dead ends: 25913 [2021-12-22 14:33:01,933 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 [2021-12-22 14:33:01,933 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:01,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:33:01,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-12-22 14:33:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-12-22 14:33:02,953 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) [2021-12-22 14:33:03,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-12-22 14:33:03,084 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-12-22 14:33:03,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:03,085 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-12-22 14:33:03,085 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) [2021-12-22 14:33:03,085 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-12-22 14:33:03,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-22 14:33:03,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:03,088 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] [2021-12-22 14:33:03,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:33:03,089 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:03,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:03,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-12-22 14:33:03,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:03,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313385490] [2021-12-22 14:33:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:03,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:03,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:33:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:03,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:03,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313385490] [2021-12-22 14:33:03,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313385490] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:03,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:03,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:03,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323359624] [2021-12-22 14:33:03,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:03,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:03,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:03,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:03,320 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) [2021-12-22 14:33:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:03,865 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-12-22 14:33:03,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:03,866 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 [2021-12-22 14:33:03,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:04,018 INFO L225 Difference]: With dead ends: 25915 [2021-12-22 14:33:04,018 INFO L226 Difference]: Without dead ends: 25912 [2021-12-22 14:33:04,041 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 [2021-12-22 14:33:04,056 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:04,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:33:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-12-22 14:33:05,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-12-22 14:33:05,248 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) [2021-12-22 14:33:05,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-12-22 14:33:05,407 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-12-22 14:33:05,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:05,408 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-12-22 14:33:05,408 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) [2021-12-22 14:33:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-12-22 14:33:05,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-22 14:33:05,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:05,413 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] [2021-12-22 14:33:05,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:33:05,413 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:05,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:05,414 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-12-22 14:33:05,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:05,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262941951] [2021-12-22 14:33:05,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:05,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:33:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:05,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:05,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262941951] [2021-12-22 14:33:05,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262941951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:05,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:05,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:05,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105074147] [2021-12-22 14:33:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:05,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:05,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:05,680 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) [2021-12-22 14:33:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:06,556 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-12-22 14:33:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:06,557 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 [2021-12-22 14:33:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:06,780 INFO L225 Difference]: With dead ends: 40287 [2021-12-22 14:33:06,780 INFO L226 Difference]: Without dead ends: 40283 [2021-12-22 14:33:06,817 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 [2021-12-22 14:33:06,818 INFO L933 BasicCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:06,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:33:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-12-22 14:33:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-12-22 14:33:08,220 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) [2021-12-22 14:33:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-12-22 14:33:08,574 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-12-22 14:33:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:08,575 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-12-22 14:33:08,575 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) [2021-12-22 14:33:08,578 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-12-22 14:33:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-22 14:33:08,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:08,581 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] [2021-12-22 14:33:08,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 14:33:08,582 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:08,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-12-22 14:33:08,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:08,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094994352] [2021-12-22 14:33:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:08,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:33:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:08,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:08,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:08,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094994352] [2021-12-22 14:33:08,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094994352] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:08,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:08,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:08,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295819847] [2021-12-22 14:33:08,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:08,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:08,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:08,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:08,774 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) [2021-12-22 14:33:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:09,729 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-12-22 14:33:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:09,734 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 [2021-12-22 14:33:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:09,890 INFO L225 Difference]: With dead ends: 40283 [2021-12-22 14:33:09,890 INFO L226 Difference]: Without dead ends: 40191 [2021-12-22 14:33:09,916 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 [2021-12-22 14:33:09,917 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:09,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:33:09,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-12-22 14:33:11,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-12-22 14:33:11,255 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) [2021-12-22 14:33:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-12-22 14:33:11,506 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-12-22 14:33:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:11,507 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-12-22 14:33:11,507 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) [2021-12-22 14:33:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-12-22 14:33:11,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-22 14:33:11,522 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:11,522 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] [2021-12-22 14:33:11,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 14:33:11,523 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:11,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:11,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-12-22 14:33:11,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:11,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928675164] [2021-12-22 14:33:11,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:11,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:33:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 14:33:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 14:33:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:33:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:33:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:33:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:11,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:11,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928675164] [2021-12-22 14:33:11,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928675164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:11,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:11,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:33:11,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907229024] [2021-12-22 14:33:11,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:11,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:33:11,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:11,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:33:11,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:33:11,839 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) [2021-12-22 14:33:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:19,495 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-12-22 14:33:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:33:19,496 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 [2021-12-22 14:33:19,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:19,836 INFO L225 Difference]: With dead ends: 108621 [2021-12-22 14:33:19,837 INFO L226 Difference]: Without dead ends: 68433 [2021-12-22 14:33:19,987 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 [2021-12-22 14:33:19,988 INFO L933 BasicCegarLoop]: 9402 mSDtfsCounter, 5685 mSDsluCounter, 9239 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 1846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6505 SdHoareTripleChecker+Valid, 18641 SdHoareTripleChecker+Invalid, 4703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1846 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:19,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6505 Valid, 18641 Invalid, 4703 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1846 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-22 14:33:20,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-12-22 14:33:22,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-12-22 14:33:22,964 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) [2021-12-22 14:33:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-12-22 14:33:23,280 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-12-22 14:33:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:23,281 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-12-22 14:33:23,281 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) [2021-12-22 14:33:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-12-22 14:33:23,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-22 14:33:23,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:23,299 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] [2021-12-22 14:33:23,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 14:33:23,299 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:23,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-12-22 14:33:23,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:23,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942327033] [2021-12-22 14:33:23,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:23,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:33:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 14:33:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 14:33:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:33:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:33:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:33:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:23,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:23,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942327033] [2021-12-22 14:33:23,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942327033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:23,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:23,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:33:23,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949797127] [2021-12-22 14:33:23,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:23,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:33:23,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:33:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:33:23,587 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) [2021-12-22 14:33:31,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:31,373 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-12-22 14:33:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:33:31,374 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 [2021-12-22 14:33:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:32,202 INFO L225 Difference]: With dead ends: 159432 [2021-12-22 14:33:32,203 INFO L226 Difference]: Without dead ends: 100211 [2021-12-22 14:33:32,395 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 [2021-12-22 14:33:32,397 INFO L933 BasicCegarLoop]: 9292 mSDtfsCounter, 5729 mSDsluCounter, 9189 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 1862 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6553 SdHoareTripleChecker+Valid, 18481 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1862 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:32,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6553 Valid, 18481 Invalid, 4717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1862 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-22 14:33:32,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states.