./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b84718ab53315b4fb0ea63ba4ff58d4e41800b214902f4639c5f6698ca2778b0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:15:12,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:15:12,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:15:12,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:15:12,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:15:12,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:15:12,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:15:12,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:15:12,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:15:12,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:15:12,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:15:12,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:15:12,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:15:12,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:15:12,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:15:12,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:15:12,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:15:12,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:15:12,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:15:12,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:15:12,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:15:12,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:15:12,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:15:12,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:15:12,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:15:12,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:15:12,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:15:12,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:15:12,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:15:12,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:15:12,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:15:12,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:15:12,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:15:12,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:15:12,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:15:12,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:15:12,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:15:12,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:15:12,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:15:12,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:15:12,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:15:12,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:15:12,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:15:12,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:15:12,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:15:12,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:15:12,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:15:12,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:15:12,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:15:12,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:15:12,606 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:15:12,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:15:12,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:15:12,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:15:12,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:15:12,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:15:12,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:15:12,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:15:12,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:15:12,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:15:12,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:15:12,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:15:12,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:15:12,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:15:12,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:15:12,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:15:12,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:15:12,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:15:12,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:15:12,610 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:15:12,610 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:15:12,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:15:12,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:15:12,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b84718ab53315b4fb0ea63ba4ff58d4e41800b214902f4639c5f6698ca2778b0 [2021-12-21 16:15:12,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:15:12,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:15:12,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:15:12,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:15:12,832 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:15:12,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i [2021-12-21 16:15:12,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aed31f4/a1feea5b8cd94e169037f944575c8f0d/FLAG17b90b8fd [2021-12-21 16:15:13,525 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:15:13,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i [2021-12-21 16:15:13,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aed31f4/a1feea5b8cd94e169037f944575c8f0d/FLAG17b90b8fd [2021-12-21 16:15:13,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aed31f4/a1feea5b8cd94e169037f944575c8f0d [2021-12-21 16:15:13,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:15:13,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:15:13,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:15:13,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:15:13,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:15:13,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:15:13" (1/1) ... [2021-12-21 16:15:13,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd77950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:13, skipping insertion in model container [2021-12-21 16:15:13,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:15:13" (1/1) ... [2021-12-21 16:15:13,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:15:14,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:15:14,375 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-12-21 16:15:14,376 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1725-1726] [2021-12-21 16:15:14,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i[57371,57384] [2021-12-21 16:15:15,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:15:15,258 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:15:15,305 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-12-21 16:15:15,306 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1725-1726] [2021-12-21 16:15:15,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i[57371,57384] [2021-12-21 16:15:15,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:15:15,651 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:15:15,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15 WrapperNode [2021-12-21 16:15:15,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:15:15,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:15:15,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:15:15,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:15:15,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:15,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:15,858 INFO L137 Inliner]: procedures = 276, calls = 1927, calls flagged for inlining = 125, calls inlined = 123, statements flattened = 4524 [2021-12-21 16:15:15,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:15:15,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:15:15,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:15:15,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:15:15,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:15,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:15,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:15,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:16,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:16,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:16,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:16,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:15:16,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:15:16,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:15:16,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:15:16,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (1/1) ... [2021-12-21 16:15:16,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:15:16,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:15:16,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 16:15:16,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 16:15:16,188 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_stall [2021-12-21 16:15:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_stall [2021-12-21 16:15:16,188 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_clr [2021-12-21 16:15:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_clr [2021-12-21 16:15:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_status [2021-12-21 16:15:16,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_status [2021-12-21 16:15:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:15:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:15:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init_setup_buff [2021-12-21 16:15:16,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init_setup_buff [2021-12-21 16:15:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_set [2021-12-21 16:15:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_set [2021-12-21 16:15:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:15:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:15:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-21 16:15:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-21 16:15:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-21 16:15:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-21 16:15:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:15:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:15:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:15:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:15:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-21 16:15:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-21 16:15:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_shutdown [2021-12-21 16:15:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_shutdown [2021-12-21 16:15:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_dma [2021-12-21 16:15:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_dma [2021-12-21 16:15:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_csr_busy [2021-12-21 16:15:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_csr_busy [2021-12-21 16:15:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 16:15:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 16:15:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_stop [2021-12-21 16:15:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_stop [2021-12-21 16:15:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-21 16:15:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-21 16:15:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_writel [2021-12-21 16:15:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_writel [2021-12-21 16:15:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:15:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:15:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 16:15:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 16:15:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_svc_data_out [2021-12-21 16:15:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_svc_data_out [2021-12-21 16:15:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_free_dma_chain [2021-12-21 16:15:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_free_dma_chain [2021-12-21 16:15:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:15:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:15:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-21 16:15:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-21 16:15:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_readl [2021-12-21 16:15:16,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_readl [2021-12-21 16:15:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:15:16,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:15:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 16:15:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 16:15:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_control [2021-12-21 16:15:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_control [2021-12-21 16:15:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-21 16:15:16,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-21 16:15:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_rrdy [2021-12-21 16:15:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_rrdy [2021-12-21 16:15:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_reconnect [2021-12-21 16:15:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_reconnect [2021-12-21 16:15:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:15:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_readl [2021-12-21 16:15:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_readl [2021-12-21 16:15:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:15:16,200 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:15:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_postsvc_epinters [2021-12-21 16:15:16,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_postsvc_epinters [2021-12-21 16:15:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-12-21 16:15:16,201 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-12-21 16:15:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:15:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 16:15:16,201 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 16:15:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-21 16:15:16,201 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-21 16:15:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_rxrequest [2021-12-21 16:15:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_rxrequest [2021-12-21 16:15:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 16:15:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 16:15:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-21 16:15:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-21 16:15:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:15:16,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:15:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-21 16:15:16,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-21 16:15:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-21 16:15:16,204 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-21 16:15:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:15:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_maxpkt [2021-12-21 16:15:16,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_maxpkt [2021-12-21 16:15:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:15:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:15:16,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:15:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_fifo_flush [2021-12-21 16:15:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_fifo_flush [2021-12-21 16:15:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_ep_interrupts [2021-12-21 16:15:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_ep_interrupts [2021-12-21 16:15:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_dma [2021-12-21 16:15:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_dma [2021-12-21 16:15:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_get_value [2021-12-21 16:15:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_get_value [2021-12-21 16:15:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 16:15:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 16:15:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:15:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:15:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_wait_ep_stall [2021-12-21 16:15:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_wait_ep_stall [2021-12-21 16:15:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:15:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-21 16:15:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-21 16:15:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_ep_interrupts [2021-12-21 16:15:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_ep_interrupts [2021-12-21 16:15:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:15:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:15:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-21 16:15:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-21 16:15:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_fifo_flush [2021-12-21 16:15:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_fifo_flush [2021-12-21 16:15:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_nak [2021-12-21 16:15:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_nak [2021-12-21 16:15:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-21 16:15:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-21 16:15:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:15:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure complete_req [2021-12-21 16:15:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_req [2021-12-21 16:15:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_writel [2021-12-21 16:15:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_writel [2021-12-21 16:15:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure empty_req_queue [2021-12-21 16:15:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_req_queue [2021-12-21 16:15:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:15:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 16:15:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 16:15:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_nak [2021-12-21 16:15:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_nak [2021-12-21 16:15:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-21 16:15:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-21 16:15:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_csr [2021-12-21 16:15:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_csr [2021-12-21 16:15:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:15:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:15:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start [2021-12-21 16:15:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start [2021-12-21 16:15:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:15:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:15:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_set [2021-12-21 16:15:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_set [2021-12-21 16:15:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_device_status [2021-12-21 16:15:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_device_status [2021-12-21 16:15:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:15:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:15:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-21 16:15:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-21 16:15:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_ddptr [2021-12-21 16:15:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_ddptr [2021-12-21 16:15:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:15:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 16:15:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 16:15:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-21 16:15:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-21 16:15:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:15:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:15:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_dequeue [2021-12-21 16:15:16,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_dequeue [2021-12-21 16:15:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_interrupts [2021-12-21 16:15:16,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_interrupts [2021-12-21 16:15:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_control [2021-12-21 16:15:16,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_control [2021-12-21 16:15:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_to_desc [2021-12-21 16:15:16,216 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_to_desc [2021-12-21 16:15:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_stall [2021-12-21 16:15:16,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_stall [2021-12-21 16:15:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:15:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init [2021-12-21 16:15:16,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init [2021-12-21 16:15:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-21 16:15:16,216 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-21 16:15:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_next_txrequest [2021-12-21 16:15:16,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_next_txrequest [2021-12-21 16:15:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:15:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-21 16:15:16,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-21 16:15:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_probe [2021-12-21 16:15:16,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_probe [2021-12-21 16:15:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:15:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:15:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:15:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:15:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:15:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:15:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:15:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_ep_interrupts [2021-12-21 16:15:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_ep_interrupts [2021-12-21 16:15:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-21 16:15:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-21 16:15:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_status [2021-12-21 16:15:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_status [2021-12-21 16:15:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_free_request [2021-12-21 16:15:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_free_request [2021-12-21 16:15:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_ep_enable [2021-12-21 16:15:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_ep_enable [2021-12-21 16:15:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_csr [2021-12-21 16:15:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_csr [2021-12-21 16:15:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-21 16:15:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-21 16:15:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_complete_transfer [2021-12-21 16:15:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_complete_transfer [2021-12-21 16:15:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_remove [2021-12-21 16:15:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_remove [2021-12-21 16:15:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 16:15:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 16:15:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_work_fall [2021-12-21 16:15:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_work_fall [2021-12-21 16:15:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 16:15:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 16:15:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2021-12-21 16:15:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2021-12-21 16:15:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_clr [2021-12-21 16:15:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_clr [2021-12-21 16:15:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:15:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:15:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:15:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:15:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_disconnect [2021-12-21 16:15:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_disconnect [2021-12-21 16:15:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:15:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_bufsz [2021-12-21 16:15:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_bufsz [2021-12-21 16:15:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:15:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:15:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_interrupts [2021-12-21 16:15:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_interrupts [2021-12-21 16:15:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-21 16:15:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-21 16:15:16,928 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:15:16,934 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:15:17,138 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:15:22,024 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:15:22,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:15:22,038 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-21 16:15:22,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:15:22 BoogieIcfgContainer [2021-12-21 16:15:22,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:15:22,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:15:22,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:15:22,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:15:22,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:15:13" (1/3) ... [2021-12-21 16:15:22,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f33b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:15:22, skipping insertion in model container [2021-12-21 16:15:22,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:15:15" (2/3) ... [2021-12-21 16:15:22,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f33b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:15:22, skipping insertion in model container [2021-12-21 16:15:22,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:15:22" (3/3) ... [2021-12-21 16:15:22,052 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i [2021-12-21 16:15:22,056 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:15:22,056 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:15:22,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:15:22,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:15:22,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:15:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 1795 states, 1184 states have (on average 1.3597972972972974) internal successors, (1610), 1255 states have internal predecessors, (1610), 505 states have call successors, (505), 110 states have call predecessors, (505), 109 states have return successors, (496), 482 states have call predecessors, (496), 496 states have call successors, (496) [2021-12-21 16:15:22,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-21 16:15:22,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:15:22,181 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:15:22,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:15:22,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:15:22,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1740150991, now seen corresponding path program 1 times [2021-12-21 16:15:22,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:15:22,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159222152] [2021-12-21 16:15:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:15:22,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:15:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:15:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:22,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:15:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:15:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:15:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 16:15:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-21 16:15:22,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:15:22,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159222152] [2021-12-21 16:15:22,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159222152] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:15:22,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:15:22,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:15:22,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928751842] [2021-12-21 16:15:22,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:15:22,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:15:22,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:15:22,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:15:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:15:22,888 INFO L87 Difference]: Start difference. First operand has 1795 states, 1184 states have (on average 1.3597972972972974) internal successors, (1610), 1255 states have internal predecessors, (1610), 505 states have call successors, (505), 110 states have call predecessors, (505), 109 states have return successors, (496), 482 states have call predecessors, (496), 496 states have call successors, (496) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-21 16:15:26,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:28,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:34,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:35,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:15:37,486 INFO L93 Difference]: Finished difference Result 5435 states and 8077 transitions. [2021-12-21 16:15:37,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:15:37,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 48 [2021-12-21 16:15:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:15:37,545 INFO L225 Difference]: With dead ends: 5435 [2021-12-21 16:15:37,545 INFO L226 Difference]: Without dead ends: 3602 [2021-12-21 16:15:37,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:15:37,570 INFO L933 BasicCegarLoop]: 2689 mSDtfsCounter, 3985 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 2913 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4303 SdHoareTripleChecker+Valid, 6074 SdHoareTripleChecker+Invalid, 6245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2913 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:15:37,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4303 Valid, 6074 Invalid, 6245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2913 Valid, 3329 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2021-12-21 16:15:37,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2021-12-21 16:15:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3299. [2021-12-21 16:15:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2160 states have (on average 1.3388888888888888) internal successors, (2892), 2267 states have internal predecessors, (2892), 922 states have call successors, (922), 217 states have call predecessors, (922), 216 states have return successors, (921), 893 states have call predecessors, (921), 921 states have call successors, (921) [2021-12-21 16:15:37,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4735 transitions. [2021-12-21 16:15:37,874 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4735 transitions. Word has length 48 [2021-12-21 16:15:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:15:37,876 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4735 transitions. [2021-12-21 16:15:37,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-21 16:15:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4735 transitions. [2021-12-21 16:15:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-21 16:15:37,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:15:37,884 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:15:37,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:15:37,885 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:15:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:15:37,888 INFO L85 PathProgramCache]: Analyzing trace with hash -701291158, now seen corresponding path program 1 times [2021-12-21 16:15:37,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:15:37,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247989389] [2021-12-21 16:15:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:15:37,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:15:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:15:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:15:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:38,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:15:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:38,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:15:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:38,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 16:15:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-21 16:15:38,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:15:38,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247989389] [2021-12-21 16:15:38,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247989389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:15:38,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:15:38,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:15:38,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894326942] [2021-12-21 16:15:38,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:15:38,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:15:38,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:15:38,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:15:38,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:15:38,171 INFO L87 Difference]: Start difference. First operand 3299 states and 4735 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-21 16:15:46,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:49,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:15:50,953 INFO L93 Difference]: Finished difference Result 10340 states and 14993 transitions. [2021-12-21 16:15:50,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:15:50,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-12-21 16:15:50,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:15:51,035 INFO L225 Difference]: With dead ends: 10340 [2021-12-21 16:15:51,038 INFO L226 Difference]: Without dead ends: 7054 [2021-12-21 16:15:51,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:15:51,058 INFO L933 BasicCegarLoop]: 3193 mSDtfsCounter, 3981 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 2731 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4326 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 6347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2731 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:15:51,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4326 Valid, 6979 Invalid, 6347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2731 Valid, 3614 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2021-12-21 16:15:51,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2021-12-21 16:15:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 6451. [2021-12-21 16:15:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6451 states, 4218 states have (on average 1.3380749170222854) internal successors, (5644), 4433 states have internal predecessors, (5644), 1804 states have call successors, (1804), 429 states have call predecessors, (1804), 428 states have return successors, (1803), 1746 states have call predecessors, (1803), 1803 states have call successors, (1803) [2021-12-21 16:15:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 9251 transitions. [2021-12-21 16:15:51,349 INFO L78 Accepts]: Start accepts. Automaton has 6451 states and 9251 transitions. Word has length 50 [2021-12-21 16:15:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:15:51,349 INFO L470 AbstractCegarLoop]: Abstraction has 6451 states and 9251 transitions. [2021-12-21 16:15:51,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-21 16:15:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 6451 states and 9251 transitions. [2021-12-21 16:15:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-21 16:15:51,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:15:51,359 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2021-12-21 16:15:51,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:15:51,362 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:15:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:15:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -782389508, now seen corresponding path program 1 times [2021-12-21 16:15:51,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:15:51,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050009322] [2021-12-21 16:15:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:15:51,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:15:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:15:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:15:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:15:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:15:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 16:15:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:15:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:15:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 16:15:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-21 16:15:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-21 16:15:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:15:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-21 16:15:51,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:15:51,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050009322] [2021-12-21 16:15:51,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050009322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:15:51,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:15:51,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:15:51,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657076024] [2021-12-21 16:15:51,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:15:51,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:15:51,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:15:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:15:51,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:15:51,760 INFO L87 Difference]: Start difference. First operand 6451 states and 9251 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-21 16:15:56,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:15:58,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:16:00,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:16:00,352 INFO L93 Difference]: Finished difference Result 9787 states and 14056 transitions. [2021-12-21 16:16:00,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:16:00,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 93 [2021-12-21 16:16:00,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:16:00,420 INFO L225 Difference]: With dead ends: 9787 [2021-12-21 16:16:00,421 INFO L226 Difference]: Without dead ends: 9784 [2021-12-21 16:16:00,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:16:00,428 INFO L933 BasicCegarLoop]: 2440 mSDtfsCounter, 2898 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 2766 mSolverCounterSat, 2151 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 5611 SdHoareTripleChecker+Invalid, 4918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2151 IncrementalHoareTripleChecker+Valid, 2766 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:16:00,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3045 Valid, 5611 Invalid, 4918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2151 Valid, 2766 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-12-21 16:16:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9784 states. [2021-12-21 16:16:00,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 8985. [2021-12-21 16:16:00,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8985 states, 5964 states have (on average 1.3335010060362174) internal successors, (7953), 6216 states have internal predecessors, (7953), 2357 states have call successors, (2357), 658 states have call predecessors, (2357), 663 states have return successors, (2396), 2288 states have call predecessors, (2396), 2356 states have call successors, (2396) [2021-12-21 16:16:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 12706 transitions. [2021-12-21 16:16:00,903 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 12706 transitions. Word has length 93 [2021-12-21 16:16:00,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:16:00,905 INFO L470 AbstractCegarLoop]: Abstraction has 8985 states and 12706 transitions. [2021-12-21 16:16:00,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-21 16:16:00,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 12706 transitions. [2021-12-21 16:16:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-21 16:16:00,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:16:00,918 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:16:00,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:16:00,919 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:16:00,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:16:00,920 INFO L85 PathProgramCache]: Analyzing trace with hash -321111901, now seen corresponding path program 1 times [2021-12-21 16:16:00,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:16:00,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820418994] [2021-12-21 16:16:00,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:16:00,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:16:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:16:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:16:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 16:16:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 16:16:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 16:16:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:16:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:16:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 16:16:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-21 16:16:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-21 16:16:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:16:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:16:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:16:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-21 16:16:01,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:16:01,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820418994] [2021-12-21 16:16:01,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820418994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:16:01,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:16:01,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:16:01,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445066128] [2021-12-21 16:16:01,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:16:01,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:16:01,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:16:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:16:01,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:16:01,182 INFO L87 Difference]: Start difference. First operand 8985 states and 12706 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-21 16:16:06,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:16:08,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:16:10,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []