./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 ae007674 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-ae00767 [2021-12-28 04:00:03,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:00:03,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:00:03,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:00:03,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:00:03,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:00:03,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:00:03,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:00:03,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:00:03,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:00:03,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:00:03,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:00:03,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:00:03,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:00:03,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:00:03,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:00:03,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:00:03,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:00:03,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:00:03,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:00:03,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:00:03,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:00:03,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:00:03,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:00:03,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:00:03,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:00:03,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:00:03,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:00:03,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:00:03,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:00:03,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:00:03,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:00:03,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:00:03,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:00:03,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:00:03,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:00:03,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:00:03,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:00:03,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:00:03,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:00:03,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:00:03,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:00:03,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:00:03,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:00:03,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:00:03,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:00:03,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:00:03,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:00:03,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:00:03,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:00:03,859 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:00:03,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:00:03,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:00:03,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:00:03,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:00:03,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:00:03,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:00:03,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:00:03,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:00:03,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:00:03,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:00:03,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:00:03,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:00:03,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:00:03,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:00:03,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:00:03,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:00:03,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:00:03,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:00:03,862 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:00:03,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:00:03,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:00:03,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b84718ab53315b4fb0ea63ba4ff58d4e41800b214902f4639c5f6698ca2778b0 [2021-12-28 04:00:04,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:00:04,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:00:04,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:00:04,127 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:00:04,127 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:00:04,129 INFO L432 ainManager$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 [2021-12-28 04:00:04,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5c9c9b0/d0d2056898a042799d431eb34ea4f8db/FLAG9d20cf12a [2021-12-28 04:00:04,760 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:00:04,761 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 [2021-12-28 04:00:04,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5c9c9b0/d0d2056898a042799d431eb34ea4f8db/FLAG9d20cf12a [2021-12-28 04:00:05,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5c9c9b0/d0d2056898a042799d431eb34ea4f8db [2021-12-28 04:00:05,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:00:05,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:00:05,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:00:05,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:00:05,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:00:05,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:00:05" (1/1) ... [2021-12-28 04:00:05,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbb05d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:05, skipping insertion in model container [2021-12-28 04:00:05,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:00:05" (1/1) ... [2021-12-28 04:00:05,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:00:05,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:00:05,459 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-12-28 04:00:05,460 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] [2021-12-28 04:00:05,638 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] [2021-12-28 04:00:06,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:00:06,475 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:00:06,516 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-12-28 04:00:06,517 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] [2021-12-28 04:00:06,531 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] [2021-12-28 04:00:06,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:00:06,832 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:00:06,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06 WrapperNode [2021-12-28 04:00:06,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:00:06,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:00:06,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:00:06,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:00:06,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:06,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,063 INFO L137 Inliner]: procedures = 276, calls = 1927, calls flagged for inlining = 125, calls inlined = 123, statements flattened = 4524 [2021-12-28 04:00:07,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:00:07,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:00:07,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:00:07,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:00:07,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:00:07,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:00:07,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:00:07,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:00:07,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (1/1) ... [2021-12-28 04:00:07,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:00:07,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:00:07,280 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) [2021-12-28 04:00:07,286 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 [2021-12-28 04:00:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_stall [2021-12-28 04:00:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_stall [2021-12-28 04:00:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_clr [2021-12-28 04:00:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_clr [2021-12-28 04:00:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_status [2021-12-28 04:00:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_status [2021-12-28 04:00:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:00:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:00:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init_setup_buff [2021-12-28 04:00:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init_setup_buff [2021-12-28 04:00:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_set [2021-12-28 04:00:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_set [2021-12-28 04:00:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:00:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:00:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-28 04:00:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-28 04:00:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-28 04:00:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-28 04:00:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:00:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:00:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:00:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:00:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-28 04:00:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-28 04:00:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_shutdown [2021-12-28 04:00:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_shutdown [2021-12-28 04:00:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_dma [2021-12-28 04:00:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_dma [2021-12-28 04:00:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_csr_busy [2021-12-28 04:00:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_csr_busy [2021-12-28 04:00:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 04:00:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 04:00:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_stop [2021-12-28 04:00:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_stop [2021-12-28 04:00:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-28 04:00:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-28 04:00:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_writel [2021-12-28 04:00:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_writel [2021-12-28 04:00:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:00:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:00:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:00:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:00:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_svc_data_out [2021-12-28 04:00:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_svc_data_out [2021-12-28 04:00:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_free_dma_chain [2021-12-28 04:00:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_free_dma_chain [2021-12-28 04:00:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:00:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:00:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-28 04:00:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-28 04:00:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_readl [2021-12-28 04:00:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_readl [2021-12-28 04:00:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:00:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:00:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-28 04:00:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-28 04:00:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_control [2021-12-28 04:00:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_control [2021-12-28 04:00:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-28 04:00:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-28 04:00:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_rrdy [2021-12-28 04:00:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_rrdy [2021-12-28 04:00:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_reconnect [2021-12-28 04:00:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_reconnect [2021-12-28 04:00:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:00:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_readl [2021-12-28 04:00:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_readl [2021-12-28 04:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:00:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_postsvc_epinters [2021-12-28 04:00:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_postsvc_epinters [2021-12-28 04:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-12-28 04:00:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-12-28 04:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 04:00:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 04:00:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-28 04:00:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-28 04:00:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_rxrequest [2021-12-28 04:00:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_rxrequest [2021-12-28 04:00:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-28 04:00:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-28 04:00:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:00:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:00:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:00:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:00:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-28 04:00:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-28 04:00:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-28 04:00:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-28 04:00:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:00:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_maxpkt [2021-12-28 04:00:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_maxpkt [2021-12-28 04:00:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:00:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:00:07,377 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:00:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_fifo_flush [2021-12-28 04:00:07,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_fifo_flush [2021-12-28 04:00:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_ep_interrupts [2021-12-28 04:00:07,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_ep_interrupts [2021-12-28 04:00:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_dma [2021-12-28 04:00:07,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_dma [2021-12-28 04:00:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_get_value [2021-12-28 04:00:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_get_value [2021-12-28 04:00:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-28 04:00:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-28 04:00:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:00:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:00:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_wait_ep_stall [2021-12-28 04:00:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_wait_ep_stall [2021-12-28 04:00:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:00:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:00:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:00:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_ep_interrupts [2021-12-28 04:00:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_ep_interrupts [2021-12-28 04:00:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:00:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:00:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-28 04:00:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-28 04:00:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_fifo_flush [2021-12-28 04:00:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_fifo_flush [2021-12-28 04:00:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_nak [2021-12-28 04:00:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_nak [2021-12-28 04:00:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-28 04:00:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-28 04:00:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:00:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure complete_req [2021-12-28 04:00:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_req [2021-12-28 04:00:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_writel [2021-12-28 04:00:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_writel [2021-12-28 04:00:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure empty_req_queue [2021-12-28 04:00:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_req_queue [2021-12-28 04:00:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:00:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:00:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:00:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_nak [2021-12-28 04:00:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_nak [2021-12-28 04:00:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-28 04:00:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-28 04:00:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_csr [2021-12-28 04:00:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_csr [2021-12-28 04:00:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:00:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:00:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start [2021-12-28 04:00:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start [2021-12-28 04:00:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:00:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:00:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_set [2021-12-28 04:00:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_set [2021-12-28 04:00:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_device_status [2021-12-28 04:00:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_device_status [2021-12-28 04:00:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:00:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:00:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 04:00:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 04:00:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_ddptr [2021-12-28 04:00:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_ddptr [2021-12-28 04:00:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:00:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:00:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:00:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-28 04:00:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-28 04:00:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:00:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:00:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_dequeue [2021-12-28 04:00:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_dequeue [2021-12-28 04:00:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_interrupts [2021-12-28 04:00:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_interrupts [2021-12-28 04:00:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_control [2021-12-28 04:00:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_control [2021-12-28 04:00:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_to_desc [2021-12-28 04:00:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_to_desc [2021-12-28 04:00:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_stall [2021-12-28 04:00:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_stall [2021-12-28 04:00:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:00:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init [2021-12-28 04:00:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init [2021-12-28 04:00:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-28 04:00:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-28 04:00:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_next_txrequest [2021-12-28 04:00:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_next_txrequest [2021-12-28 04:00:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:00:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-28 04:00:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-28 04:00:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_probe [2021-12-28 04:00:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_probe [2021-12-28 04:00:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:00:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:00:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:00:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:00:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:00:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:00:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:00:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_ep_interrupts [2021-12-28 04:00:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_ep_interrupts [2021-12-28 04:00:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-28 04:00:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-28 04:00:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_status [2021-12-28 04:00:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_status [2021-12-28 04:00:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_free_request [2021-12-28 04:00:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_free_request [2021-12-28 04:00:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_ep_enable [2021-12-28 04:00:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_ep_enable [2021-12-28 04:00:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_csr [2021-12-28 04:00:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_csr [2021-12-28 04:00:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-28 04:00:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-28 04:00:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_complete_transfer [2021-12-28 04:00:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_complete_transfer [2021-12-28 04:00:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_remove [2021-12-28 04:00:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_remove [2021-12-28 04:00:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-28 04:00:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-28 04:00:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_work_fall [2021-12-28 04:00:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_work_fall [2021-12-28 04:00:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-28 04:00:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-28 04:00:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2021-12-28 04:00:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2021-12-28 04:00:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_clr [2021-12-28 04:00:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_clr [2021-12-28 04:00:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:00:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:00:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:00:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:00:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_disconnect [2021-12-28 04:00:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_disconnect [2021-12-28 04:00:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:00:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_bufsz [2021-12-28 04:00:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_bufsz [2021-12-28 04:00:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:00:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:00:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_interrupts [2021-12-28 04:00:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_interrupts [2021-12-28 04:00:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-28 04:00:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-28 04:00:07,921 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:00:07,925 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:00:08,105 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:00:12,329 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:00:12,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:00:12,343 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-28 04:00:12,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:00:12 BoogieIcfgContainer [2021-12-28 04:00:12,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:00:12,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:00:12,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:00:12,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:00:12,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:00:05" (1/3) ... [2021-12-28 04:00:12,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7fbda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:00:12, skipping insertion in model container [2021-12-28 04:00:12,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:00:06" (2/3) ... [2021-12-28 04:00:12,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7fbda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:00:12, skipping insertion in model container [2021-12-28 04:00:12,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:00:12" (3/3) ... [2021-12-28 04:00:12,366 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 [2021-12-28 04:00:12,370 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:00:12,371 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:00:12,409 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:00:12,414 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 [2021-12-28 04:00:12,414 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:00:12,452 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) [2021-12-28 04:00:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-28 04:00:12,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:00:12,476 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] [2021-12-28 04:00:12,476 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:00:12,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:00:12,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1740150991, now seen corresponding path program 1 times [2021-12-28 04:00:12,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:00:12,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40094726] [2021-12-28 04:00:12,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:00:12,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:00:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:00:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:12,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:00:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 04:00:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:00:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 04:00:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-28 04:00:12,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:00:12,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40094726] [2021-12-28 04:00:12,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40094726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:00:12,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:00:12,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:00:12,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574785224] [2021-12-28 04:00:12,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:00:12,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:00:12,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:00:12,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:00:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:00:12,929 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) [2021-12-28 04:00:16,532 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 [] [2021-12-28 04:00:18,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:00:24,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:00:26,442 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 [] [2021-12-28 04:00:28,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:00:28,615 INFO L93 Difference]: Finished difference Result 5435 states and 8077 transitions. [2021-12-28 04:00:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:00:28,618 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 [2021-12-28 04:00:28,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:00:28,662 INFO L225 Difference]: With dead ends: 5435 [2021-12-28 04:00:28,662 INFO L226 Difference]: Without dead ends: 3602 [2021-12-28 04:00:28,689 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 [2021-12-28 04:00:28,693 INFO L933 BasicCegarLoop]: 2688 mSDtfsCounter, 3985 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 3760 mSolverCounterSat, 2912 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4301 SdHoareTripleChecker+Valid, 5636 SdHoareTripleChecker+Invalid, 6676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2912 IncrementalHoareTripleChecker+Valid, 3760 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:00:28,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4301 Valid, 5636 Invalid, 6676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2912 Valid, 3760 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2021-12-28 04:00:28,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2021-12-28 04:00:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3299. [2021-12-28 04:00:28,963 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) [2021-12-28 04:00:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4735 transitions. [2021-12-28 04:00:28,986 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4735 transitions. Word has length 48 [2021-12-28 04:00:28,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:00:28,987 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4735 transitions. [2021-12-28 04:00:28,987 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) [2021-12-28 04:00:28,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4735 transitions. [2021-12-28 04:00:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-28 04:00:28,996 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:00:28,996 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] [2021-12-28 04:00:28,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:00:28,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:00:28,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:00:28,997 INFO L85 PathProgramCache]: Analyzing trace with hash -701291158, now seen corresponding path program 1 times [2021-12-28 04:00:28,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:00:28,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091237319] [2021-12-28 04:00:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:00:28,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:00:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:00:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:29,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:00:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 04:00:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:29,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:00:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 04:00:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-28 04:00:29,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:00:29,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091237319] [2021-12-28 04:00:29,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091237319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:00:29,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:00:29,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:00:29,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113385744] [2021-12-28 04:00:29,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:00:29,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:00:29,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:00:29,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:00:29,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:00:29,176 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) [2021-12-28 04:00:35,164 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 [] [2021-12-28 04:00:37,183 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 [] [2021-12-28 04:00:40,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:00:40,871 INFO L93 Difference]: Finished difference Result 10340 states and 14993 transitions. [2021-12-28 04:00:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:00:40,871 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 [2021-12-28 04:00:40,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:00:40,934 INFO L225 Difference]: With dead ends: 10340 [2021-12-28 04:00:40,935 INFO L226 Difference]: Without dead ends: 7054 [2021-12-28 04:00:40,951 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 [2021-12-28 04:00:40,952 INFO L933 BasicCegarLoop]: 3189 mSDtfsCounter, 3981 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 4037 mSolverCounterSat, 2731 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4329 SdHoareTripleChecker+Valid, 6541 SdHoareTripleChecker+Invalid, 6770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2731 IncrementalHoareTripleChecker+Valid, 4037 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:00:40,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4329 Valid, 6541 Invalid, 6770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2731 Valid, 4037 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2021-12-28 04:00:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2021-12-28 04:00:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 6451. [2021-12-28 04:00:41,157 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) [2021-12-28 04:00:41,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 9251 transitions. [2021-12-28 04:00:41,228 INFO L78 Accepts]: Start accepts. Automaton has 6451 states and 9251 transitions. Word has length 50 [2021-12-28 04:00:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:00:41,229 INFO L470 AbstractCegarLoop]: Abstraction has 6451 states and 9251 transitions. [2021-12-28 04:00:41,229 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) [2021-12-28 04:00:41,229 INFO L276 IsEmpty]: Start isEmpty. Operand 6451 states and 9251 transitions. [2021-12-28 04:00:41,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-28 04:00:41,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:00:41,236 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] [2021-12-28 04:00:41,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:00:41,237 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:00:41,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:00:41,238 INFO L85 PathProgramCache]: Analyzing trace with hash -782389508, now seen corresponding path program 1 times [2021-12-28 04:00:41,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:00:41,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069991211] [2021-12-28 04:00:41,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:00:41,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:00:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:00:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:00:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 04:00:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:00:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 04:00:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 04:00:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:00:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 04:00:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 04:00:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 04:00:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-28 04:00:41,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:00:41,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069991211] [2021-12-28 04:00:41,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069991211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:00:41,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:00:41,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:00:41,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772488022] [2021-12-28 04:00:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:00:41,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:00:41,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:00:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:00:41,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:00:41,519 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) [2021-12-28 04:00:46,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:00:48,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:00:49,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:00:49,969 INFO L93 Difference]: Finished difference Result 9787 states and 14056 transitions. [2021-12-28 04:00:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:00:49,971 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 [2021-12-28 04:00:49,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:00:50,029 INFO L225 Difference]: With dead ends: 9787 [2021-12-28 04:00:50,029 INFO L226 Difference]: Without dead ends: 9784 [2021-12-28 04:00:50,038 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 [2021-12-28 04:00:50,039 INFO L933 BasicCegarLoop]: 2438 mSDtfsCounter, 2898 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 2151 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 5199 SdHoareTripleChecker+Invalid, 5323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2151 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:00:50,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3046 Valid, 5199 Invalid, 5323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2151 Valid, 3171 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-12-28 04:00:50,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9784 states. [2021-12-28 04:00:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 8985. [2021-12-28 04:00:50,315 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) [2021-12-28 04:00:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 12706 transitions. [2021-12-28 04:00:50,349 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 12706 transitions. Word has length 93 [2021-12-28 04:00:50,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:00:50,350 INFO L470 AbstractCegarLoop]: Abstraction has 8985 states and 12706 transitions. [2021-12-28 04:00:50,350 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) [2021-12-28 04:00:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 12706 transitions. [2021-12-28 04:00:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 04:00:50,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:00:50,367 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] [2021-12-28 04:00:50,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:00:50,368 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:00:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:00:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash -321111901, now seen corresponding path program 1 times [2021-12-28 04:00:50,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:00:50,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716775946] [2021-12-28 04:00:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:00:50,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:00:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:00:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:00:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 04:00:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:00:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 04:00:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 04:00:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:00:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 04:00:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 04:00:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 04:00:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 04:00:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:00:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:00:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-28 04:00:50,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:00:50,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716775946] [2021-12-28 04:00:50,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716775946] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:00:50,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:00:50,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:00:50,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264446972] [2021-12-28 04:00:50,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:00:50,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:00:50,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:00:50,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:00:50,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:00:50,573 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) [2021-12-28 04:00:56,033 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 [] [2021-12-28 04:00:57,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:01:00,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:01:01,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:01:01,736 INFO L93 Difference]: Finished difference Result 18824 states and 26850 transitions. [2021-12-28 04:01:01,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 04:01:01,736 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 113 [2021-12-28 04:01:01,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:01:01,791 INFO L225 Difference]: With dead ends: 18824 [2021-12-28 04:01:01,791 INFO L226 Difference]: Without dead ends: 9852 [2021-12-28 04:01:01,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:01:01,833 INFO L933 BasicCegarLoop]: 2172 mSDtfsCounter, 2019 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 3900 mSolverCounterSat, 2029 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 5176 SdHoareTripleChecker+Invalid, 5931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2029 IncrementalHoareTripleChecker+Valid, 3900 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:01:01,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2147 Valid, 5176 Invalid, 5931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2029 Valid, 3900 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2021-12-28 04:01:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9852 states. [2021-12-28 04:01:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9852 to 8997. [2021-12-28 04:01:02,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8997 states, 5974 states have (on average 1.3329427519250083) internal successors, (7963), 6228 states have internal predecessors, (7963), 2357 states have call successors, (2357), 658 states have call predecessors, (2357), 665 states have return successors, (2400), 2288 states have call predecessors, (2400), 2356 states have call successors, (2400) [2021-12-28 04:01:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 12720 transitions. [2021-12-28 04:01:02,196 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 12720 transitions. Word has length 113 [2021-12-28 04:01:02,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:01:02,197 INFO L470 AbstractCegarLoop]: Abstraction has 8997 states and 12720 transitions. [2021-12-28 04:01:02,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-12-28 04:01:02,198 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 12720 transitions. [2021-12-28 04:01:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 04:01:02,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:01:02,208 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] [2021-12-28 04:01:02,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:01:02,208 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:01:02,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:01:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1602116133, now seen corresponding path program 1 times [2021-12-28 04:01:02,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:01:02,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398948887] [2021-12-28 04:01:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:01:02,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:01:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:01:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:01:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 04:01:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:01:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 04:01:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 04:01:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:01:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 04:01:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 04:01:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 04:01:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 04:01:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:01:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:01:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-28 04:01:02,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:01:02,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398948887] [2021-12-28 04:01:02,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398948887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:01:02,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:01:02,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:01:02,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87362918] [2021-12-28 04:01:02,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:01:02,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:01:02,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:01:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:01:02,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:01:02,409 INFO L87 Difference]: Start difference. First operand 8997 states and 12720 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) [2021-12-28 04:01:07,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:01:09,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []