./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 e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-e19ca92 [2021-12-22 14:41:51,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:41:51,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:41:52,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:41:52,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:41:52,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:41:52,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:41:52,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:41:52,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:41:52,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:41:52,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:41:52,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:41:52,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:41:52,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:41:52,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:41:52,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:41:52,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:41:52,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:41:52,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:41:52,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:41:52,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:41:52,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:41:52,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:41:52,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:41:52,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:41:52,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:41:52,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:41:52,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:41:52,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:41:52,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:41:52,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:41:52,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:41:52,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:41:52,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:41:52,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:41:52,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:41:52,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:41:52,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:41:52,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:41:52,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:41:52,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:41:52,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:41:52,081 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:41:52,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:41:52,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:41:52,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:41:52,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:41:52,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:41:52,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:41:52,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:41:52,084 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:41:52,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:41:52,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:41:52,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:41:52,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:41:52,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:41:52,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:41:52,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:41:52,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:41:52,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:41:52,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:41:52,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:41:52,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:41:52,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:41:52,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:41:52,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:41:52,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:41:52,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:41:52,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:41:52,087 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:41:52,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:41:52,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:41:52,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:41:52,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b84718ab53315b4fb0ea63ba4ff58d4e41800b214902f4639c5f6698ca2778b0 [2021-12-22 14:41:52,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:41:52,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:41:52,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:41:52,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:41:52,298 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:41:52,299 INFO L432 ainManager$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 [2021-12-22 14:41:52,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a51497934/356bd558d4c84b16a82563120a479582/FLAG693b024f2 [2021-12-22 14:41:52,901 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:41:52,902 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 [2021-12-22 14:41:52,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a51497934/356bd558d4c84b16a82563120a479582/FLAG693b024f2 [2021-12-22 14:41:53,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a51497934/356bd558d4c84b16a82563120a479582 [2021-12-22 14:41:53,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:41:53,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:41:53,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:41:53,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:41:53,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:41:53,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:41:53" (1/1) ... [2021-12-22 14:41:53,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d84e4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:53, skipping insertion in model container [2021-12-22 14:41:53,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:41:53" (1/1) ... [2021-12-22 14:41:53,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:41:53,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:41:53,719 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-12-22 14:41:53,719 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] [2021-12-22 14:41:53,870 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] [2021-12-22 14:41:54,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:41:54,442 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:41:54,487 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-12-22 14:41:54,489 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] [2021-12-22 14:41:54,505 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] [2021-12-22 14:41:54,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:41:54,795 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:41:54,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54 WrapperNode [2021-12-22 14:41:54,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:41:54,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:41:54,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:41:54,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:41:54,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:54,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:54,974 INFO L137 Inliner]: procedures = 276, calls = 1927, calls flagged for inlining = 125, calls inlined = 123, statements flattened = 4524 [2021-12-22 14:41:54,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:41:54,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:41:54,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:41:54,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:41:54,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:54,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:55,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:55,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:55,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:55,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:55,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:55,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:41:55,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:41:55,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:41:55,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:41:55,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (1/1) ... [2021-12-22 14:41:55,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:41:55,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:41:55,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:41:55,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:41:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_stall [2021-12-22 14:41:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_stall [2021-12-22 14:41:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_clr [2021-12-22 14:41:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_clr [2021-12-22 14:41:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_status [2021-12-22 14:41:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_status [2021-12-22 14:41:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:41:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:41:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init_setup_buff [2021-12-22 14:41:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init_setup_buff [2021-12-22 14:41:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_set [2021-12-22 14:41:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_set [2021-12-22 14:41:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:41:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:41:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-22 14:41:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-22 14:41:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-22 14:41:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-22 14:41:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 14:41:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 14:41:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:41:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:41:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-22 14:41:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-22 14:41:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_shutdown [2021-12-22 14:41:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_shutdown [2021-12-22 14:41:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_dma [2021-12-22 14:41:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_dma [2021-12-22 14:41:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_csr_busy [2021-12-22 14:41:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_csr_busy [2021-12-22 14:41:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 14:41:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 14:41:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_stop [2021-12-22 14:41:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_stop [2021-12-22 14:41:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-22 14:41:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-22 14:41:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_writel [2021-12-22 14:41:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_writel [2021-12-22 14:41:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:41:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:41:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 14:41:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 14:41:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_svc_data_out [2021-12-22 14:41:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_svc_data_out [2021-12-22 14:41:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_free_dma_chain [2021-12-22 14:41:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_free_dma_chain [2021-12-22 14:41:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:41:55,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:41:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-22 14:41:55,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-22 14:41:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_readl [2021-12-22 14:41:55,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_readl [2021-12-22 14:41:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:41:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:41:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-22 14:41:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-22 14:41:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_control [2021-12-22 14:41:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_control [2021-12-22 14:41:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-22 14:41:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-22 14:41:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_rrdy [2021-12-22 14:41:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_rrdy [2021-12-22 14:41:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_reconnect [2021-12-22 14:41:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_reconnect [2021-12-22 14:41:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:41:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_readl [2021-12-22 14:41:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_readl [2021-12-22 14:41:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:41:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:41:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_postsvc_epinters [2021-12-22 14:41:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_postsvc_epinters [2021-12-22 14:41:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-12-22 14:41:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-12-22 14:41:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:41:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 14:41:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 14:41:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-22 14:41:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-22 14:41:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_rxrequest [2021-12-22 14:41:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_rxrequest [2021-12-22 14:41:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-22 14:41:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-22 14:41:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 14:41:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 14:41:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:41:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:41:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-22 14:41:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-22 14:41:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-22 14:41:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-22 14:41:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:41:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_maxpkt [2021-12-22 14:41:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_maxpkt [2021-12-22 14:41:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:41:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:41:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:41:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_fifo_flush [2021-12-22 14:41:55,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_fifo_flush [2021-12-22 14:41:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_ep_interrupts [2021-12-22 14:41:55,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_ep_interrupts [2021-12-22 14:41:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_dma [2021-12-22 14:41:55,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_dma [2021-12-22 14:41:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_get_value [2021-12-22 14:41:55,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_get_value [2021-12-22 14:41:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 14:41:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 14:41:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:41:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:41:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_wait_ep_stall [2021-12-22 14:41:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_wait_ep_stall [2021-12-22 14:41:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:41:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:41:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:41:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_ep_interrupts [2021-12-22 14:41:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_ep_interrupts [2021-12-22 14:41:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:41:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:41:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-22 14:41:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-22 14:41:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_fifo_flush [2021-12-22 14:41:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_fifo_flush [2021-12-22 14:41:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_nak [2021-12-22 14:41:55,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_nak [2021-12-22 14:41:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:41:55,361 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:41:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:41:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure complete_req [2021-12-22 14:41:55,361 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_req [2021-12-22 14:41:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_writel [2021-12-22 14:41:55,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_writel [2021-12-22 14:41:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure empty_req_queue [2021-12-22 14:41:55,362 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_req_queue [2021-12-22 14:41:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:41:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 14:41:55,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 14:41:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_nak [2021-12-22 14:41:55,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_nak [2021-12-22 14:41:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-22 14:41:55,362 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-22 14:41:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_csr [2021-12-22 14:41:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_csr [2021-12-22 14:41:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:41:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:41:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start [2021-12-22 14:41:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start [2021-12-22 14:41:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 14:41:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 14:41:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_set [2021-12-22 14:41:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_set [2021-12-22 14:41:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_device_status [2021-12-22 14:41:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_device_status [2021-12-22 14:41:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:41:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:41:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 14:41:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 14:41:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_ddptr [2021-12-22 14:41:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_ddptr [2021-12-22 14:41:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:41:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 14:41:55,365 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 14:41:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-22 14:41:55,365 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-22 14:41:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:41:55,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:41:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_dequeue [2021-12-22 14:41:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_dequeue [2021-12-22 14:41:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_interrupts [2021-12-22 14:41:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_interrupts [2021-12-22 14:41:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_control [2021-12-22 14:41:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_control [2021-12-22 14:41:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_to_desc [2021-12-22 14:41:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_to_desc [2021-12-22 14:41:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_stall [2021-12-22 14:41:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_stall [2021-12-22 14:41:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:41:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init [2021-12-22 14:41:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init [2021-12-22 14:41:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-22 14:41:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-22 14:41:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_next_txrequest [2021-12-22 14:41:55,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_next_txrequest [2021-12-22 14:41:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:41:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-22 14:41:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-22 14:41:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_probe [2021-12-22 14:41:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_probe [2021-12-22 14:41:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 14:41:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 14:41:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:41:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 14:41:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 14:41:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:41:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:41:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_ep_interrupts [2021-12-22 14:41:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_ep_interrupts [2021-12-22 14:41:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-22 14:41:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-22 14:41:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_status [2021-12-22 14:41:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_status [2021-12-22 14:41:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_free_request [2021-12-22 14:41:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_free_request [2021-12-22 14:41:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_ep_enable [2021-12-22 14:41:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_ep_enable [2021-12-22 14:41:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_csr [2021-12-22 14:41:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_csr [2021-12-22 14:41:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-22 14:41:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-22 14:41:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_complete_transfer [2021-12-22 14:41:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_complete_transfer [2021-12-22 14:41:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_remove [2021-12-22 14:41:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_remove [2021-12-22 14:41:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 14:41:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 14:41:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_work_fall [2021-12-22 14:41:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_work_fall [2021-12-22 14:41:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 14:41:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 14:41:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2021-12-22 14:41:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2021-12-22 14:41:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_clr [2021-12-22 14:41:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_clr [2021-12-22 14:41:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:41:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:41:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:41:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:41:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_disconnect [2021-12-22 14:41:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_disconnect [2021-12-22 14:41:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:41:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_bufsz [2021-12-22 14:41:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_bufsz [2021-12-22 14:41:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:41:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:41:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_interrupts [2021-12-22 14:41:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_interrupts [2021-12-22 14:41:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-22 14:41:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-22 14:41:55,888 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:41:55,891 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:41:56,110 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:42:00,344 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:42:00,356 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:42:00,356 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-22 14:42:00,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:00 BoogieIcfgContainer [2021-12-22 14:42:00,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:42:00,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:42:00,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:42:00,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:42:00,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:41:53" (1/3) ... [2021-12-22 14:42:00,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e7effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:00, skipping insertion in model container [2021-12-22 14:42:00,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:54" (2/3) ... [2021-12-22 14:42:00,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e7effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:00, skipping insertion in model container [2021-12-22 14:42:00,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:00" (3/3) ... [2021-12-22 14:42:00,364 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 [2021-12-22 14:42:00,367 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:42:00,367 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:42:00,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:42:00,404 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:42:00,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:42:00,436 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) [2021-12-22 14:42:00,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-22 14:42:00,442 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:00,443 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] [2021-12-22 14:42:00,443 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:00,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:00,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1740150991, now seen corresponding path program 1 times [2021-12-22 14:42:00,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:00,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351895116] [2021-12-22 14:42:00,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:00,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:00,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:42:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:00,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:42:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:00,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:42:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-22 14:42:00,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:00,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351895116] [2021-12-22 14:42:00,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351895116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:00,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:00,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:42:00,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578708533] [2021-12-22 14:42:00,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:00,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:42:00,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:00,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:42:00,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:42:00,965 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) [2021-12-22 14:42:04,845 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 [] [2021-12-22 14:42:06,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:12,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:14,290 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 [] [2021-12-22 14:42:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:16,027 INFO L93 Difference]: Finished difference Result 5435 states and 8077 transitions. [2021-12-22 14:42:16,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:42:16,029 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 [2021-12-22 14:42:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:16,070 INFO L225 Difference]: With dead ends: 5435 [2021-12-22 14:42:16,071 INFO L226 Difference]: Without dead ends: 3602 [2021-12-22 14:42:16,090 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 [2021-12-22 14:42:16,095 INFO L933 BasicCegarLoop]: 2689 mSDtfsCounter, 3985 mSDsluCounter, 3382 mSDsCounter, 0 mSdLazyCounter, 3328 mSolverCounterSat, 2913 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4300 SdHoareTripleChecker+Valid, 6071 SdHoareTripleChecker+Invalid, 6245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2913 IncrementalHoareTripleChecker+Valid, 3328 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:16,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4300 Valid, 6071 Invalid, 6245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2913 Valid, 3328 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2021-12-22 14:42:16,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2021-12-22 14:42:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3299. [2021-12-22 14:42:16,313 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) [2021-12-22 14:42:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4735 transitions. [2021-12-22 14:42:16,335 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4735 transitions. Word has length 48 [2021-12-22 14:42:16,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:16,337 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4735 transitions. [2021-12-22 14:42:16,337 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) [2021-12-22 14:42:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4735 transitions. [2021-12-22 14:42:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-22 14:42:16,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:16,345 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] [2021-12-22 14:42:16,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:42:16,345 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:16,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:16,346 INFO L85 PathProgramCache]: Analyzing trace with hash -701291158, now seen corresponding path program 1 times [2021-12-22 14:42:16,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:16,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427062865] [2021-12-22 14:42:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:16,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:16,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:42:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:16,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:42:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:42:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-22 14:42:16,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:16,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427062865] [2021-12-22 14:42:16,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427062865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:16,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:16,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:42:16,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093331590] [2021-12-22 14:42:16,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:16,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:42:16,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:16,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:42:16,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:42:16,526 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) [2021-12-22 14:42:21,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:23,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:27,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:28,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:28,444 INFO L93 Difference]: Finished difference Result 10340 states and 14993 transitions. [2021-12-22 14:42:28,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:42:28,445 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 [2021-12-22 14:42:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:28,478 INFO L225 Difference]: With dead ends: 10340 [2021-12-22 14:42:28,478 INFO L226 Difference]: Without dead ends: 7054 [2021-12-22 14:42:28,492 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 [2021-12-22 14:42:28,493 INFO L933 BasicCegarLoop]: 3195 mSDtfsCounter, 3981 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 2731 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 6987 SdHoareTripleChecker+Invalid, 6347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2731 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:28,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4328 Valid, 6987 Invalid, 6347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2731 Valid, 3614 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2021-12-22 14:42:28,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2021-12-22 14:42:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 6451. [2021-12-22 14:42:28,661 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) [2021-12-22 14:42:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 9251 transitions. [2021-12-22 14:42:28,687 INFO L78 Accepts]: Start accepts. Automaton has 6451 states and 9251 transitions. Word has length 50 [2021-12-22 14:42:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:28,688 INFO L470 AbstractCegarLoop]: Abstraction has 6451 states and 9251 transitions. [2021-12-22 14:42:28,689 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) [2021-12-22 14:42:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6451 states and 9251 transitions. [2021-12-22 14:42:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 14:42:28,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:28,695 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] [2021-12-22 14:42:28,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:42:28,695 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:28,696 INFO L85 PathProgramCache]: Analyzing trace with hash -782389508, now seen corresponding path program 1 times [2021-12-22 14:42:28,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:28,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334590168] [2021-12-22 14:42:28,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:28,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:42:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:42:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:42:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:42:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:42:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 14:42:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:28,958 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-22 14:42:28,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:28,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334590168] [2021-12-22 14:42:28,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334590168] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:28,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:28,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:42:28,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145507201] [2021-12-22 14:42:28,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:28,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:42:28,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:28,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:42:28,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:42:28,962 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) [2021-12-22 14:42:35,451 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 [] [2021-12-22 14:42:37,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:37,161 INFO L93 Difference]: Finished difference Result 9787 states and 14056 transitions. [2021-12-22 14:42:37,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:42:37,162 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 [2021-12-22 14:42:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:37,215 INFO L225 Difference]: With dead ends: 9787 [2021-12-22 14:42:37,216 INFO L226 Difference]: Without dead ends: 9784 [2021-12-22 14:42:37,224 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 [2021-12-22 14:42:37,225 INFO L933 BasicCegarLoop]: 2441 mSDtfsCounter, 2898 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 2768 mSolverCounterSat, 2151 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 4920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2151 IncrementalHoareTripleChecker+Valid, 2768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:37,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3045 Valid, 5613 Invalid, 4920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2151 Valid, 2768 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-12-22 14:42:37,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9784 states. [2021-12-22 14:42:37,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 8985. [2021-12-22 14:42:37,578 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) [2021-12-22 14:42:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 12706 transitions. [2021-12-22 14:42:37,609 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 12706 transitions. Word has length 93 [2021-12-22 14:42:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:37,610 INFO L470 AbstractCegarLoop]: Abstraction has 8985 states and 12706 transitions. [2021-12-22 14:42:37,610 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) [2021-12-22 14:42:37,611 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 12706 transitions. [2021-12-22 14:42:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-22 14:42:37,620 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:37,620 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] [2021-12-22 14:42:37,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:42:37,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:37,621 INFO L85 PathProgramCache]: Analyzing trace with hash -321111901, now seen corresponding path program 1 times [2021-12-22 14:42:37,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:37,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585875824] [2021-12-22 14:42:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:37,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:42:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:42:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:42:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:42:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:42:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 14:42:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:42:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-22 14:42:37,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:37,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585875824] [2021-12-22 14:42:37,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585875824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:37,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:37,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:42:37,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809178354] [2021-12-22 14:42:37,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:37,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:42:37,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:37,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:42:37,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:42:37,819 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) [2021-12-22 14:42:42,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:44,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:46,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:47,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:47,969 INFO L93 Difference]: Finished difference Result 18824 states and 26850 transitions. [2021-12-22 14:42:47,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 14:42:47,970 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 [2021-12-22 14:42:47,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:48,015 INFO L225 Difference]: With dead ends: 18824 [2021-12-22 14:42:48,016 INFO L226 Difference]: Without dead ends: 9852 [2021-12-22 14:42:48,049 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 [2021-12-22 14:42:48,050 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 2019 mSDsluCounter, 3491 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 2029 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 5661 SdHoareTripleChecker+Invalid, 5440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2029 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:48,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2145 Valid, 5661 Invalid, 5440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2029 Valid, 3409 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-12-22 14:42:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9852 states. [2021-12-22 14:42:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9852 to 8997. [2021-12-22 14:42:48,274 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) [2021-12-22 14:42:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 12720 transitions. [2021-12-22 14:42:48,380 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 12720 transitions. Word has length 113 [2021-12-22 14:42:48,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:48,380 INFO L470 AbstractCegarLoop]: Abstraction has 8997 states and 12720 transitions. [2021-12-22 14:42:48,380 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) [2021-12-22 14:42:48,381 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 12720 transitions. [2021-12-22 14:42:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-22 14:42:48,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:48,391 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] [2021-12-22 14:42:48,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:42:48,391 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:48,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1602116133, now seen corresponding path program 1 times [2021-12-22 14:42:48,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:48,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111801166] [2021-12-22 14:42:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:48,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:42:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:42:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:42:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:42:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:42:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 14:42:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:42:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-22 14:42:48,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:48,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111801166] [2021-12-22 14:42:48,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111801166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:48,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:48,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:42:48,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128462846] [2021-12-22 14:42:48,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:48,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:42:48,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:48,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:42:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:42:48,565 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) [2021-12-22 14:42:53,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:55,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:57,809 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 [] [2021-12-22 14:42:59,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:59,129 INFO L93 Difference]: Finished difference Result 18840 states and 26868 transitions. [2021-12-22 14:42:59,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 14:42:59,130 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 [2021-12-22 14:42:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:59,174 INFO L225 Difference]: With dead ends: 18840 [2021-12-22 14:42:59,175 INFO L226 Difference]: Without dead ends: 9856 [2021-12-22 14:42:59,206 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 [2021-12-22 14:42:59,207 INFO L933 BasicCegarLoop]: 2171 mSDtfsCounter, 2019 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 3410 mSolverCounterSat, 2029 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 5442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2029 IncrementalHoareTripleChecker+Valid, 3410 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:59,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2145 Valid, 5664 Invalid, 5442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2029 Valid, 3410 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2021-12-22 14:42:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9856 states. [2021-12-22 14:42:59,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9856 to 9001. [2021-12-22 14:42:59,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9001 states, 5978 states have (on average 1.3327199732351958) internal successors, (7967), 6232 states have internal predecessors, (7967), 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) [2021-12-22 14:42:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9001 states to 9001 states and 12724 transitions. [2021-12-22 14:42:59,518 INFO L78 Accepts]: Start accepts. Automaton has 9001 states and 12724 transitions. Word has length 113 [2021-12-22 14:42:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:59,520 INFO L470 AbstractCegarLoop]: Abstraction has 9001 states and 12724 transitions. [2021-12-22 14:42:59,520 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) [2021-12-22 14:42:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 9001 states and 12724 transitions. [2021-12-22 14:42:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-22 14:42:59,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:59,529 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] [2021-12-22 14:42:59,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:42:59,529 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:59,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:59,529 INFO L85 PathProgramCache]: Analyzing trace with hash 13768231, now seen corresponding path program 1 times [2021-12-22 14:42:59,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:59,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132631614] [2021-12-22 14:42:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:59,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:42:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:42:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:42:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:42:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:42:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 14:42:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:42:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-22 14:42:59,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:59,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132631614] [2021-12-22 14:42:59,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132631614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:59,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:59,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:42:59,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026563887] [2021-12-22 14:42:59,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:59,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:42:59,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:59,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:42:59,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:42:59,702 INFO L87 Difference]: Start difference. First operand 9001 states and 12724 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), 1 states have call predecessors, (12), 1 states have call successors, (12)