./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.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 fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:54:23,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:54:23,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:54:24,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:54:24,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:54:24,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:54:24,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:54:24,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:54:24,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:54:24,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:54:24,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:54:24,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:54:24,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:54:24,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:54:24,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:54:24,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:54:24,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:54:24,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:54:24,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:54:24,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:54:24,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:54:24,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:54:24,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:54:24,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:54:24,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:54:24,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:54:24,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:54:24,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:54:24,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:54:24,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:54:24,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:54:24,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:54:24,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:54:24,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:54:24,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:54:24,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:54:24,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:54:24,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:54:24,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:54:24,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:54:24,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:54:24,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:54:24,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:54:24,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:54:24,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:54:24,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:54:24,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:54:24,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:54:24,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:54:24,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:54:24,120 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:54:24,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:54:24,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:54:24,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:54:24,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:54:24,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:54:24,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:54:24,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:54:24,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:54:24,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:54:24,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:54:24,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:54:24,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:54:24,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:54:24,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:54:24,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:54:24,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:54:24,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:54:24,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:54:24,126 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:54:24,126 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:54:24,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:54:24,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:54:24,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2021-12-14 17:54:24,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:54:24,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:54:24,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:54:24,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:54:24,364 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:54:24,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2021-12-14 17:54:24,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718d41716/0433b87f43c4411faf52892d69428929/FLAGe74ca2c0e [2021-12-14 17:54:25,069 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:54:25,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2021-12-14 17:54:25,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718d41716/0433b87f43c4411faf52892d69428929/FLAGe74ca2c0e [2021-12-14 17:54:25,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718d41716/0433b87f43c4411faf52892d69428929 [2021-12-14 17:54:25,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:54:25,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:54:25,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:54:25,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:54:25,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:54:25,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:54:25" (1/1) ... [2021-12-14 17:54:25,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e37732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:25, skipping insertion in model container [2021-12-14 17:54:25,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:54:25" (1/1) ... [2021-12-14 17:54:25,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:54:25,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:54:25,750 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-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2021-12-14 17:54:27,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:54:27,102 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:54:27,162 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-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2021-12-14 17:54:27,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:54:27,596 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:54:27,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27 WrapperNode [2021-12-14 17:54:27,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:54:27,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:54:27,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:54:27,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:54:27,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:27,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:27,935 INFO L137 Inliner]: procedures = 414, calls = 5134, calls flagged for inlining = 149, calls inlined = 134, statements flattened = 10048 [2021-12-14 17:54:27,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:54:27,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:54:27,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:54:27,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:54:27,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:27,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:28,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:28,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:28,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:28,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:28,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:28,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:54:28,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:54:28,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:54:28,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:54:28,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (1/1) ... [2021-12-14 17:54:28,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:54:28,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:54:28,396 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) [2021-12-14 17:54:28,416 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 [2021-12-14 17:54:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2021-12-14 17:54:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2021-12-14 17:54:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure poll_def_tmr [2021-12-14 17:54:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_def_tmr [2021-12-14 17:54:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2021-12-14 17:54:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2021-12-14 17:54:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_channels [2021-12-14 17:54:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_channels [2021-12-14 17:54:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 17:54:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 17:54:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:54:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:54:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2021-12-14 17:54:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2021-12-14 17:54:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~int [2021-12-14 17:54:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~int [2021-12-14 17:54:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure seq_input_event [2021-12-14 17:54:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_input_event [2021-12-14 17:54:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2021-12-14 17:54:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2021-12-14 17:54:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2021-12-14 17:54:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2021-12-14 17:54:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2021-12-14 17:54:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2021-12-14 17:54:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-12-14 17:54:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2021-12-14 17:54:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2021-12-14 17:54:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:54:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:54:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2021-12-14 17:54:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2021-12-14 17:54:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-12-14 17:54:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-12-14 17:54:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2021-12-14 17:54:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2021-12-14 17:54:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 17:54:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 17:54:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2021-12-14 17:54:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2021-12-14 17:54:28,443 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:54:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:54:28,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:54:28,443 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2021-12-14 17:54:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2021-12-14 17:54:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2021-12-14 17:54:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2021-12-14 17:54:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2021-12-14 17:54:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2021-12-14 17:54:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2021-12-14 17:54:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2021-12-14 17:54:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:54:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:54:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-12-14 17:54:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-12-14 17:54:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:54:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:54:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:54:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2021-12-14 17:54:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2021-12-14 17:54:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:54:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure midi_poll [2021-12-14 17:54:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_poll [2021-12-14 17:54:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2021-12-14 17:54:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2021-12-14 17:54:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2021-12-14 17:54:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2021-12-14 17:54:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:54:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2021-12-14 17:54:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2021-12-14 17:54:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 17:54:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 17:54:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-14 17:54:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-14 17:54:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:54:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:54:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2021-12-14 17:54:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2021-12-14 17:54:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2021-12-14 17:54:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2021-12-14 17:54:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2021-12-14 17:54:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2021-12-14 17:54:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2021-12-14 17:54:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2021-12-14 17:54:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2021-12-14 17:54:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2021-12-14 17:54:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-12-14 17:54:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-14 17:54:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-14 17:54:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 17:54:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 17:54:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2021-12-14 17:54:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2021-12-14 17:54:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2021-12-14 17:54:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2021-12-14 17:54:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2021-12-14 17:54:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2021-12-14 17:54:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-14 17:54:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-14 17:54:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:54:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2021-12-14 17:54:28,451 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2021-12-14 17:54:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2021-12-14 17:54:28,451 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2021-12-14 17:54:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:54:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:54:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:54:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2021-12-14 17:54:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2021-12-14 17:54:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2021-12-14 17:54:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2021-12-14 17:54:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2021-12-14 17:54:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2021-12-14 17:54:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2021-12-14 17:54:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2021-12-14 17:54:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-12-14 17:54:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-12-14 17:54:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2021-12-14 17:54:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2021-12-14 17:54:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-14 17:54:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-14 17:54:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2021-12-14 17:54:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2021-12-14 17:54:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2021-12-14 17:54:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2021-12-14 17:54:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2021-12-14 17:54:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2021-12-14 17:54:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2021-12-14 17:54:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2021-12-14 17:54:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-12-14 17:54:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-12-14 17:54:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~VOID [2021-12-14 17:54:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~VOID [2021-12-14 17:54:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-14 17:54:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-14 17:54:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2021-12-14 17:54:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2021-12-14 17:54:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 17:54:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 17:54:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:54:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:54:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2021-12-14 17:54:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2021-12-14 17:54:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2021-12-14 17:54:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2021-12-14 17:54:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~VOID [2021-12-14 17:54:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~VOID [2021-12-14 17:54:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-14 17:54:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-14 17:54:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:54:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:54:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:54:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:54:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:54:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:54:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:54:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:54:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-14 17:54:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-14 17:54:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-14 17:54:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2021-12-14 17:54:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2021-12-14 17:54:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2021-12-14 17:54:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2021-12-14 17:54:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2021-12-14 17:54:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2021-12-14 17:54:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:54:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:54:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2021-12-14 17:54:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2021-12-14 17:54:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:54:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:54:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2021-12-14 17:54:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2021-12-14 17:54:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2021-12-14 17:54:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2021-12-14 17:54:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:54:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:54:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:54:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:54:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-14 17:54:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-14 17:54:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 17:54:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 17:54:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2021-12-14 17:54:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2021-12-14 17:54:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-12-14 17:54:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-12-14 17:54:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2021-12-14 17:54:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2021-12-14 17:54:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-12-14 17:54:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-12-14 17:54:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:54:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2021-12-14 17:54:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2021-12-14 17:54:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-14 17:54:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-14 17:54:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:54:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-14 17:54:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-14 17:54:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2021-12-14 17:54:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2021-12-14 17:54:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2021-12-14 17:54:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2021-12-14 17:54:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-14 17:54:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-14 17:54:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~int [2021-12-14 17:54:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~int [2021-12-14 17:54:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2021-12-14 17:54:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2021-12-14 17:54:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2021-12-14 17:54:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2021-12-14 17:54:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:54:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2021-12-14 17:54:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2021-12-14 17:54:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:54:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:54:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2021-12-14 17:54:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2021-12-14 17:54:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2021-12-14 17:54:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2021-12-14 17:54:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:54:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:54:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-14 17:54:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-14 17:54:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2021-12-14 17:54:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2021-12-14 17:54:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure do_midi_msg [2021-12-14 17:54:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure do_midi_msg [2021-12-14 17:54:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2021-12-14 17:54:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2021-12-14 17:54:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:54:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:54:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2021-12-14 17:54:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2021-12-14 17:54:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2021-12-14 17:54:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2021-12-14 17:54:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2021-12-14 17:54:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2021-12-14 17:54:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2021-12-14 17:54:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2021-12-14 17:54:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2021-12-14 17:54:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2021-12-14 17:54:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_speed [2021-12-14 17:54:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_speed [2021-12-14 17:54:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-14 17:54:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-14 17:54:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2021-12-14 17:54:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2021-12-14 17:54:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2021-12-14 17:54:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2021-12-14 17:54:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:54:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:54:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:54:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-14 17:54:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-14 17:54:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2021-12-14 17:54:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2021-12-14 17:54:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2021-12-14 17:54:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2021-12-14 17:54:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-14 17:54:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-14 17:54:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2021-12-14 17:54:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2021-12-14 17:54:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 17:54:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 17:54:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure do_sequencer_timer [2021-12-14 17:54:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sequencer_timer [2021-12-14 17:54:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2021-12-14 17:54:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2021-12-14 17:54:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2021-12-14 17:54:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2021-12-14 17:54:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-14 17:54:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-14 17:54:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:54:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:54:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2021-12-14 17:54:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2021-12-14 17:54:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2021-12-14 17:54:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2021-12-14 17:54:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2021-12-14 17:54:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2021-12-14 17:54:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2021-12-14 17:54:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2021-12-14 17:54:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2021-12-14 17:54:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2021-12-14 17:54:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:54:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:54:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-14 17:54:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-14 17:54:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:54:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2021-12-14 17:54:28,477 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2021-12-14 17:54:29,630 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:54:29,633 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:54:30,006 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:54:30,060 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0 != ~tmp___1~3;#res := ~ret~3; [2021-12-14 17:54:30,060 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0 != ~tmp___1~3);#res := ~ret~3; [2021-12-14 17:54:30,060 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0 != ~tmp___0~8;#res := ~ret~3; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0 != ~tmp___0~8);#res := ~ret~3; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16 == ~size; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10 == ~size; [2021-12-14 17:54:30,061 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8 == ~size; [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := (if ~tmp___2~2 % 18446744073709551616 % 4294967296 <= 2147483647 then ~tmp___2~2 % 18446744073709551616 % 4294967296 else ~tmp___2~2 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845: SUMMARY for call #t~ret118 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2 == ~size; [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4 == ~size; [2021-12-14 17:54:30,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: assume -9223372036854775808 <= #t~ret117 && #t~ret117 <= 9223372036854775807;~tmp___1~3 := #t~ret117;havoc #t~ret117; [2021-12-14 17:54:30,063 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835: SUMMARY for call #t~ret117 := ldv__builtin_expect((if 0 != ~ret~3 then 1 else 0), 0); srcloc: null [2021-12-14 17:54:30,063 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: assume -9223372036854775808 <= #t~ret116 && #t~ret116 <= 9223372036854775807;~tmp___0~8 := #t~ret116;havoc #t~ret116; [2021-12-14 17:54:30,063 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: SUMMARY for call #t~ret116 := ldv__builtin_expect((if 0 != ~ret~3 then 1 else 0), 0); srcloc: null [2021-12-14 17:54:30,063 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2021-12-14 17:54:30,063 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2021-12-14 17:54:36,117 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2021-12-14 17:54:36,117 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,117 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 4 == __copy_from_user_~size#1; [2021-12-14 17:54:36,117 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 8 == __copy_from_user_~size#1; [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 10 == __copy_from_user_~size#1; [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 16 == __copy_from_user_~size#1; [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763-1: assume -9223372036854775808 <= __copy_from_user_#t~ret111#1 && __copy_from_user_#t~ret111#1 <= 9223372036854775807;__copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret111#1;havoc __copy_from_user_#t~ret111#1; [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763: SUMMARY for call __copy_from_user_#t~ret111#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-14 17:54:36,118 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume 0 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume !(0 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776: SUMMARY for call __copy_from_user_#t~ret112#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776-1: assume -9223372036854775808 <= __copy_from_user_#t~ret112#1 && __copy_from_user_#t~ret112#1 <= 9223372036854775807;__copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret112#1;havoc __copy_from_user_#t~ret112#1; [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume 0 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume !(0 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2021-12-14 17:54:36,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2021-12-14 17:54:36,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786: SUMMARY for call __copy_from_user_#t~ret113#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2021-12-14 17:54:36,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786-1: __copy_from_user_~tmp___2~1#1 := __copy_from_user_#t~ret113#1;havoc __copy_from_user_#t~ret113#1;__copy_from_user_#res#1 := (if __copy_from_user_~tmp___2~1#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_~tmp___2~1#1 % 18446744073709551616 % 4294967296 else __copy_from_user_~tmp___2~1#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-14 17:54:36,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##704: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 2 == __copy_from_user_~size#1; [2021-12-14 17:54:36,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-14 17:54:36,197 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:54:36,230 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:54:36,230 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:54:36,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:54:36 BoogieIcfgContainer [2021-12-14 17:54:36,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:54:36,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:54:36,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:54:36,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:54:36,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:54:25" (1/3) ... [2021-12-14 17:54:36,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9dc23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:54:36, skipping insertion in model container [2021-12-14 17:54:36,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:27" (2/3) ... [2021-12-14 17:54:36,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9dc23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:54:36, skipping insertion in model container [2021-12-14 17:54:36,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:54:36" (3/3) ... [2021-12-14 17:54:36,247 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2021-12-14 17:54:36,251 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:54:36,252 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:54:36,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:54:36,311 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 [2021-12-14 17:54:36,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:54:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 3787 states, 2893 states have (on average 1.5074317317663326) internal successors, (4361), 2997 states have internal predecessors, (4361), 757 states have call successors, (757), 136 states have call predecessors, (757), 135 states have return successors, (749), 721 states have call predecessors, (749), 749 states have call successors, (749) [2021-12-14 17:54:36,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-14 17:54:36,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:36,402 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:54:36,402 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:36,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1066878759, now seen corresponding path program 1 times [2021-12-14 17:54:36,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:36,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544703131] [2021-12-14 17:54:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:36,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:54:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:54:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:54:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:54:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:54:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:54:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-14 17:54:36,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:36,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544703131] [2021-12-14 17:54:36,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544703131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:36,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:36,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:54:36,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357706893] [2021-12-14 17:54:36,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:36,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:54:36,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:36,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:54:36,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:54:36,926 INFO L87 Difference]: Start difference. First operand has 3787 states, 2893 states have (on average 1.5074317317663326) internal successors, (4361), 2997 states have internal predecessors, (4361), 757 states have call successors, (757), 136 states have call predecessors, (757), 135 states have return successors, (749), 721 states have call predecessors, (749), 749 states have call successors, (749) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:54:44,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:54:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:54:46,240 INFO L93 Difference]: Finished difference Result 9183 states and 14360 transitions. [2021-12-14 17:54:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:54:46,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2021-12-14 17:54:46,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:54:46,282 INFO L225 Difference]: With dead ends: 9183 [2021-12-14 17:54:46,282 INFO L226 Difference]: Without dead ends: 5374 [2021-12-14 17:54:46,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:54:46,299 INFO L933 BasicCegarLoop]: 5662 mSDtfsCounter, 3984 mSDsluCounter, 7291 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 1369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4286 SdHoareTripleChecker+Valid, 12953 SdHoareTripleChecker+Invalid, 4496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1369 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-12-14 17:54:46,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4286 Valid, 12953 Invalid, 4496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1369 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2021-12-14 17:54:46,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2021-12-14 17:54:46,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 4841. [2021-12-14 17:54:46,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 3713 states have (on average 1.5025585779692971) internal successors, (5579), 3844 states have internal predecessors, (5579), 935 states have call successors, (935), 193 states have call predecessors, (935), 192 states have return successors, (931), 887 states have call predecessors, (931), 931 states have call successors, (931) [2021-12-14 17:54:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 7445 transitions. [2021-12-14 17:54:46,621 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 7445 transitions. Word has length 57 [2021-12-14 17:54:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:54:46,623 INFO L470 AbstractCegarLoop]: Abstraction has 4841 states and 7445 transitions. [2021-12-14 17:54:46,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:54:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 7445 transitions. [2021-12-14 17:54:46,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 17:54:46,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:46,628 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:54:46,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:54:46,629 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:46,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1168157038, now seen corresponding path program 1 times [2021-12-14 17:54:46,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:46,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477185957] [2021-12-14 17:54:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:46,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:54:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:54:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:54:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:54:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:54:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:54:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-14 17:54:46,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:46,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477185957] [2021-12-14 17:54:46,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477185957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:46,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:46,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:54:46,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917801208] [2021-12-14 17:54:46,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:46,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:54:46,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:46,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:54:46,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:54:46,943 INFO L87 Difference]: Start difference. First operand 4841 states and 7445 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:54:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:54:52,342 INFO L93 Difference]: Finished difference Result 10192 states and 15811 transitions. [2021-12-14 17:54:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:54:52,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-12-14 17:54:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:54:52,365 INFO L225 Difference]: With dead ends: 10192 [2021-12-14 17:54:52,365 INFO L226 Difference]: Without dead ends: 5366 [2021-12-14 17:54:52,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:54:52,379 INFO L933 BasicCegarLoop]: 5492 mSDtfsCounter, 6976 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 1595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7457 SdHoareTripleChecker+Valid, 7896 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1595 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:54:52,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7457 Valid, 7896 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1595 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-14 17:54:52,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5366 states. [2021-12-14 17:54:52,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5366 to 4841. [2021-12-14 17:54:52,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 3713 states have (on average 1.5020199299757608) internal successors, (5577), 3844 states have internal predecessors, (5577), 935 states have call successors, (935), 193 states have call predecessors, (935), 192 states have return successors, (931), 887 states have call predecessors, (931), 931 states have call successors, (931) [2021-12-14 17:54:52,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 7443 transitions. [2021-12-14 17:54:52,518 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 7443 transitions. Word has length 65 [2021-12-14 17:54:52,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:54:52,519 INFO L470 AbstractCegarLoop]: Abstraction has 4841 states and 7443 transitions. [2021-12-14 17:54:52,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:54:52,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 7443 transitions. [2021-12-14 17:54:52,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 17:54:52,520 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:52,520 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:54:52,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:54:52,521 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:52,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:52,521 INFO L85 PathProgramCache]: Analyzing trace with hash -420190864, now seen corresponding path program 1 times [2021-12-14 17:54:52,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:52,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331600475] [2021-12-14 17:54:52,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:52,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:54:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:54:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:54:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:54:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:54:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:54:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:52,716 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-14 17:54:52,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:52,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331600475] [2021-12-14 17:54:52,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331600475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:52,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:52,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:54:52,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285535638] [2021-12-14 17:54:52,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:52,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:54:52,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:52,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:54:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:54:52,719 INFO L87 Difference]: Start difference. First operand 4841 states and 7443 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:54:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:54:59,338 INFO L93 Difference]: Finished difference Result 5381 states and 8398 transitions. [2021-12-14 17:54:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:54:59,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-12-14 17:54:59,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:54:59,382 INFO L225 Difference]: With dead ends: 5381 [2021-12-14 17:54:59,382 INFO L226 Difference]: Without dead ends: 5378 [2021-12-14 17:54:59,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:54:59,391 INFO L933 BasicCegarLoop]: 5502 mSDtfsCounter, 6953 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 1591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7438 SdHoareTripleChecker+Valid, 7928 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1591 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:54:59,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7438 Valid, 7928 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1591 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-12-14 17:54:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-12-14 17:54:59,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 4851. [2021-12-14 17:54:59,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 3721 states have (on average 1.500940607363612) internal successors, (5585), 3851 states have internal predecessors, (5585), 935 states have call successors, (935), 195 states have call predecessors, (935), 194 states have return successors, (932), 888 states have call predecessors, (932), 932 states have call successors, (932) [2021-12-14 17:54:59,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 7452 transitions. [2021-12-14 17:54:59,535 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 7452 transitions. Word has length 65 [2021-12-14 17:54:59,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:54:59,537 INFO L470 AbstractCegarLoop]: Abstraction has 4851 states and 7452 transitions. [2021-12-14 17:54:59,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:54:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 7452 transitions. [2021-12-14 17:54:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-14 17:54:59,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:59,539 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:54:59,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:54:59,539 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:59,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:59,539 INFO L85 PathProgramCache]: Analyzing trace with hash -142231472, now seen corresponding path program 1 times [2021-12-14 17:54:59,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:59,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215967642] [2021-12-14 17:54:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:59,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:54:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:54:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:54:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:54:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:54:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:54:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:59,911 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-14 17:54:59,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:59,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215967642] [2021-12-14 17:54:59,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215967642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:59,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:59,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:54:59,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975721998] [2021-12-14 17:54:59,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:59,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:54:59,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:59,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:54:59,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:54:59,914 INFO L87 Difference]: Start difference. First operand 4851 states and 7452 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:55:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:08,297 INFO L93 Difference]: Finished difference Result 8450 states and 13058 transitions. [2021-12-14 17:55:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:55:08,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-12-14 17:55:08,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:08,355 INFO L225 Difference]: With dead ends: 8450 [2021-12-14 17:55:08,356 INFO L226 Difference]: Without dead ends: 8362 [2021-12-14 17:55:08,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:55:08,365 INFO L933 BasicCegarLoop]: 6114 mSDtfsCounter, 4725 mSDsluCounter, 7374 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 1643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5079 SdHoareTripleChecker+Valid, 13488 SdHoareTripleChecker+Invalid, 4977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1643 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:08,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5079 Valid, 13488 Invalid, 4977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1643 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2021-12-14 17:55:08,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8362 states. [2021-12-14 17:55:08,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8362 to 7445. [2021-12-14 17:55:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 5691 states have (on average 1.4958706729924443) internal successors, (8513), 5921 states have internal predecessors, (8513), 1423 states have call successors, (1423), 333 states have call predecessors, (1423), 330 states have return successors, (1422), 1324 states have call predecessors, (1422), 1420 states have call successors, (1422) [2021-12-14 17:55:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 11358 transitions. [2021-12-14 17:55:08,661 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 11358 transitions. Word has length 66 [2021-12-14 17:55:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:08,663 INFO L470 AbstractCegarLoop]: Abstraction has 7445 states and 11358 transitions. [2021-12-14 17:55:08,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:55:08,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 11358 transitions. [2021-12-14 17:55:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-14 17:55:08,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:08,681 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:55:08,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:55:08,681 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:08,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:08,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1797917777, now seen corresponding path program 1 times [2021-12-14 17:55:08,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:08,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522361978] [2021-12-14 17:55:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:08,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:08,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:55:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:08,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:55:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:55:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:55:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:55:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:55:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:55:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:55:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:55:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:55:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:09,092 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-14 17:55:09,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:09,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522361978] [2021-12-14 17:55:09,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522361978] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:09,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:09,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:55:09,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489290596] [2021-12-14 17:55:09,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:09,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:55:09,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:09,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:55:09,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:55:09,095 INFO L87 Difference]: Start difference. First operand 7445 states and 11358 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 17:55:21,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:55:23,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:55:24,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:55:27,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []