./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.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 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:20:36,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:20:36,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:20:36,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:20:36,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:20:36,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:20:36,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:20:36,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:20:36,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:20:36,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:20:36,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:20:36,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:20:36,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:20:36,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:20:36,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:20:36,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:20:36,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:20:36,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:20:36,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:20:36,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:20:36,447 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:20:36,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:20:36,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:20:36,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:20:36,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:20:36,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:20:36,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:20:36,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:20:36,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:20:36,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:20:36,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:20:36,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:20:36,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:20:36,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:20:36,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:20:36,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:20:36,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:20:36,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:20:36,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:20:36,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:20:36,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:20:36,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:20:36,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:20:36,488 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:20:36,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:20:36,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:20:36,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:20:36,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:20:36,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:20:36,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:20:36,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:20:36,491 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:20:36,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:20:36,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:20:36,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:20:36,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:20:36,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:20:36,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:20:36,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:20:36,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:20:36,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:20:36,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:20:36,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:20:36,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:20:36,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:20:36,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:20:36,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:20:36,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:20:36,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:20:36,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:20:36,494 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:20:36,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:20:36,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:20:36,495 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 549d105dbd2b95e1c241c01b48dc69ec107f34e0fb82917a92dcec665dfc2efc [2022-07-12 11:20:36,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:20:36,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:20:36,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:20:36,716 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:20:36,717 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:20:36,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2022-07-12 11:20:36,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c5dca0d/6fb8b77383e64448938e10319d94f083/FLAGfe4e4489f [2022-07-12 11:20:37,404 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:20:37,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2022-07-12 11:20:37,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c5dca0d/6fb8b77383e64448938e10319d94f083/FLAGfe4e4489f [2022-07-12 11:20:37,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c5dca0d/6fb8b77383e64448938e10319d94f083 [2022-07-12 11:20:37,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:20:37,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:20:37,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:20:37,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:20:37,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:20:37,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:20:37" (1/1) ... [2022-07-12 11:20:37,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c60ac81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:37, skipping insertion in model container [2022-07-12 11:20:37,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:20:37" (1/1) ... [2022-07-12 11:20:37,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:20:37,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:20:39,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2022-07-12 11:20:39,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:20:39,322 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:20:39,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-tty-synclink_gt.ko.cil.out.i[379011,379024] [2022-07-12 11:20:39,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:20:39,871 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:20:39,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39 WrapperNode [2022-07-12 11:20:39,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:20:39,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:20:39,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:20:39,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:20:39,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:39,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,165 INFO L137 Inliner]: procedures = 343, calls = 3523, calls flagged for inlining = 191, calls inlined = 172, statements flattened = 8457 [2022-07-12 11:20:40,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:20:40,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:20:40,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:20:40,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:20:40,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:20:40,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:20:40,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:20:40,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:20:40,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (1/1) ... [2022-07-12 11:20:40,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:20:40,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:20:40,544 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) [2022-07-12 11:20:40,567 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 [2022-07-12 11:20:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-07-12 11:20:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-07-12 11:20:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 11:20:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 11:20:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 11:20:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 11:20:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 11:20:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 11:20:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 11:20:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 11:20:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 11:20:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2022-07-12 11:20:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2022-07-12 11:20:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 11:20:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 11:20:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2022-07-12 11:20:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2022-07-12 11:20:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-12 11:20:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-12 11:20:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-07-12 11:20:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-07-12 11:20:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 11:20:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 11:20:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2022-07-12 11:20:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2022-07-12 11:20:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-07-12 11:20:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-07-12 11:20:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 11:20:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 11:20:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 11:20:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 11:20:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 11:20:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 11:20:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 11:20:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 11:20:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure free_bufs [2022-07-12 11:20:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bufs [2022-07-12 11:20:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-12 11:20:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-12 11:20:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2022-07-12 11:20:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2022-07-12 11:20:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2022-07-12 11:20:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2022-07-12 11:20:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 11:20:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 11:20:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 11:20:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 11:20:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2022-07-12 11:20:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2022-07-12 11:20:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:20:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 11:20:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2022-07-12 11:20:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2022-07-12 11:20:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:20:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rbufs [2022-07-12 11:20:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rbufs [2022-07-12 11:20:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2022-07-12 11:20:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2022-07-12 11:20:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-12 11:20:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-12 11:20:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 11:20:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 11:20:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-07-12 11:20:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-07-12 11:20:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:20:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:20:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2022-07-12 11:20:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2022-07-12 11:20:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2022-07-12 11:20:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2022-07-12 11:20:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 11:20:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 11:20:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure async_mode [2022-07-12 11:20:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mode [2022-07-12 11:20:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2022-07-12 11:20:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2022-07-12 11:20:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-12 11:20:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-12 11:20:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 11:20:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 11:20:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 11:20:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 11:20:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 11:20:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 11:20:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-07-12 11:20:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-07-12 11:20:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 11:20:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 11:20:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2022-07-12 11:20:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2022-07-12 11:20:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 11:20:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 11:20:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-12 11:20:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-12 11:20:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure update_tx_timer [2022-07-12 11:20:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure update_tx_timer [2022-07-12 11:20:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bufs [2022-07-12 11:20:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bufs [2022-07-12 11:20:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 11:20:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 11:20:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 11:20:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure msc_set_vcr [2022-07-12 11:20:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure msc_set_vcr [2022-07-12 11:20:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure isr_txeom [2022-07-12 11:20:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_txeom [2022-07-12 11:20:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 11:20:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 11:20:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure setup_timer_key [2022-07-12 11:20:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_timer_key [2022-07-12 11:20:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 11:20:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 11:20:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_reset [2022-07-12 11:20:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_reset [2022-07-12 11:20:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 11:20:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2022-07-12 11:20:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2022-07-12 11:20:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2022-07-12 11:20:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2022-07-12 11:20:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure slgt_cleanup [2022-07-12 11:20:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure slgt_cleanup [2022-07-12 11:20:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:20:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 11:20:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 11:20:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 11:20:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 11:20:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-07-12 11:20:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-07-12 11:20:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2022-07-12 11:20:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2022-07-12 11:20:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-12 11:20:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-12 11:20:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 11:20:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 11:20:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2022-07-12 11:20:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2022-07-12 11:20:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 11:20:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 11:20:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 11:20:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 11:20:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load [2022-07-12 11:20:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load [2022-07-12 11:20:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg32 [2022-07-12 11:20:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg32 [2022-07-12 11:20:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_done [2022-07-12 11:20:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_done [2022-07-12 11:20:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 11:20:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 11:20:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:20:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 11:20:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 11:20:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2022-07-12 11:20:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2022-07-12 11:20:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg32 [2022-07-12 11:20:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg32 [2022-07-12 11:20:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure isr_rxdata [2022-07-12 11:20:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_rxdata [2022-07-12 11:20:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2022-07-12 11:20:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2022-07-12 11:20:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure tbuf_bytes [2022-07-12 11:20:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure tbuf_bytes [2022-07-12 11:20:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:20:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-07-12 11:20:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-07-12 11:20:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 11:20:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 11:20:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:20:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-07-12 11:20:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-07-12 11:20:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2022-07-12 11:20:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2022-07-12 11:20:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:20:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 11:20:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg16 [2022-07-12 11:20:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg16 [2022-07-12 11:20:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2022-07-12 11:20:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2022-07-12 11:20:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 11:20:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 11:20:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure rd_reg16 [2022-07-12 11:20:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_reg16 [2022-07-12 11:20:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 11:20:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 11:20:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure sync_mode [2022-07-12 11:20:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_mode [2022-07-12 11:20:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2022-07-12 11:20:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2022-07-12 11:20:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2022-07-12 11:20:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2022-07-12 11:20:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 11:20:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 11:20:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-07-12 11:20:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-07-12 11:20:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 11:20:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 11:20:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure free_tmp_rbuf [2022-07-12 11:20:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tmp_rbuf [2022-07-12 11:20:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 11:20:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 11:20:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure tdma_reset [2022-07-12 11:20:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure tdma_reset [2022-07-12 11:20:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2022-07-12 11:20:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2022-07-12 11:20:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 11:20:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 11:20:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:20:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2022-07-12 11:20:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2022-07-12 11:20:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2022-07-12 11:20:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2022-07-12 11:20:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure wr_reg8 [2022-07-12 11:20:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure wr_reg8 [2022-07-12 11:20:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2022-07-12 11:20:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2022-07-12 11:20:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:20:40,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:20:41,283 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:20:41,285 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:20:41,483 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:41,531 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-07-12 11:20:41,531 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-07-12 11:20:41,639 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-12 11:20:41,639 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-12 11:20:42,040 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:42,113 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-07-12 11:20:42,113 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-07-12 11:20:42,275 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:42,276 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:42,368 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2022-07-12 11:20:42,368 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2022-07-12 11:20:42,368 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##132: assume !false; [2022-07-12 11:20:42,368 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume false; [2022-07-12 11:20:42,507 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:55,503 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940: SUMMARY for call modem_input_wait_#t~ret1389#1.base, modem_input_wait_#t~ret1389#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,503 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10940-1: modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset := modem_input_wait_#t~ret1389#1.base, modem_input_wait_#t~ret1389#1.offset;havoc modem_input_wait_#t~ret1389#1.base, modem_input_wait_#t~ret1389#1.offset;modem_input_wait_~__ptr___3~1#1.base, modem_input_wait_~__ptr___3~1#1.offset := modem_input_wait_~tmp___8~2#1.base, modem_input_wait_~tmp___8~2#1.offset; [2022-07-12 11:20:55,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882: SUMMARY for call modem_input_wait_#t~ret1358#1.base, modem_input_wait_#t~ret1358#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882-1: modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset := modem_input_wait_#t~ret1358#1.base, modem_input_wait_#t~ret1358#1.offset;havoc modem_input_wait_#t~ret1358#1.base, modem_input_wait_#t~ret1358#1.offset;modem_input_wait_~__ptr~3#1.base, modem_input_wait_~__ptr~3#1.offset := modem_input_wait_~tmp___1~21#1.base, modem_input_wait_~tmp___1~21#1.offset; [2022-07-12 11:20:55,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2022-07-12 11:20:55,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2022-07-12 11:20:55,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##474: assume !false; [2022-07-12 11:20:55,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##473: assume false; [2022-07-12 11:20:55,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037-1: modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset := modem_input_wait_#t~ret1432#1.base, modem_input_wait_#t~ret1432#1.offset;havoc modem_input_wait_#t~ret1432#1.base, modem_input_wait_#t~ret1432#1.offset;modem_input_wait_~__ptr___7~1#1.base, modem_input_wait_~__ptr___7~1#1.offset := modem_input_wait_~tmp___12~1#1.base, modem_input_wait_~tmp___12~1#1.offset; [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L11037: SUMMARY for call modem_input_wait_#t~ret1432#1.base, modem_input_wait_#t~ret1432#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##305: assume !false; [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##304: assume false; [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !false; [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##312: assume false; [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655-1: remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset := remove_cond_wait_#t~ret1293#1.base, remove_cond_wait_#t~ret1293#1.offset;havoc remove_cond_wait_#t~ret1293#1.base, remove_cond_wait_#t~ret1293#1.offset;remove_cond_wait_~__ptr~2#1.base, remove_cond_wait_~__ptr~2#1.offset := remove_cond_wait_~tmp~91#1.base, remove_cond_wait_~tmp~91#1.offset; [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10655: SUMMARY for call remove_cond_wait_#t~ret1293#1.base, remove_cond_wait_#t~ret1293#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195: SUMMARY for call wait_mgsl_event_#t~ret1217#1.base, wait_mgsl_event_#t~ret1217#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,505 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10195-1: wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset := wait_mgsl_event_#t~ret1217#1.base, wait_mgsl_event_#t~ret1217#1.offset;havoc wait_mgsl_event_#t~ret1217#1.base, wait_mgsl_event_#t~ret1217#1.offset;wait_mgsl_event_~__ptr___7~0#1.base, wait_mgsl_event_~__ptr___7~0#1.offset := wait_mgsl_event_~tmp___26~0#1.base, wait_mgsl_event_~tmp___26~0#1.offset; [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592: SUMMARY for call add_cond_wait_#t~ret1288#1.base, add_cond_wait_#t~ret1288#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##81: assume !false; [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##80: assume false; [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10592-1: add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset := add_cond_wait_#t~ret1288#1.base, add_cond_wait_#t~ret1288#1.offset;havoc add_cond_wait_#t~ret1288#1.base, add_cond_wait_#t~ret1288#1.offset;add_cond_wait_~__ptr~1#1.base, add_cond_wait_~__ptr~1#1.offset := add_cond_wait_~tmp~90#1.base, add_cond_wait_~tmp~90#1.offset; [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064: SUMMARY for call wait_mgsl_event_#t~ret1139#1.base, wait_mgsl_event_#t~ret1139#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10064-1: wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset := wait_mgsl_event_#t~ret1139#1.base, wait_mgsl_event_#t~ret1139#1.offset;havoc wait_mgsl_event_#t~ret1139#1.base, wait_mgsl_event_#t~ret1139#1.offset;wait_mgsl_event_~__ptr___3~0#1.base, wait_mgsl_event_~__ptr___3~0#1.offset := wait_mgsl_event_~tmp___13~0#1.base, wait_mgsl_event_~tmp___13~0#1.offset; [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-07-12 11:20:55,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##179: assume false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume !false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume !false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume false; [2022-07-12 11:20:55,507 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##376: assume !false; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004: SUMMARY for call wait_mgsl_event_#t~ret1100#1.base, wait_mgsl_event_#t~ret1100#1.offset := get_current(); srcloc: null [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L10004-1: wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset := wait_mgsl_event_#t~ret1100#1.base, wait_mgsl_event_#t~ret1100#1.offset;havoc wait_mgsl_event_#t~ret1100#1.base, wait_mgsl_event_#t~ret1100#1.offset;wait_mgsl_event_~__ptr~0#1.base, wait_mgsl_event_~__ptr~0#1.offset := wait_mgsl_event_~tmp___6~1#1.base, wait_mgsl_event_~tmp___6~1#1.offset; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##399: assume !false; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##398: assume false; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##337: assume !false; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##336: assume false; [2022-07-12 11:20:55,508 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##349: assume !false; [2022-07-12 11:20:55,509 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##348: assume false; [2022-07-12 11:20:55,614 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:55,616 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:55,622 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:55,622 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:55,623 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:21:04,041 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume !false;call ULTIMATE.dealloc(hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset);havoc hdlcdev_ioctl_~#new_line~0#1.base, hdlcdev_ioctl_~#new_line~0#1.offset; [2022-07-12 11:21:04,041 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##288: assume false; [2022-07-12 11:21:04,041 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##312: assume false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392: SUMMARY for call block_til_ready_#t~ret1492#1.base, block_til_ready_#t~ret1492#1.offset := get_current(); srcloc: null [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L11392-1: block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset := block_til_ready_#t~ret1492#1.base, block_til_ready_#t~ret1492#1.offset;havoc block_til_ready_#t~ret1492#1.base, block_til_ready_#t~ret1492#1.offset;block_til_ready_~__ptr___3~2#1.base, block_til_ready_~__ptr___3~2#1.offset := block_til_ready_~tmp___9~2#1.base, block_til_ready_~tmp___9~2#1.offset; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##335: assume !false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##334: assume false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##423: assume false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##424: assume !false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##448: assume !false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##447: assume false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302-1: block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset := block_til_ready_#t~ret1478#1.base, block_til_ready_#t~ret1478#1.offset;havoc block_til_ready_#t~ret1478#1.base, block_til_ready_#t~ret1478#1.offset;block_til_ready_~__ptr~4#1.base, block_til_ready_~__ptr~4#1.offset := block_til_ready_~tmp___2~14#1.base, block_til_ready_~tmp___2~14#1.offset; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L11302: SUMMARY for call block_til_ready_#t~ret1478#1.base, block_til_ready_#t~ret1478#1.offset := get_current(); srcloc: null [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume !false; [2022-07-12 11:21:04,042 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##132: assume false; [2022-07-12 11:21:04,172 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:21:04,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:21:04,196 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-12 11:21:04,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:21:04 BoogieIcfgContainer [2022-07-12 11:21:04,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:21:04,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:21:04,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:21:04,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:21:04,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:20:37" (1/3) ... [2022-07-12 11:21:04,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743554c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:21:04, skipping insertion in model container [2022-07-12 11:21:04,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:20:39" (2/3) ... [2022-07-12 11:21:04,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743554c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:21:04, skipping insertion in model container [2022-07-12 11:21:04,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:21:04" (3/3) ... [2022-07-12 11:21:04,206 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-tty-synclink_gt.ko.cil.out.i [2022-07-12 11:21:04,217 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:21:04,218 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 11:21:04,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:21:04,295 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22109b41, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6f16b3be [2022-07-12 11:21:04,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 11:21:04,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 2790 states, 2073 states have (on average 1.4177520501688374) internal successors, (2939), 2148 states have internal predecessors, (2939), 627 states have call successors, (627), 98 states have call predecessors, (627), 98 states have return successors, (627), 607 states have call predecessors, (627), 627 states have call successors, (627) [2022-07-12 11:21:04,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-12 11:21:04,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:21:04,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:21:04,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:21:04,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:21:04,317 INFO L85 PathProgramCache]: Analyzing trace with hash -927178915, now seen corresponding path program 1 times [2022-07-12 11:21:04,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:21:04,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544627561] [2022-07-12 11:21:04,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:21:04,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:21:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:21:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:21:04,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:21:04,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544627561] [2022-07-12 11:21:04,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544627561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:21:04,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:21:04,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:21:04,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814699322] [2022-07-12 11:21:04,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:21:04,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:21:04,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:21:04,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:21:04,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:21:04,842 INFO L87 Difference]: Start difference. First operand has 2790 states, 2073 states have (on average 1.4177520501688374) internal successors, (2939), 2148 states have internal predecessors, (2939), 627 states have call successors, (627), 98 states have call predecessors, (627), 98 states have return successors, (627), 607 states have call predecessors, (627), 627 states have call successors, (627) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:21:09,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:10,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:21:15,215 INFO L93 Difference]: Finished difference Result 8410 states and 12763 transitions. [2022-07-12 11:21:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:21:15,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-12 11:21:15,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:21:15,257 INFO L225 Difference]: With dead ends: 8410 [2022-07-12 11:21:15,258 INFO L226 Difference]: Without dead ends: 5630 [2022-07-12 11:21:15,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:21:15,278 INFO L413 NwaCegarLoop]: 5479 mSDtfsCounter, 5453 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6075 SdHoareTripleChecker+Valid, 9586 SdHoareTripleChecker+Invalid, 5114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 3325 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:21:15,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6075 Valid, 9586 Invalid, 5114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1788 Valid, 3325 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-07-12 11:21:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-07-12 11:21:15,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5513. [2022-07-12 11:21:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5513 states, 4070 states have (on average 1.4024570024570024) internal successors, (5708), 4235 states have internal predecessors, (5708), 1248 states have call successors, (1248), 195 states have call predecessors, (1248), 194 states have return successors, (1246), 1206 states have call predecessors, (1246), 1246 states have call successors, (1246) [2022-07-12 11:21:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5513 states to 5513 states and 8202 transitions. [2022-07-12 11:21:15,558 INFO L78 Accepts]: Start accepts. Automaton has 5513 states and 8202 transitions. Word has length 17 [2022-07-12 11:21:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:21:15,558 INFO L495 AbstractCegarLoop]: Abstraction has 5513 states and 8202 transitions. [2022-07-12 11:21:15,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:21:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5513 states and 8202 transitions. [2022-07-12 11:21:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 11:21:15,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:21:15,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:21:15,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:21:15,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:21:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:21:15,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1980607808, now seen corresponding path program 1 times [2022-07-12 11:21:15,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:21:15,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811056022] [2022-07-12 11:21:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:21:15,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:21:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:21:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 11:21:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:15,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 11:21:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:15,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 11:21:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:21:15,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:21:15,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811056022] [2022-07-12 11:21:15,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811056022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:21:15,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:21:15,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:21:15,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777676609] [2022-07-12 11:21:15,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:21:15,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:21:15,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:21:15,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:21:15,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:21:15,755 INFO L87 Difference]: Start difference. First operand 5513 states and 8202 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:21:17,823 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 [] [2022-07-12 11:21:22,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:27,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:29,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:31,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:34,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:37,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:39,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:41,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:21:43,039 INFO L93 Difference]: Finished difference Result 11275 states and 16852 transitions. [2022-07-12 11:21:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:21:43,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-07-12 11:21:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:21:43,067 INFO L225 Difference]: With dead ends: 11275 [2022-07-12 11:21:43,067 INFO L226 Difference]: Without dead ends: 5857 [2022-07-12 11:21:43,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:21:43,090 INFO L413 NwaCegarLoop]: 3717 mSDtfsCounter, 2231 mSDsluCounter, 7035 mSDsCounter, 0 mSdLazyCounter, 6371 mSolverCounterSat, 1624 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2368 SdHoareTripleChecker+Valid, 10752 SdHoareTripleChecker+Invalid, 8002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1624 IncrementalHoareTripleChecker+Valid, 6371 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-07-12 11:21:43,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2368 Valid, 10752 Invalid, 8002 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1624 Valid, 6371 Invalid, 7 Unknown, 0 Unchecked, 26.9s Time] [2022-07-12 11:21:43,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2022-07-12 11:21:43,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 5513. [2022-07-12 11:21:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5513 states, 4070 states have (on average 1.4022113022113023) internal successors, (5707), 4235 states have internal predecessors, (5707), 1248 states have call successors, (1248), 195 states have call predecessors, (1248), 194 states have return successors, (1246), 1206 states have call predecessors, (1246), 1246 states have call successors, (1246) [2022-07-12 11:21:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5513 states to 5513 states and 8201 transitions. [2022-07-12 11:21:43,257 INFO L78 Accepts]: Start accepts. Automaton has 5513 states and 8201 transitions. Word has length 54 [2022-07-12 11:21:43,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:21:43,258 INFO L495 AbstractCegarLoop]: Abstraction has 5513 states and 8201 transitions. [2022-07-12 11:21:43,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:21:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5513 states and 8201 transitions. [2022-07-12 11:21:43,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-12 11:21:43,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:21:43,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:21:43,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 11:21:43,264 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:21:43,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:21:43,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1974818855, now seen corresponding path program 1 times [2022-07-12 11:21:43,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:21:43,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086540242] [2022-07-12 11:21:43,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:21:43,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:21:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:21:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:21:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:43,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 11:21:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:43,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 11:21:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:21:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:21:43,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:21:43,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086540242] [2022-07-12 11:21:43,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086540242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:21:43,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:21:43,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:21:43,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039304882] [2022-07-12 11:21:43,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:21:43,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:21:43,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:21:43,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:21:43,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:21:43,613 INFO L87 Difference]: Start difference. First operand 5513 states and 8201 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:21:45,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:49,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:51,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:21:57,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:00,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:02,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:05,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:08,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:10,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:12,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:15,053 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 [] [2022-07-12 11:22:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:22:16,622 INFO L93 Difference]: Finished difference Result 9678 states and 14621 transitions. [2022-07-12 11:22:16,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:22:16,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2022-07-12 11:22:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:22:16,666 INFO L225 Difference]: With dead ends: 9678 [2022-07-12 11:22:16,666 INFO L226 Difference]: Without dead ends: 6927 [2022-07-12 11:22:16,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:22:16,675 INFO L413 NwaCegarLoop]: 4960 mSDtfsCounter, 5694 mSDsluCounter, 11083 mSDsCounter, 0 mSdLazyCounter, 9128 mSolverCounterSat, 2791 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5831 SdHoareTripleChecker+Valid, 16043 SdHoareTripleChecker+Invalid, 11925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2791 IncrementalHoareTripleChecker+Valid, 9128 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:22:16,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5831 Valid, 16043 Invalid, 11925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2791 Valid, 9128 Invalid, 6 Unknown, 0 Unchecked, 32.5s Time] [2022-07-12 11:22:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6927 states. [2022-07-12 11:22:16,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6927 to 5516. [2022-07-12 11:22:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5516 states, 4073 states have (on average 1.401915050331451) internal successors, (5710), 4238 states have internal predecessors, (5710), 1248 states have call successors, (1248), 195 states have call predecessors, (1248), 194 states have return successors, (1246), 1206 states have call predecessors, (1246), 1246 states have call successors, (1246) [2022-07-12 11:22:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5516 states to 5516 states and 8204 transitions. [2022-07-12 11:22:16,862 INFO L78 Accepts]: Start accepts. Automaton has 5516 states and 8204 transitions. Word has length 61 [2022-07-12 11:22:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:22:16,862 INFO L495 AbstractCegarLoop]: Abstraction has 5516 states and 8204 transitions. [2022-07-12 11:22:16,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:22:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5516 states and 8204 transitions. [2022-07-12 11:22:16,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 11:22:16,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:22:16,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:22:16,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 11:22:16,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:22:16,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:22:16,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1031219166, now seen corresponding path program 1 times [2022-07-12 11:22:16,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:22:16,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168486238] [2022-07-12 11:22:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:22:16,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:22:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:22:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:17,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:22:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 11:22:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:22:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:22:17,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:22:17,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168486238] [2022-07-12 11:22:17,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168486238] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:22:17,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:22:17,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:22:17,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920724674] [2022-07-12 11:22:17,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:22:17,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:22:17,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:22:17,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:22:17,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:22:17,117 INFO L87 Difference]: Start difference. First operand 5516 states and 8204 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:22:19,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:22,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:27,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:31,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:34,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:36,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:38,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:40,705 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 [] [2022-07-12 11:22:41,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:22:41,473 INFO L93 Difference]: Finished difference Result 11321 states and 16971 transitions. [2022-07-12 11:22:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:22:41,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 65 [2022-07-12 11:22:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:22:41,502 INFO L225 Difference]: With dead ends: 11321 [2022-07-12 11:22:41,502 INFO L226 Difference]: Without dead ends: 5820 [2022-07-12 11:22:41,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:22:41,523 INFO L413 NwaCegarLoop]: 3507 mSDtfsCounter, 5364 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 2450 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5772 SdHoareTripleChecker+Valid, 5909 SdHoareTripleChecker+Invalid, 5095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2450 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:22:41,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5772 Valid, 5909 Invalid, 5095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2450 Valid, 2638 Invalid, 7 Unknown, 0 Unchecked, 24.1s Time] [2022-07-12 11:22:41,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5820 states. [2022-07-12 11:22:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5820 to 5476. [2022-07-12 11:22:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 4039 states have (on average 1.3589997524139639) internal successors, (5489), 4202 states have internal predecessors, (5489), 1244 states have call successors, (1244), 193 states have call predecessors, (1244), 192 states have return successors, (1242), 1202 states have call predecessors, (1242), 1242 states have call successors, (1242) [2022-07-12 11:22:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 7975 transitions. [2022-07-12 11:22:41,692 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 7975 transitions. Word has length 65 [2022-07-12 11:22:41,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:22:41,693 INFO L495 AbstractCegarLoop]: Abstraction has 5476 states and 7975 transitions. [2022-07-12 11:22:41,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:22:41,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 7975 transitions. [2022-07-12 11:22:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 11:22:41,697 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:22:41,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:22:41,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 11:22:41,698 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:22:41,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:22:41,698 INFO L85 PathProgramCache]: Analyzing trace with hash -969179552, now seen corresponding path program 1 times [2022-07-12 11:22:41,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:22:41,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397577777] [2022-07-12 11:22:41,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:22:41,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:22:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:22:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:41,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:22:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:41,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 11:22:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:22:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:22:41,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:22:41,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:22:41,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397577777] [2022-07-12 11:22:41,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397577777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:22:41,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:22:41,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:22:41,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539893827] [2022-07-12 11:22:41,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:22:41,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:22:41,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:22:41,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:22:41,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:22:41,949 INFO L87 Difference]: Start difference. First operand 5476 states and 7975 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:22:44,062 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 [] [2022-07-12 11:22:46,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:49,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:55,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:57,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:22:59,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:03,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:07,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:09,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:12,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:14,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:18,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:20,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:25,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:27,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:29,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:31,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:33,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:35,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:38,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:40,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:23:44,425 INFO L93 Difference]: Finished difference Result 17057 states and 24991 transitions. [2022-07-12 11:23:44,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:23:44,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 65 [2022-07-12 11:23:44,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:23:44,475 INFO L225 Difference]: With dead ends: 17057 [2022-07-12 11:23:44,476 INFO L226 Difference]: Without dead ends: 11601 [2022-07-12 11:23:44,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:23:44,495 INFO L413 NwaCegarLoop]: 7175 mSDtfsCounter, 10658 mSDsluCounter, 8374 mSDsCounter, 0 mSdLazyCounter, 9587 mSolverCounterSat, 4701 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11475 SdHoareTripleChecker+Valid, 15549 SdHoareTripleChecker+Invalid, 14305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4701 IncrementalHoareTripleChecker+Valid, 9587 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:23:44,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11475 Valid, 15549 Invalid, 14305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4701 Valid, 9587 Invalid, 17 Unknown, 0 Unchecked, 61.7s Time] [2022-07-12 11:23:44,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11601 states. [2022-07-12 11:23:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11601 to 10905. [2022-07-12 11:23:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10905 states, 8040 states have (on average 1.3593283582089553) internal successors, (10929), 8362 states have internal predecessors, (10929), 2482 states have call successors, (2482), 383 states have call predecessors, (2482), 382 states have return successors, (2480), 2399 states have call predecessors, (2480), 2480 states have call successors, (2480) [2022-07-12 11:23:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10905 states to 10905 states and 15891 transitions. [2022-07-12 11:23:45,064 INFO L78 Accepts]: Start accepts. Automaton has 10905 states and 15891 transitions. Word has length 65 [2022-07-12 11:23:45,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:23:45,064 INFO L495 AbstractCegarLoop]: Abstraction has 10905 states and 15891 transitions. [2022-07-12 11:23:45,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 11:23:45,065 INFO L276 IsEmpty]: Start isEmpty. Operand 10905 states and 15891 transitions. [2022-07-12 11:23:45,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 11:23:45,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:23:45,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:23:45,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 11:23:45,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:23:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:23:45,073 INFO L85 PathProgramCache]: Analyzing trace with hash 756675024, now seen corresponding path program 1 times [2022-07-12 11:23:45,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:23:45,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981539507] [2022-07-12 11:23:45,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:23:45,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:23:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:23:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:23:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:23:45,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:23:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:23:45,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 11:23:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:23:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:23:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:23:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:23:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:23:45,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:23:45,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:23:45,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981539507] [2022-07-12 11:23:45,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981539507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:23:45,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:23:45,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:23:45,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927960889] [2022-07-12 11:23:45,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:23:45,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:23:45,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:23:45,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:23:45,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:23:45,377 INFO L87 Difference]: Start difference. First operand 10905 states and 15891 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 11:23:47,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:49,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:56,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:23:58,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:00,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:03,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:05,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:07,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:09,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:12,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:14,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:17,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:20,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:22,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:25,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:27,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:32,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:34,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:39,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:41,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:44,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:46,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:48,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:50,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:53,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:55,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:24:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:24:59,509 INFO L93 Difference]: Finished difference Result 22502 states and 32921 transitions. [2022-07-12 11:24:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 11:24:59,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2022-07-12 11:24:59,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:24:59,548 INFO L225 Difference]: With dead ends: 22502 [2022-07-12 11:24:59,549 INFO L226 Difference]: Without dead ends: 11601 [2022-07-12 11:24:59,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:24:59,571 INFO L413 NwaCegarLoop]: 6897 mSDtfsCounter, 5579 mSDsluCounter, 19133 mSDsCounter, 0 mSdLazyCounter, 17680 mSolverCounterSat, 2742 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6126 SdHoareTripleChecker+Valid, 26030 SdHoareTripleChecker+Invalid, 20445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2742 IncrementalHoareTripleChecker+Valid, 17680 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:24:59,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6126 Valid, 26030 Invalid, 20445 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2742 Valid, 17680 Invalid, 23 Unknown, 0 Unchecked, 73.1s Time] [2022-07-12 11:24:59,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11601 states. [2022-07-12 11:25:00,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11601 to 10907. [2022-07-12 11:25:00,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10907 states, 8041 states have (on average 1.359283671185176) internal successors, (10930), 8364 states have internal predecessors, (10930), 2482 states have call successors, (2482), 383 states have call predecessors, (2482), 383 states have return successors, (2485), 2399 states have call predecessors, (2485), 2480 states have call successors, (2485) [2022-07-12 11:25:00,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10907 states to 10907 states and 15897 transitions. [2022-07-12 11:25:00,068 INFO L78 Accepts]: Start accepts. Automaton has 10907 states and 15897 transitions. Word has length 73 [2022-07-12 11:25:00,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:25:00,070 INFO L495 AbstractCegarLoop]: Abstraction has 10907 states and 15897 transitions. [2022-07-12 11:25:00,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 11:25:00,070 INFO L276 IsEmpty]: Start isEmpty. Operand 10907 states and 15897 transitions. [2022-07-12 11:25:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 11:25:00,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:25:00,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:25:00,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 11:25:00,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:25:00,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:25:00,077 INFO L85 PathProgramCache]: Analyzing trace with hash -913838545, now seen corresponding path program 1 times [2022-07-12 11:25:00,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:25:00,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8276307] [2022-07-12 11:25:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:25:00,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:25:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:25:00,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:25:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:25:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:25:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:25:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 11:25:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:25:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:25:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:25:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:25:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:25:00,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:25:00,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:25:00,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8276307] [2022-07-12 11:25:00,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8276307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:25:00,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:25:00,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:25:00,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828006644] [2022-07-12 11:25:00,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:25:00,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:25:00,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:25:00,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:25:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:25:00,327 INFO L87 Difference]: Start difference. First operand 10907 states and 15897 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 11:25:02,391 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 []