./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.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 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:04:51,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:04:51,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:04:51,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:04:51,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:04:51,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:04:51,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:04:51,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:04:51,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:04:51,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:04:51,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:04:51,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:04:51,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:04:51,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:04:51,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:04:51,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:04:51,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:04:51,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:04:51,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:04:51,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:04:51,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:04:51,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:04:51,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:04:51,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:04:51,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:04:51,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:04:51,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:04:51,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:04:51,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:04:51,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:04:51,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:04:51,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:04:51,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:04:51,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:04:51,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:04:51,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:04:51,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:04:51,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:04:51,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:04:51,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:04:51,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:04:51,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:04:51,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:04:51,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:04:51,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:04:51,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:04:51,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:04:51,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:04:51,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:04:51,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:04:51,449 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:04:51,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:04:51,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:04:51,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:04:51,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:04:51,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:04:51,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:04:51,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:04:51,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:04:51,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:04:51,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:04:51,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:04:51,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:04:51,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:04:51,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:04:51,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:04:51,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:04:51,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:04:51,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:04:51,452 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:04:51,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:04:51,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:04:51,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:04:51,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-12-22 14:04:51,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:04:51,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:04:51,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:04:51,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:04:51,667 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:04:51,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-22 14:04:51,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20164639c/cb856beeaa3f4588bca2b0eb54bc5cdd/FLAGe018affa7 [2021-12-22 14:04:52,362 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:04:52,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-22 14:04:52,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20164639c/cb856beeaa3f4588bca2b0eb54bc5cdd/FLAGe018affa7 [2021-12-22 14:04:52,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20164639c/cb856beeaa3f4588bca2b0eb54bc5cdd [2021-12-22 14:04:52,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:04:52,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:04:52,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:04:52,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:04:52,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:04:52,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:04:52" (1/1) ... [2021-12-22 14:04:52,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7816223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:52, skipping insertion in model container [2021-12-22 14:04:52,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:04:52" (1/1) ... [2021-12-22 14:04:52,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:04:52,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:04:53,758 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-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-22 14:04:54,063 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:54,066 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:54,066 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:54,070 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:54,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:04:54,733 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:04:54,869 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-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-22 14:04:54,942 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:54,943 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:54,944 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:54,945 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-22 14:04:55,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:04:55,242 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:04:55,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55 WrapperNode [2021-12-22 14:04:55,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:04:55,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:04:55,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:04:55,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:04:55,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,504 INFO L137 Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 152, calls inlined = 32, statements flattened = 4275 [2021-12-22 14:04:55,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:04:55,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:04:55,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:04:55,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:04:55,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:04:55,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:04:55,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:04:55,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:04:55,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (1/1) ... [2021-12-22 14:04:55,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:04:55,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:55,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:04:55,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:04:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-22 14:04:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-22 14:04:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:04:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:04:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:04:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:04:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:04:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-22 14:04:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-22 14:04:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:04:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:04:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:04:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:04:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-22 14:04:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-22 14:04:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-12-22 14:04:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-12-22 14:04:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-22 14:04:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-22 14:04:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:04:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:04:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-22 14:04:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-22 14:04:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:04:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:04:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode [2021-12-22 14:04:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode [2021-12-22 14:04:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:04:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:04:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:04:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:04:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure if_ioctl [2021-12-22 14:04:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure if_ioctl [2021-12-22 14:04:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-22 14:04:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-22 14:04:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:04:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:04:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:04:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:04:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-12-22 14:04:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-12-22 14:04:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:04:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:04:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:04:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:04:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure if_config [2021-12-22 14:04:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure if_config [2021-12-22 14:04:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:04:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:04:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-12-22 14:04:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-12-22 14:04:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-12-22 14:04:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-12-22 14:04:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure if_lock [2021-12-22 14:04:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure if_lock [2021-12-22 14:04:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:04:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:04:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-12-22 14:04:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-12-22 14:04:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 14:04:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 14:04:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:04:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:04:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:04:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-22 14:04:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-22 14:04:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-22 14:04:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-22 14:04:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:04:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:04:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:04:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:04:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:04:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-22 14:04:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:04:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 14:04:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 14:04:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:04:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:04:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:04:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:04:55,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:04:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-22 14:04:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-22 14:04:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-12-22 14:04:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-12-22 14:04:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-22 14:04:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-22 14:04:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-12-22 14:04:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-12-22 14:04:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:04:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:04:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-12-22 14:04:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-12-22 14:04:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:04:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:04:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-12-22 14:04:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-12-22 14:04:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:04:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 14:04:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 14:04:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:04:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:04:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:04:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:04:56,132 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:04:56,134 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:04:56,429 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-22 14:04:56,429 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-22 14:04:56,450 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:56,452 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-12-22 14:04:56,670 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-22 14:04:56,671 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-22 14:04:56,759 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-22 14:04:56,759 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-22 14:04:56,759 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012-1: ~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset; [2021-12-22 14:04:56,759 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-12-22 14:04:56,761 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:56,761 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:56,762 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:56,828 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-22 14:04:56,828 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-22 14:04:56,828 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-12-22 14:04:56,828 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-12-22 14:04:56,828 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-12-22 14:04:56,828 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-12-22 14:04:56,969 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:05:45,501 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-12-22 14:05:45,501 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-12-22 14:05:45,513 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:05:45,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:05:45,520 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-22 14:05:45,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:05:45 BoogieIcfgContainer [2021-12-22 14:05:45,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:05:45,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:05:45,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:05:45,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:05:45,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:04:52" (1/3) ... [2021-12-22 14:05:45,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8efa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:05:45, skipping insertion in model container [2021-12-22 14:05:45,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:55" (2/3) ... [2021-12-22 14:05:45,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8efa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:05:45, skipping insertion in model container [2021-12-22 14:05:45,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:05:45" (3/3) ... [2021-12-22 14:05:45,528 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-22 14:05:45,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:05:45,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:05:45,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:05:45,566 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:05:45,566 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:05:45,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2021-12-22 14:05:45,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-22 14:05:45,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:45,588 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:45,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:45,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1164007444, now seen corresponding path program 1 times [2021-12-22 14:05:45,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:45,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845702818] [2021-12-22 14:05:45,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:45,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:05:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:05:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 14:05:46,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:46,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845702818] [2021-12-22 14:05:46,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845702818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:46,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:46,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:05:46,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724150560] [2021-12-22 14:05:46,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:46,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:05:46,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:46,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:05:46,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:05:46,386 INFO L87 Difference]: Start difference. First operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-22 14:05:47,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:48,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:48,990 INFO L93 Difference]: Finished difference Result 2166 states and 3205 transitions. [2021-12-22 14:05:49,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:05:49,004 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-12-22 14:05:49,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:49,055 INFO L225 Difference]: With dead ends: 2166 [2021-12-22 14:05:49,055 INFO L226 Difference]: Without dead ends: 1501 [2021-12-22 14:05:49,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:05:49,081 INFO L933 BasicCegarLoop]: 1031 mSDtfsCounter, 1605 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:49,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1695 Valid, 2184 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-22 14:05:49,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-12-22 14:05:49,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1392. [2021-12-22 14:05:49,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1063 states have (on average 1.3904045155221072) internal successors, (1478), 1087 states have internal predecessors, (1478), 237 states have call successors, (237), 85 states have call predecessors, (237), 91 states have return successors, (282), 239 states have call predecessors, (282), 235 states have call successors, (282) [2021-12-22 14:05:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1997 transitions. [2021-12-22 14:05:49,244 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1997 transitions. Word has length 22 [2021-12-22 14:05:49,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:49,244 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1997 transitions. [2021-12-22 14:05:49,244 INFO L471 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-22 14:05:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1997 transitions. [2021-12-22 14:05:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-22 14:05:49,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:49,248 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:49,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:05:49,248 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:49,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:49,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1727764396, now seen corresponding path program 1 times [2021-12-22 14:05:49,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:49,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892764282] [2021-12-22 14:05:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:49,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:49,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:05:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:49,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:05:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:05:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 14:05:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 14:05:49,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:49,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892764282] [2021-12-22 14:05:49,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892764282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:49,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:49,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:05:49,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756557906] [2021-12-22 14:05:49,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:49,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:05:49,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:49,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:05:49,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:05:49,591 INFO L87 Difference]: Start difference. First operand 1392 states and 1997 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-22 14:05:51,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:52,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:52,351 INFO L93 Difference]: Finished difference Result 3053 states and 4444 transitions. [2021-12-22 14:05:52,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:05:52,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2021-12-22 14:05:52,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:52,360 INFO L225 Difference]: With dead ends: 3053 [2021-12-22 14:05:52,360 INFO L226 Difference]: Without dead ends: 1667 [2021-12-22 14:05:52,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:05:52,366 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 483 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:52,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2039 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-22 14:05:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-12-22 14:05:52,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1561. [2021-12-22 14:05:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1196 states have (on average 1.4030100334448161) internal successors, (1678), 1226 states have internal predecessors, (1678), 273 states have call successors, (273), 85 states have call predecessors, (273), 91 states have return successors, (327), 273 states have call predecessors, (327), 271 states have call successors, (327) [2021-12-22 14:05:52,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2278 transitions. [2021-12-22 14:05:52,411 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2278 transitions. Word has length 42 [2021-12-22 14:05:52,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:52,411 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 2278 transitions. [2021-12-22 14:05:52,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-22 14:05:52,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2278 transitions. [2021-12-22 14:05:52,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-22 14:05:52,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:52,414 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:52,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:05:52,415 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:52,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:52,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2016306839, now seen corresponding path program 1 times [2021-12-22 14:05:52,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:52,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15099435] [2021-12-22 14:05:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:52,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:05:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:05:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:52,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:05:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:05:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 14:05:52,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:52,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15099435] [2021-12-22 14:05:52,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15099435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:52,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:52,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 14:05:52,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449929877] [2021-12-22 14:05:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:52,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:05:52,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:05:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:05:52,736 INFO L87 Difference]: Start difference. First operand 1561 states and 2278 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-22 14:05:55,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:56,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:56,650 INFO L93 Difference]: Finished difference Result 3311 states and 4968 transitions. [2021-12-22 14:05:56,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 14:05:56,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-12-22 14:05:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:56,659 INFO L225 Difference]: With dead ends: 3311 [2021-12-22 14:05:56,659 INFO L226 Difference]: Without dead ends: 1757 [2021-12-22 14:05:56,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:05:56,665 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 1018 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:56,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 3949 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-22 14:05:56,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2021-12-22 14:05:56,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1543. [2021-12-22 14:05:56,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1170 states have (on average 1.3974358974358974) internal successors, (1635), 1199 states have internal predecessors, (1635), 278 states have call successors, (278), 85 states have call predecessors, (278), 94 states have return successors, (337), 284 states have call predecessors, (337), 276 states have call successors, (337) [2021-12-22 14:05:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2250 transitions. [2021-12-22 14:05:56,747 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2250 transitions. Word has length 47 [2021-12-22 14:05:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:56,747 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2250 transitions. [2021-12-22 14:05:56,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-22 14:05:56,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2250 transitions. [2021-12-22 14:05:56,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-22 14:05:56,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:56,749 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:56,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:05:56,749 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:56,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:56,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2124098365, now seen corresponding path program 1 times [2021-12-22 14:05:56,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:56,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983790219] [2021-12-22 14:05:56,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:56,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:57,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:05:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:57,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:05:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:05:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:05:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 14:05:57,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:57,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983790219] [2021-12-22 14:05:57,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983790219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:57,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:57,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:05:57,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944722534] [2021-12-22 14:05:57,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:57,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:05:57,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:57,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:05:57,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:05:57,135 INFO L87 Difference]: Start difference. First operand 1543 states and 2250 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-22 14:05:58,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:59,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:06:02,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:02,416 INFO L93 Difference]: Finished difference Result 2705 states and 4086 transitions. [2021-12-22 14:06:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 14:06:02,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2021-12-22 14:06:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:02,426 INFO L225 Difference]: With dead ends: 2705 [2021-12-22 14:06:02,426 INFO L226 Difference]: Without dead ends: 1879 [2021-12-22 14:06:02,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:02,430 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 1074 mSDsluCounter, 3109 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:02,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 3920 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-22 14:06:02,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2021-12-22 14:06:02,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1543. [2021-12-22 14:06:02,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1170 states have (on average 1.3965811965811965) internal successors, (1634), 1199 states have internal predecessors, (1634), 278 states have call successors, (278), 85 states have call predecessors, (278), 94 states have return successors, (337), 284 states have call predecessors, (337), 276 states have call successors, (337) [2021-12-22 14:06:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2249 transitions. [2021-12-22 14:06:02,478 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2249 transitions. Word has length 46 [2021-12-22 14:06:02,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:02,478 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2249 transitions. [2021-12-22 14:06:02,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-22 14:06:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2249 transitions. [2021-12-22 14:06:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-22 14:06:02,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:02,480 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:06:02,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:06:02,481 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:02,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:02,481 INFO L85 PathProgramCache]: Analyzing trace with hash 436135357, now seen corresponding path program 1 times [2021-12-22 14:06:02,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:02,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393236225] [2021-12-22 14:06:02,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:02,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:02,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:06:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:06:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 14:06:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 14:06:02,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:02,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393236225] [2021-12-22 14:06:02,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393236225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:02,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:02,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:06:02,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099437707] [2021-12-22 14:06:02,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:02,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:06:02,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:02,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:06:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:06:02,810 INFO L87 Difference]: Start difference. First operand 1543 states and 2249 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)