./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.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 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 22:27:18,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 22:27:18,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 22:27:18,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 22:27:18,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 22:27:18,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 22:27:18,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 22:27:18,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 22:27:18,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 22:27:18,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 22:27:18,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 22:27:18,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 22:27:18,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 22:27:18,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 22:27:18,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 22:27:18,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 22:27:18,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 22:27:18,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 22:27:18,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 22:27:18,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 22:27:18,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 22:27:18,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 22:27:18,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 22:27:18,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 22:27:18,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 22:27:18,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 22:27:18,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 22:27:18,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 22:27:18,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 22:27:18,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 22:27:18,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 22:27:18,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 22:27:18,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 22:27:18,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 22:27:18,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 22:27:18,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 22:27:18,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 22:27:18,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 22:27:18,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 22:27:18,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 22:27:18,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 22:27:18,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 22:27:18,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 22:27:18,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 22:27:18,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 22:27:18,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 22:27:18,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 22:27:18,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 22:27:18,466 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 22:27:18,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 22:27:18,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 22:27:18,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 22:27:18,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 22:27:18,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 22:27:18,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 22:27:18,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 22:27:18,469 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 22:27:18,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 22:27:18,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 22:27:18,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 22:27:18,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 22:27:18,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:27:18,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 22:27:18,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 22:27:18,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 22:27:18,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 22:27:18,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 22:27:18,471 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 22:27:18,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 22:27:18,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 22:27:18,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 22:27:18,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 [2021-11-22 22:27:18,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 22:27:18,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 22:27:18,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 22:27:18,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 22:27:18,693 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 22:27:18,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-22 22:27:18,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70f61eff3/9040a01822954297b53d8f9808e5a9ec/FLAG344b5c938 [2021-11-22 22:27:19,380 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 22:27:19,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-22 22:27:19,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70f61eff3/9040a01822954297b53d8f9808e5a9ec/FLAG344b5c938 [2021-11-22 22:27:19,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70f61eff3/9040a01822954297b53d8f9808e5a9ec [2021-11-22 22:27:19,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 22:27:19,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 22:27:19,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 22:27:19,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 22:27:19,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 22:27:19,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:27:19" (1/1) ... [2021-11-22 22:27:19,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476f0514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:19, skipping insertion in model container [2021-11-22 22:27:19,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:27:19" (1/1) ... [2021-11-22 22:27:19,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 22:27:19,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 22:27:21,087 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-22 22:27:21,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:27:21,243 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 22:27:21,579 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-22 22:27:21,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:27:21,681 INFO L208 MainTranslator]: Completed translation [2021-11-22 22:27:21,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21 WrapperNode [2021-11-22 22:27:21,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 22:27:21,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 22:27:21,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 22:27:21,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 22:27:21,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:21,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:23,833 INFO L137 Inliner]: procedures = 389, calls = 2919, calls flagged for inlining = 869, calls inlined = 5919, statements flattened = 96337 [2021-11-22 22:27:23,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 22:27:23,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 22:27:23,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 22:27:23,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 22:27:23,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:23,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:24,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:24,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:26,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:26,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:26,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:27,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 22:27:27,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 22:27:27,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 22:27:27,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 22:27:27,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (1/1) ... [2021-11-22 22:27:27,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:27:27,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 22:27:27,504 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) [2021-11-22 22:27:27,533 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 [2021-11-22 22:27:27,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 22:27:27,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 22:27:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2021-11-22 22:27:27,548 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2021-11-22 22:27:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 22:27:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 22:27:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-22 22:27:27,548 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-22 22:27:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 22:27:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 22:27:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 22:27:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 22:27:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 22:27:27,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 22:27:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2021-11-22 22:27:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2021-11-22 22:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 22:27:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 22:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-22 22:27:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-22 22:27:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-22 22:27:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 22:27:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 22:27:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2021-11-22 22:27:27,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2021-11-22 22:27:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 22:27:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 22:27:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 22:27:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2021-11-22 22:27:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2021-11-22 22:27:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 22:27:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2021-11-22 22:27:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2021-11-22 22:27:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 22:27:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-11-22 22:27:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-11-22 22:27:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-22 22:27:28,159 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 22:27:28,161 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 22:28:58,692 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 22:28:58,750 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 22:28:58,750 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 22:28:58,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:28:58 BoogieIcfgContainer [2021-11-22 22:28:58,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 22:28:58,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 22:28:58,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 22:28:58,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 22:28:58,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:27:19" (1/3) ... [2021-11-22 22:28:58,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7ebb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:28:58, skipping insertion in model container [2021-11-22 22:28:58,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:27:21" (2/3) ... [2021-11-22 22:28:58,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7ebb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:28:58, skipping insertion in model container [2021-11-22 22:28:58,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:28:58" (3/3) ... [2021-11-22 22:28:58,771 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-22 22:28:58,775 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 22:28:58,775 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-22 22:28:58,854 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 22:28:58,860 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 [2021-11-22 22:28:58,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-22 22:28:59,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 15863 states, 15659 states have (on average 1.4255699597675457) internal successors, (22323), 15710 states have internal predecessors, (22323), 184 states have call successors, (184), 9 states have call predecessors, (184), 9 states have return successors, (184), 184 states have call predecessors, (184), 184 states have call successors, (184) [2021-11-22 22:28:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 22:28:59,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:28:59,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:28:59,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:28:59,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:28:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash -691341679, now seen corresponding path program 1 times [2021-11-22 22:28:59,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:28:59,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785496595] [2021-11-22 22:28:59,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:28:59,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:28:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:28:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:28:59,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:28:59,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785496595] [2021-11-22 22:28:59,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785496595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:28:59,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:28:59,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:28:59,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300674591] [2021-11-22 22:28:59,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:28:59,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:28:59,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:28:59,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:28:59,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:28:59,681 INFO L87 Difference]: Start difference. First operand has 15863 states, 15659 states have (on average 1.4255699597675457) internal successors, (22323), 15710 states have internal predecessors, (22323), 184 states have call successors, (184), 9 states have call predecessors, (184), 9 states have return successors, (184), 184 states have call predecessors, (184), 184 states have call successors, (184) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:00,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:00,761 INFO L93 Difference]: Finished difference Result 47505 states and 68340 transitions. [2021-11-22 22:29:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:00,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-22 22:29:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:00,949 INFO L225 Difference]: With dead ends: 47505 [2021-11-22 22:29:00,950 INFO L226 Difference]: Without dead ends: 31641 [2021-11-22 22:29:01,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:01,014 INFO L933 BasicCegarLoop]: 22759 mSDtfsCounter, 22521 mSDsluCounter, 22546 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22521 SdHoareTripleChecker+Valid, 45305 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:01,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22521 Valid, 45305 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31641 states. [2021-11-22 22:29:01,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31641 to 31637. [2021-11-22 22:29:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31637 states, 31241 states have (on average 1.4193527735987965) internal successors, (44342), 31332 states have internal predecessors, (44342), 368 states have call successors, (368), 18 states have call predecessors, (368), 18 states have return successors, (368), 368 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-22 22:29:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31637 states to 31637 states and 45078 transitions. [2021-11-22 22:29:01,954 INFO L78 Accepts]: Start accepts. Automaton has 31637 states and 45078 transitions. Word has length 15 [2021-11-22 22:29:01,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:01,955 INFO L470 AbstractCegarLoop]: Abstraction has 31637 states and 45078 transitions. [2021-11-22 22:29:01,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:01,956 INFO L276 IsEmpty]: Start isEmpty. Operand 31637 states and 45078 transitions. [2021-11-22 22:29:01,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 22:29:01,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:01,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:29:01,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 22:29:01,958 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:01,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -801400991, now seen corresponding path program 1 times [2021-11-22 22:29:01,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:01,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707564666] [2021-11-22 22:29:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:01,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:02,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:29:02,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:02,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707564666] [2021-11-22 22:29:02,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707564666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:02,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:02,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 22:29:02,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605535393] [2021-11-22 22:29:02,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:02,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:02,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:02,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:02,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:02,380 INFO L87 Difference]: Start difference. First operand 31637 states and 45078 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:03,899 INFO L93 Difference]: Finished difference Result 94882 states and 135200 transitions. [2021-11-22 22:29:03,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:03,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-22 22:29:03,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:04,128 INFO L225 Difference]: With dead ends: 94882 [2021-11-22 22:29:04,129 INFO L226 Difference]: Without dead ends: 63248 [2021-11-22 22:29:04,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:04,210 INFO L933 BasicCegarLoop]: 22756 mSDtfsCounter, 22555 mSDsluCounter, 22543 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22555 SdHoareTripleChecker+Valid, 45299 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:04,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22555 Valid, 45299 Invalid, 9 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63248 states. [2021-11-22 22:29:05,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63248 to 63219. [2021-11-22 22:29:06,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63219 states, 62437 states have (on average 1.4194307862325224) internal successors, (88625), 62610 states have internal predecessors, (88625), 736 states have call successors, (736), 36 states have call predecessors, (736), 36 states have return successors, (736), 736 states have call predecessors, (736), 736 states have call successors, (736) [2021-11-22 22:29:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63219 states to 63219 states and 90097 transitions. [2021-11-22 22:29:06,241 INFO L78 Accepts]: Start accepts. Automaton has 63219 states and 90097 transitions. Word has length 18 [2021-11-22 22:29:06,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:06,241 INFO L470 AbstractCegarLoop]: Abstraction has 63219 states and 90097 transitions. [2021-11-22 22:29:06,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 63219 states and 90097 transitions. [2021-11-22 22:29:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 22:29:06,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:06,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:29:06,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 22:29:06,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:06,248 INFO L85 PathProgramCache]: Analyzing trace with hash -269015098, now seen corresponding path program 1 times [2021-11-22 22:29:06,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:06,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081720143] [2021-11-22 22:29:06,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:06,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:29:06,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:06,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081720143] [2021-11-22 22:29:06,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081720143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:06,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:06,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:29:06,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907442419] [2021-11-22 22:29:06,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:06,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:29:06,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:06,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:29:06,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:29:06,394 INFO L87 Difference]: Start difference. First operand 63219 states and 90097 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:08,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:08,995 INFO L93 Difference]: Finished difference Result 110647 states and 157687 transitions. [2021-11-22 22:29:08,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 22:29:08,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-22 22:29:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:09,150 INFO L225 Difference]: With dead ends: 110647 [2021-11-22 22:29:09,150 INFO L226 Difference]: Without dead ends: 47431 [2021-11-22 22:29:09,250 INFO L932 BasicCegarLoop]: 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 [2021-11-22 22:29:09,254 INFO L933 BasicCegarLoop]: 44747 mSDtfsCounter, 44791 mSDsluCounter, 22697 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44791 SdHoareTripleChecker+Valid, 67444 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:09,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44791 Valid, 67444 Invalid, 352 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [175 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 22:29:09,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47431 states. [2021-11-22 22:29:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47431 to 47431. [2021-11-22 22:29:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47431 states, 46842 states have (on average 1.4193458861705308) internal successors, (66485), 46974 states have internal predecessors, (66485), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 552 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-22 22:29:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47431 states to 47431 states and 67589 transitions. [2021-11-22 22:29:11,050 INFO L78 Accepts]: Start accepts. Automaton has 47431 states and 67589 transitions. Word has length 20 [2021-11-22 22:29:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:11,051 INFO L470 AbstractCegarLoop]: Abstraction has 47431 states and 67589 transitions. [2021-11-22 22:29:11,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 47431 states and 67589 transitions. [2021-11-22 22:29:11,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 22:29:11,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:11,054 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:29:11,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 22:29:11,055 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:11,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:11,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1893549557, now seen corresponding path program 1 times [2021-11-22 22:29:11,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:11,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45185960] [2021-11-22 22:29:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:11,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:11,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 22:29:11,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:11,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45185960] [2021-11-22 22:29:11,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45185960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:11,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:11,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:11,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518070511] [2021-11-22 22:29:11,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:11,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:11,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:11,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:11,189 INFO L87 Difference]: Start difference. First operand 47431 states and 67589 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:12,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:12,249 INFO L93 Difference]: Finished difference Result 47431 states and 67589 transitions. [2021-11-22 22:29:12,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:12,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-22 22:29:12,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:12,373 INFO L225 Difference]: With dead ends: 47431 [2021-11-22 22:29:12,374 INFO L226 Difference]: Without dead ends: 47427 [2021-11-22 22:29:12,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:12,397 INFO L933 BasicCegarLoop]: 22566 mSDtfsCounter, 22528 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22528 SdHoareTripleChecker+Valid, 22579 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:12,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22528 Valid, 22579 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:12,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47427 states. [2021-11-22 22:29:13,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47427 to 47427. [2021-11-22 22:29:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47427 states, 46840 states have (on average 1.419278394534586) internal successors, (66479), 46970 states have internal predecessors, (66479), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 552 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-22 22:29:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47427 states to 47427 states and 67583 transitions. [2021-11-22 22:29:13,937 INFO L78 Accepts]: Start accepts. Automaton has 47427 states and 67583 transitions. Word has length 30 [2021-11-22 22:29:13,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:13,937 INFO L470 AbstractCegarLoop]: Abstraction has 47427 states and 67583 transitions. [2021-11-22 22:29:13,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:13,938 INFO L276 IsEmpty]: Start isEmpty. Operand 47427 states and 67583 transitions. [2021-11-22 22:29:13,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 22:29:13,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:13,939 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:29:13,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 22:29:13,940 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:13,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:13,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1429453692, now seen corresponding path program 1 times [2021-11-22 22:29:13,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:13,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252371983] [2021-11-22 22:29:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:13,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 22:29:14,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:14,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252371983] [2021-11-22 22:29:14,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252371983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:14,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:14,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:14,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864194796] [2021-11-22 22:29:14,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:14,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:14,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:14,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:14,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:14,081 INFO L87 Difference]: Start difference. First operand 47427 states and 67583 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:15,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:15,157 INFO L93 Difference]: Finished difference Result 47427 states and 67583 transitions. [2021-11-22 22:29:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:15,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-22 22:29:15,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:15,249 INFO L225 Difference]: With dead ends: 47427 [2021-11-22 22:29:15,250 INFO L226 Difference]: Without dead ends: 47425 [2021-11-22 22:29:15,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:15,267 INFO L933 BasicCegarLoop]: 22565 mSDtfsCounter, 22542 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22542 SdHoareTripleChecker+Valid, 22565 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:15,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22542 Valid, 22565 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47425 states. [2021-11-22 22:29:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47425 to 47425. [2021-11-22 22:29:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47425 states, 46839 states have (on average 1.419265996285147) internal successors, (66477), 46968 states have internal predecessors, (66477), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 552 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-22 22:29:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47425 states to 47425 states and 67581 transitions. [2021-11-22 22:29:16,574 INFO L78 Accepts]: Start accepts. Automaton has 47425 states and 67581 transitions. Word has length 31 [2021-11-22 22:29:16,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:16,575 INFO L470 AbstractCegarLoop]: Abstraction has 47425 states and 67581 transitions. [2021-11-22 22:29:16,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 47425 states and 67581 transitions. [2021-11-22 22:29:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 22:29:16,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:16,578 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-22 22:29:16,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 22:29:16,578 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:16,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:16,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1363339296, now seen corresponding path program 1 times [2021-11-22 22:29:16,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:16,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275643501] [2021-11-22 22:29:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:16,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 22:29:16,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:16,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275643501] [2021-11-22 22:29:16,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275643501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:16,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:16,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:16,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456290687] [2021-11-22 22:29:16,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:16,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:16,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:16,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:16,906 INFO L87 Difference]: Start difference. First operand 47425 states and 67581 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:17,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:17,727 INFO L93 Difference]: Finished difference Result 47425 states and 67581 transitions. [2021-11-22 22:29:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:17,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-22 22:29:17,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:17,831 INFO L225 Difference]: With dead ends: 47425 [2021-11-22 22:29:17,831 INFO L226 Difference]: Without dead ends: 47423 [2021-11-22 22:29:17,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:17,857 INFO L933 BasicCegarLoop]: 22563 mSDtfsCounter, 22539 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22539 SdHoareTripleChecker+Valid, 22563 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:17,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22539 Valid, 22563 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47423 states. [2021-11-22 22:29:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47423 to 47423. [2021-11-22 22:29:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47423 states, 46838 states have (on average 1.4192535975062983) internal successors, (66475), 46966 states have internal predecessors, (66475), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 552 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-22 22:29:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47423 states to 47423 states and 67579 transitions. [2021-11-22 22:29:19,189 INFO L78 Accepts]: Start accepts. Automaton has 47423 states and 67579 transitions. Word has length 32 [2021-11-22 22:29:19,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:19,189 INFO L470 AbstractCegarLoop]: Abstraction has 47423 states and 67579 transitions. [2021-11-22 22:29:19,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:19,190 INFO L276 IsEmpty]: Start isEmpty. Operand 47423 states and 67579 transitions. [2021-11-22 22:29:19,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 22:29:19,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:19,191 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-22 22:29:19,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 22:29:19,192 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash 686206991, now seen corresponding path program 1 times [2021-11-22 22:29:19,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:19,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746670977] [2021-11-22 22:29:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:19,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 22:29:19,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:19,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746670977] [2021-11-22 22:29:19,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746670977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:19,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:19,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:19,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647354114] [2021-11-22 22:29:19,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:19,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:19,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:19,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:19,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:19,334 INFO L87 Difference]: Start difference. First operand 47423 states and 67579 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:20,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:20,348 INFO L93 Difference]: Finished difference Result 47423 states and 67579 transitions. [2021-11-22 22:29:20,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:20,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-22 22:29:20,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:20,426 INFO L225 Difference]: With dead ends: 47423 [2021-11-22 22:29:20,426 INFO L226 Difference]: Without dead ends: 47421 [2021-11-22 22:29:20,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:20,442 INFO L933 BasicCegarLoop]: 22561 mSDtfsCounter, 22536 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22536 SdHoareTripleChecker+Valid, 22561 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:20,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22536 Valid, 22561 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:20,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47421 states. [2021-11-22 22:29:21,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47421 to 47421. [2021-11-22 22:29:21,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47421 states, 46837 states have (on average 1.4192411981980058) internal successors, (66473), 46964 states have internal predecessors, (66473), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 552 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-22 22:29:21,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47421 states to 47421 states and 67577 transitions. [2021-11-22 22:29:21,741 INFO L78 Accepts]: Start accepts. Automaton has 47421 states and 67577 transitions. Word has length 33 [2021-11-22 22:29:21,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:21,741 INFO L470 AbstractCegarLoop]: Abstraction has 47421 states and 67577 transitions. [2021-11-22 22:29:21,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:21,742 INFO L276 IsEmpty]: Start isEmpty. Operand 47421 states and 67577 transitions. [2021-11-22 22:29:21,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 22:29:21,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:21,743 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-22 22:29:21,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 22:29:21,744 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:21,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash -202367541, now seen corresponding path program 1 times [2021-11-22 22:29:21,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:21,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971906697] [2021-11-22 22:29:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:21,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 22:29:21,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:21,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971906697] [2021-11-22 22:29:21,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971906697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:21,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:21,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:21,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698607723] [2021-11-22 22:29:21,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:21,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:21,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:21,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:21,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:21,845 INFO L87 Difference]: Start difference. First operand 47421 states and 67577 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:22,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:22,810 INFO L93 Difference]: Finished difference Result 47421 states and 67577 transitions. [2021-11-22 22:29:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:22,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-22 22:29:22,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:22,893 INFO L225 Difference]: With dead ends: 47421 [2021-11-22 22:29:22,894 INFO L226 Difference]: Without dead ends: 47419 [2021-11-22 22:29:22,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:22,911 INFO L933 BasicCegarLoop]: 22559 mSDtfsCounter, 22533 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22533 SdHoareTripleChecker+Valid, 22559 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:22,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22533 Valid, 22559 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47419 states. [2021-11-22 22:29:24,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47419 to 47419. [2021-11-22 22:29:24,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47419 states, 46836 states have (on average 1.4192287983602356) internal successors, (66471), 46962 states have internal predecessors, (66471), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 552 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-22 22:29:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47419 states to 47419 states and 67575 transitions. [2021-11-22 22:29:24,139 INFO L78 Accepts]: Start accepts. Automaton has 47419 states and 67575 transitions. Word has length 34 [2021-11-22 22:29:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:24,139 INFO L470 AbstractCegarLoop]: Abstraction has 47419 states and 67575 transitions. [2021-11-22 22:29:24,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 47419 states and 67575 transitions. [2021-11-22 22:29:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 22:29:24,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:24,141 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-22 22:29:24,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 22:29:24,142 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1978374246, now seen corresponding path program 1 times [2021-11-22 22:29:24,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:24,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585106067] [2021-11-22 22:29:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:24,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 22:29:24,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:24,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585106067] [2021-11-22 22:29:24,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585106067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:24,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:24,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:24,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223533916] [2021-11-22 22:29:24,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:24,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:24,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:24,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:24,261 INFO L87 Difference]: Start difference. First operand 47419 states and 67575 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:25,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:25,558 INFO L93 Difference]: Finished difference Result 47419 states and 67575 transitions. [2021-11-22 22:29:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-22 22:29:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:25,628 INFO L225 Difference]: With dead ends: 47419 [2021-11-22 22:29:25,629 INFO L226 Difference]: Without dead ends: 47417 [2021-11-22 22:29:25,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:25,641 INFO L933 BasicCegarLoop]: 22557 mSDtfsCounter, 22530 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22530 SdHoareTripleChecker+Valid, 22557 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:25,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22530 Valid, 22557 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:29:25,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47417 states. [2021-11-22 22:29:26,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47417 to 47417. [2021-11-22 22:29:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47417 states, 46835 states have (on average 1.419216397992954) internal successors, (66469), 46960 states have internal predecessors, (66469), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 552 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-22 22:29:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47417 states to 47417 states and 67573 transitions. [2021-11-22 22:29:26,890 INFO L78 Accepts]: Start accepts. Automaton has 47417 states and 67573 transitions. Word has length 35 [2021-11-22 22:29:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:26,890 INFO L470 AbstractCegarLoop]: Abstraction has 47417 states and 67573 transitions. [2021-11-22 22:29:26,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 22:29:26,890 INFO L276 IsEmpty]: Start isEmpty. Operand 47417 states and 67573 transitions. [2021-11-22 22:29:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-22 22:29:26,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:26,892 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-22 22:29:26,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 22:29:26,892 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 22:29:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1200007242, now seen corresponding path program 1 times [2021-11-22 22:29:26,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:26,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009554325] [2021-11-22 22:29:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:26,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 22:29:27,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:27,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009554325] [2021-11-22 22:29:27,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009554325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:27,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:27,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:27,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521223854] [2021-11-22 22:29:27,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:27,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:27,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:27,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:27,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:27,032 INFO L87 Difference]: Start difference. First operand 47417 states and 67573 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)