./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.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 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:04:46,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:04:46,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:04:46,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:04:46,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:04:46,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:04:46,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:04:46,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:04:46,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:04:46,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:04:46,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:04:46,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:04:46,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:04:46,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:04:46,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:04:46,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:04:46,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:04:46,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:04:46,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:04:46,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:04:46,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:04:46,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:04:46,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:04:46,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:04:46,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:04:46,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:04:46,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:04:46,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:04:46,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:04:46,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:04:46,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:04:46,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:04:46,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:04:46,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:04:46,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:04:46,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:04:46,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:04:46,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:04:46,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:04:46,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:04:46,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:04:46,662 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:04:46,684 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:04:46,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:04:46,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:04:46,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:04:46,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:04:46,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:04:46,691 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:04:46,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:04:46,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:04:46,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:04:46,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:04:46,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:04:46,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:04:46,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:04:46,693 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:04:46,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:04:46,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:04:46,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:04:46,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:04:46,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:04:46,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:04:46,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:04:46,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:04:46,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:04:46,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:04:46,694 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:04:46,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:04:46,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:04:46,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:04:46,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2021-11-07 14:04:46,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:04:46,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:04:46,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:04:46,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:04:46,894 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:04:46,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:04:46,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ccc1540f/2753167ca08346899641b7dd152bb880/FLAGb8844e50b [2021-11-07 14:04:47,514 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:04:47,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:04:47,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ccc1540f/2753167ca08346899641b7dd152bb880/FLAGb8844e50b [2021-11-07 14:04:47,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ccc1540f/2753167ca08346899641b7dd152bb880 [2021-11-07 14:04:47,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:04:47,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:04:47,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:04:47,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:04:47,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:04:47,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:47" (1/1) ... [2021-11-07 14:04:47,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1f9f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:47, skipping insertion in model container [2021-11-07 14:04:47,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:47" (1/1) ... [2021-11-07 14:04:47,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:04:48,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:04:49,324 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2021-11-07 14:04:49,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:04:49,411 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:04:49,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2021-11-07 14:04:49,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:04:49,758 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:04:49,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49 WrapperNode [2021-11-07 14:04:49,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:04:49,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:04:49,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:04:49,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:04:49,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:49,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:51,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:04:51,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:04:51,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:04:51,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:04:51,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:51,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:51,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:51,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:52,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:52,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:53,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:53,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:04:53,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:04:53,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:04:53,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:04:53,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (1/1) ... [2021-11-07 14:04:53,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:04:53,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:04:53,356 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) [2021-11-07 14:04:53,362 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 [2021-11-07 14:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2021-11-07 14:04:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2021-11-07 14:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2021-11-07 14:04:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2021-11-07 14:04:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2021-11-07 14:04:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2021-11-07 14:04:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2021-11-07 14:04:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2021-11-07 14:04:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2021-11-07 14:04:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2021-11-07 14:04:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2021-11-07 14:04:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2021-11-07 14:04:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2021-11-07 14:04:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2021-11-07 14:04:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_status [2021-11-07 14:04:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_status [2021-11-07 14:04:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2021-11-07 14:04:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2021-11-07 14:04:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte [2021-11-07 14:04:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte [2021-11-07 14:04:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:04:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:04:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:04:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:04:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-07 14:04:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2021-11-07 14:04:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2021-11-07 14:04:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2021-11-07 14:04:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2021-11-07 14:04:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 14:04:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 14:04:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 14:04:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 14:04:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:04:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2021-11-07 14:04:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2021-11-07 14:04:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2021-11-07 14:04:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2021-11-07 14:04:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:04:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2021-11-07 14:04:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2021-11-07 14:04:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2021-11-07 14:04:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2021-11-07 14:04:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:04:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2021-11-07 14:04:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2021-11-07 14:04:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2021-11-07 14:04:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2021-11-07 14:04:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:04:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 14:04:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:04:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:04:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:04:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:04:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2021-11-07 14:04:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2021-11-07 14:04:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure read_all_bytes [2021-11-07 14:04:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure read_all_bytes [2021-11-07 14:04:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2021-11-07 14:04:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2021-11-07 14:04:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:04:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2021-11-07 14:04:53,396 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2021-11-07 14:04:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:04:53,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:06:12,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:06:12,880 INFO L299 CfgBuilder]: Removed 7356 assume(true) statements. [2021-11-07 14:06:12,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:06:12 BoogieIcfgContainer [2021-11-07 14:06:12,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:06:12,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:06:12,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:06:12,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:06:12,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:04:47" (1/3) ... [2021-11-07 14:06:12,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5e4ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:06:12, skipping insertion in model container [2021-11-07 14:06:12,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:49" (2/3) ... [2021-11-07 14:06:12,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5e4ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:06:12, skipping insertion in model container [2021-11-07 14:06:12,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:06:12" (3/3) ... [2021-11-07 14:06:12,894 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:06:12,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:06:12,898 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2021-11-07 14:06:12,955 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:06:12,959 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 [2021-11-07 14:06:12,959 INFO L340 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-11-07 14:06:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 10501 states, 10223 states have (on average 1.5328181551403697) internal successors, (15670), 10292 states have internal predecessors, (15670), 194 states have call successors, (194), 25 states have call predecessors, (194), 25 states have return successors, (194), 190 states have call predecessors, (194), 194 states have call successors, (194) [2021-11-07 14:06:13,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 14:06:13,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:06:13,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:06:13,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [smi_event_handlerErr0ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr1ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 14:06:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:06:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash 182779664, now seen corresponding path program 1 times [2021-11-07 14:06:13,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:06:13,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186251384] [2021-11-07 14:06:13,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:06:13,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:06:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:06:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:06:13,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:06:13,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186251384] [2021-11-07 14:06:13,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186251384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:06:13,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:06:13,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:06:13,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27640938] [2021-11-07 14:06:13,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:06:13,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:06:13,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:06:13,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:06:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:06:13,980 INFO L87 Difference]: Start difference. First operand has 10501 states, 10223 states have (on average 1.5328181551403697) internal successors, (15670), 10292 states have internal predecessors, (15670), 194 states have call successors, (194), 25 states have call predecessors, (194), 25 states have return successors, (194), 190 states have call predecessors, (194), 194 states have call successors, (194) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-07 14:06:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:06:14,351 INFO L93 Difference]: Finished difference Result 20998 states and 32305 transitions. [2021-11-07 14:06:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:06:14,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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 82 [2021-11-07 14:06:14,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:06:14,415 INFO L225 Difference]: With dead ends: 20998 [2021-11-07 14:06:14,415 INFO L226 Difference]: Without dead ends: 10474 [2021-11-07 14:06:14,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:06:14,473 INFO L933 BasicCegarLoop]: 15812 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15812 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.99ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:06:14,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15812 Invalid, 0 Unknown, 0 Unchecked, 61.99ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:06:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10474 states. [2021-11-07 14:06:14,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10474 to 10474. [2021-11-07 14:06:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10474 states, 10197 states have (on average 1.507698342649799) internal successors, (15374), 10265 states have internal predecessors, (15374), 194 states have call successors, (194), 25 states have call predecessors, (194), 25 states have return successors, (194), 190 states have call predecessors, (194), 194 states have call successors, (194) [2021-11-07 14:06:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10474 states to 10474 states and 15762 transitions. [2021-11-07 14:06:14,813 INFO L78 Accepts]: Start accepts. Automaton has 10474 states and 15762 transitions. Word has length 82 [2021-11-07 14:06:14,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:06:14,814 INFO L470 AbstractCegarLoop]: Abstraction has 10474 states and 15762 transitions. [2021-11-07 14:06:14,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-07 14:06:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 10474 states and 15762 transitions. [2021-11-07 14:06:14,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 14:06:14,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:06:14,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:06:14,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:06:14,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [smi_event_handlerErr0ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr1ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 14:06:14,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:06:14,828 INFO L85 PathProgramCache]: Analyzing trace with hash 23053988, now seen corresponding path program 1 times [2021-11-07 14:06:14,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:06:14,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382299320] [2021-11-07 14:06:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:06:14,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:06:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:06:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:06:15,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:06:15,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382299320] [2021-11-07 14:06:15,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382299320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:06:15,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:06:15,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:06:15,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065276710] [2021-11-07 14:06:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:06:15,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:06:15,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:06:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:06:15,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:06:15,269 INFO L87 Difference]: Start difference. First operand 10474 states and 15762 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2021-11-07 14:06:17,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:06:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:06:22,276 INFO L93 Difference]: Finished difference Result 51954 states and 79057 transitions. [2021-11-07 14:06:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:06:22,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 82 [2021-11-07 14:06:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:06:22,486 INFO L225 Difference]: With dead ends: 51954 [2021-11-07 14:06:22,486 INFO L226 Difference]: Without dead ends: 41559 [2021-11-07 14:06:22,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.13ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:06:22,572 INFO L933 BasicCegarLoop]: 38335 mSDtfsCounter, 47009 mSDsluCounter, 92558 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 71 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4978.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47009 SdHoareTripleChecker+Valid, 130893 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 168.33ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5473.04ms IncrementalHoareTripleChecker+Time [2021-11-07 14:06:22,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47009 Valid, 130893 Invalid, 1800 Unknown, 0 Unchecked, 168.33ms Time], IncrementalHoareTripleChecker [71 Valid, 1728 Invalid, 1 Unknown, 0 Unchecked, 5473.04ms Time] [2021-11-07 14:06:22,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41559 states. [2021-11-07 14:06:23,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41559 to 41210. [2021-11-07 14:06:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41210 states, 40279 states have (on average 1.5108865662007498) internal successors, (60857), 40378 states have internal predecessors, (60857), 773 states have call successors, (773), 100 states have call predecessors, (773), 100 states have return successors, (1211), 759 states have call predecessors, (1211), 773 states have call successors, (1211) [2021-11-07 14:06:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41210 states to 41210 states and 62841 transitions. [2021-11-07 14:06:23,651 INFO L78 Accepts]: Start accepts. Automaton has 41210 states and 62841 transitions. Word has length 82 [2021-11-07 14:06:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:06:23,653 INFO L470 AbstractCegarLoop]: Abstraction has 41210 states and 62841 transitions. [2021-11-07 14:06:23,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2021-11-07 14:06:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 41210 states and 62841 transitions. [2021-11-07 14:06:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 14:06:23,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:06:23,654 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:06:23,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:06:23,655 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [smi_event_handlerErr0ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr1ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 14:06:23,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:06:23,655 INFO L85 PathProgramCache]: Analyzing trace with hash 848293157, now seen corresponding path program 1 times [2021-11-07 14:06:23,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:06:23,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747923321] [2021-11-07 14:06:23,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:06:23,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:06:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:06:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:06:24,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:06:24,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747923321] [2021-11-07 14:06:24,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747923321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:06:24,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:06:24,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:06:24,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029311345] [2021-11-07 14:06:24,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:06:24,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:06:24,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:06:24,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:06:24,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:06:24,203 INFO L87 Difference]: Start difference. First operand 41210 states and 62841 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2021-11-07 14:06:26,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:06:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:06:33,304 INFO L93 Difference]: Finished difference Result 205517 states and 320584 transitions. [2021-11-07 14:06:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:06:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2021-11-07 14:06:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:06:33,994 INFO L225 Difference]: With dead ends: 205517 [2021-11-07 14:06:33,995 INFO L226 Difference]: Without dead ends: 164386 [2021-11-07 14:06:34,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.54ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:06:34,522 INFO L933 BasicCegarLoop]: 16550 mSDtfsCounter, 62241 mSDsluCounter, 62114 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 459 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5050.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62241 SdHoareTripleChecker+Valid, 78664 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 93.59ms SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5523.07ms IncrementalHoareTripleChecker+Time [2021-11-07 14:06:34,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62241 Valid, 78664 Invalid, 1605 Unknown, 0 Unchecked, 93.59ms Time], IncrementalHoareTripleChecker [459 Valid, 1145 Invalid, 1 Unknown, 0 Unchecked, 5523.07ms Time] [2021-11-07 14:06:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164386 states. [2021-11-07 14:06:38,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164386 to 164028. [2021-11-07 14:06:38,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164028 states, 160490 states have (on average 1.5112156520655493) internal successors, (242535), 160707 states have internal predecessors, (242535), 3080 states have call successors, (3080), 400 states have call predecessors, (3080), 400 states have return successors, (8902), 3032 states have call predecessors, (8902), 3080 states have call successors, (8902) [2021-11-07 14:06:39,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164028 states to 164028 states and 254517 transitions. [2021-11-07 14:06:39,849 INFO L78 Accepts]: Start accepts. Automaton has 164028 states and 254517 transitions. Word has length 83 [2021-11-07 14:06:39,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:06:39,850 INFO L470 AbstractCegarLoop]: Abstraction has 164028 states and 254517 transitions. [2021-11-07 14:06:39,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2021-11-07 14:06:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 164028 states and 254517 transitions. [2021-11-07 14:06:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 14:06:39,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:06:39,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:06:39,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:06:39,852 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [smi_event_handlerErr0ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr1ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 14:06:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:06:39,853 INFO L85 PathProgramCache]: Analyzing trace with hash 660903763, now seen corresponding path program 1 times [2021-11-07 14:06:39,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:06:39,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371956538] [2021-11-07 14:06:39,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:06:39,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:06:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:06:40,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:06:40,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:06:40,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371956538] [2021-11-07 14:06:40,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371956538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:06:40,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:06:40,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:06:40,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893875413] [2021-11-07 14:06:40,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:06:40,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:06:40,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:06:40,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:06:40,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:06:40,393 INFO L87 Difference]: Start difference. First operand 164028 states and 254517 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2021-11-07 14:06:42,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []