./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bca836bbe3a531e36018faf0b4374aec0682953aa5034dcc910310719152fdea --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:34:20,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:34:20,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:34:20,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:34:20,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:34:20,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:34:20,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:34:20,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:34:20,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:34:20,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:34:20,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:34:20,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:34:20,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:34:20,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:34:20,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:34:20,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:34:20,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:34:20,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:34:20,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:34:20,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:34:20,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:34:20,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:34:20,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:34:20,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:34:20,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:34:20,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:34:20,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:34:20,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:34:20,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:34:20,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:34:20,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:34:20,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:34:20,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:34:20,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:34:20,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:34:20,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:34:20,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:34:20,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:34:20,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:34:20,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:34:20,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:34:20,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:34:20,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:34:20,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:34:20,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:34:20,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:34:20,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:34:20,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:34:20,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:34:20,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:34:20,603 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:34:20,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:34:20,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:34:20,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:34:20,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:34:20,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:34:20,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:34:20,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:34:20,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:34:20,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:34:20,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:34:20,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:34:20,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:34:20,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:34:20,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:34:20,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:34:20,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:34:20,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:34:20,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:34:20,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:34:20,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:34:20,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:34:20,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bca836bbe3a531e36018faf0b4374aec0682953aa5034dcc910310719152fdea [2021-12-28 04:34:20,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:34:20,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:34:20,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:34:20,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:34:20,971 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:34:20,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i [2021-12-28 04:34:21,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bce20ee/65af8e7396cb480293d8f4d8c4ce8d03/FLAG1ea752112 [2021-12-28 04:34:21,659 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:34:21,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i [2021-12-28 04:34:21,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bce20ee/65af8e7396cb480293d8f4d8c4ce8d03/FLAG1ea752112 [2021-12-28 04:34:21,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bce20ee/65af8e7396cb480293d8f4d8c4ce8d03 [2021-12-28 04:34:21,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:34:21,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:34:21,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:34:21,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:34:21,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:34:21,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:34:21" (1/1) ... [2021-12-28 04:34:21,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1adfeb8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:21, skipping insertion in model container [2021-12-28 04:34:21,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:34:21" (1/1) ... [2021-12-28 04:34:21,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:34:21,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:34:23,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i[238430,238443] [2021-12-28 04:34:23,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:34:23,155 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:34:23,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i[238430,238443] [2021-12-28 04:34:23,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:34:23,477 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:34:23,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23 WrapperNode [2021-12-28 04:34:23,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:34:23,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:34:23,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:34:23,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:34:23,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,659 INFO L137 Inliner]: procedures = 213, calls = 1959, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 4536 [2021-12-28 04:34:23,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:34:23,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:34:23,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:34:23,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:34:23,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:34:23,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:34:23,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:34:23,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:34:23,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (1/1) ... [2021-12-28 04:34:23,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:34:23,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:34:23,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 04:34:23,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 04:34:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:34:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:34:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:34:23,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:34:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure initio_status_msg [2021-12-28 04:34:23,969 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_status_msg [2021-12-28 04:34:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:34:23,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:34:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure initio_select_atn_stop [2021-12-28 04:34:23,970 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_select_atn_stop [2021-12-28 04:34:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin_accept [2021-12-28 04:34:23,970 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin_accept [2021-12-28 04:34:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure initio_remove_one [2021-12-28 04:34:23,970 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_remove_one [2021-12-28 04:34:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:34:23,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:34:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:34:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:34:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-28 04:34:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-28 04:34:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 04:34:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 04:34:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_scsi_rst [2021-12-28 04:34:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_scsi_rst [2021-12-28 04:34:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure initio_abort_srb [2021-12-28 04:34:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_abort_srb [2021-12-28 04:34:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:34:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:34:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2021-12-28 04:34:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2021-12-28 04:34:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:34:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:34:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure initio_next_state [2021-12-28 04:34:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_next_state [2021-12-28 04:34:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:34:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:34:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:34:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:34:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_pend_scb [2021-12-28 04:34:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_pend_scb [2021-12-28 04:34:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:34:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:34:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_busy_scb [2021-12-28 04:34:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_busy_scb [2021-12-28 04:34:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-28 04:34:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-28 04:34:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:34:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_reject [2021-12-28 04:34:23,975 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_reject [2021-12-28 04:34:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:34:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_rd_all [2021-12-28 04:34:23,975 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_rd_all [2021-12-28 04:34:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:34:23,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:34:23,976 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:34:23,976 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:34:23,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:34:23,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:34:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure initio_release_scb [2021-12-28 04:34:23,977 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_release_scb [2021-12-28 04:34:23,978 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_scsi [2021-12-28 04:34:23,978 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_scsi [2021-12-28 04:34:23,978 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-28 04:34:23,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-28 04:34:23,978 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-28 04:34:23,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-28 04:34:23,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:34:23,978 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:34:23,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:34:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_targ [2021-12-28 04:34:23,979 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_targ [2021-12-28 04:34:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:34:23,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:34:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:34:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_instr [2021-12-28 04:34:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_instr [2021-12-28 04:34:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:34:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure initio_find_first_pend_scb [2021-12-28 04:34:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_find_first_pend_scb [2021-12-28 04:34:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:34:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:34:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_busy_scb [2021-12-28 04:34:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_busy_scb [2021-12-28 04:34:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_done_disc [2021-12-28 04:34:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_done_disc [2021-12-28 04:34:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-28 04:34:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-28 04:34:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:34:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:34:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:34:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure initio_stop_bm [2021-12-28 04:34:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_stop_bm [2021-12-28 04:34:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-28 04:34:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-28 04:34:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure wait_tulip [2021-12-28 04:34:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_tulip [2021-12-28 04:34:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:34:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:34:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure initio_pop_busy_scb [2021-12-28 04:34:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_pop_busy_scb [2021-12-28 04:34:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure initio_bad_seq [2021-12-28 04:34:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_bad_seq [2021-12-28 04:34:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:34:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:34:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_resel [2021-12-28 04:34:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_resel [2021-12-28 04:34:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:34:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-28 04:34:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-28 04:34:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:34:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_tag [2021-12-28 04:34:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_tag [2021-12-28 04:34:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:34:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:34:23,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:34:23,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:34:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:34:23,986 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-28 04:34:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-28 04:34:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure initio_reset_scsi [2021-12-28 04:34:23,988 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_reset_scsi [2021-12-28 04:34:23,988 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_done_scb [2021-12-28 04:34:23,988 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_done_scb [2021-12-28 04:34:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_pend_scb [2021-12-28 04:34:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_pend_scb [2021-12-28 04:34:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin [2021-12-28 04:34:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin [2021-12-28 04:34:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-28 04:34:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-28 04:34:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_main [2021-12-28 04:34:23,994 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_main [2021-12-28 04:34:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:34:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:34:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:34:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_busfree [2021-12-28 04:34:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_busfree [2021-12-28 04:34:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure initio_sync_done [2021-12-28 04:34:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_sync_done [2021-12-28 04:34:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_disc [2021-12-28 04:34:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_disc [2021-12-28 04:34:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:34:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:34:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-12-28 04:34:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-12-28 04:34:24,581 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:34:24,585 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:34:24,736 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:34:29,681 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:34:29,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:34:29,694 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:34:29,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:34:29 BoogieIcfgContainer [2021-12-28 04:34:29,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:34:29,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:34:29,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:34:29,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:34:29,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:34:21" (1/3) ... [2021-12-28 04:34:29,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5db62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:34:29, skipping insertion in model container [2021-12-28 04:34:29,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:34:23" (2/3) ... [2021-12-28 04:34:29,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5db62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:34:29, skipping insertion in model container [2021-12-28 04:34:29,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:34:29" (3/3) ... [2021-12-28 04:34:29,702 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i [2021-12-28 04:34:29,705 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:34:29,705 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:34:29,741 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:34:29,745 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:34:29,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:34:29,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 1793 states, 1215 states have (on average 1.3333333333333333) internal successors, (1620), 1250 states have internal predecessors, (1620), 513 states have call successors, (513), 64 states have call predecessors, (513), 63 states have return successors, (507), 501 states have call predecessors, (507), 507 states have call successors, (507) [2021-12-28 04:34:29,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-28 04:34:29,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:34:29,788 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:34:29,789 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:34:29,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:34:29,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1560347786, now seen corresponding path program 1 times [2021-12-28 04:34:29,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:34:29,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665133880] [2021-12-28 04:34:29,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:34:29,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:34:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:34:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:34:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:34:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:34:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:34:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 04:34:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 04:34:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 04:34:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:34:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-28 04:34:30,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:34:30,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665133880] [2021-12-28 04:34:30,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665133880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:34:30,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:34:30,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:34:30,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816407862] [2021-12-28 04:34:30,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:34:30,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:34:30,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:34:30,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:34:30,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:34:30,287 INFO L87 Difference]: Start difference. First operand has 1793 states, 1215 states have (on average 1.3333333333333333) internal successors, (1620), 1250 states have internal predecessors, (1620), 513 states have call successors, (513), 64 states have call predecessors, (513), 63 states have return successors, (507), 501 states have call predecessors, (507), 507 states have call successors, (507) Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 04:34:33,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:34:35,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:34:37,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:34:42,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:34:42,545 INFO L93 Difference]: Finished difference Result 3882 states and 5785 transitions. [2021-12-28 04:34:42,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:34:42,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2021-12-28 04:34:42,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:34:42,576 INFO L225 Difference]: With dead ends: 3882 [2021-12-28 04:34:42,577 INFO L226 Difference]: Without dead ends: 2074 [2021-12-28 04:34:42,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:34:42,592 INFO L933 BasicCegarLoop]: 2037 mSDtfsCounter, 1990 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 5512 mSolverCounterSat, 1567 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 7080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1567 IncrementalHoareTripleChecker+Valid, 5512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:34:42,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2351 Valid, 3148 Invalid, 7080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1567 Valid, 5512 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2021-12-28 04:34:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2021-12-28 04:34:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1773. [2021-12-28 04:34:42,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1203 states have (on average 1.3258520365752287) internal successors, (1595), 1230 states have internal predecessors, (1595), 507 states have call successors, (507), 63 states have call predecessors, (507), 62 states have return successors, (506), 500 states have call predecessors, (506), 506 states have call successors, (506) [2021-12-28 04:34:42,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2608 transitions. [2021-12-28 04:34:42,756 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2608 transitions. Word has length 128 [2021-12-28 04:34:42,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:34:42,757 INFO L470 AbstractCegarLoop]: Abstraction has 1773 states and 2608 transitions. [2021-12-28 04:34:42,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 04:34:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2608 transitions. [2021-12-28 04:34:42,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-28 04:34:42,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:34:42,767 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:34:42,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:34:42,767 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:34:42,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:34:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1164560638, now seen corresponding path program 1 times [2021-12-28 04:34:42,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:34:42,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187190710] [2021-12-28 04:34:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:34:42,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:34:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:42,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:34:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:42,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:34:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:34:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:34:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:34:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:34:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:34:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 04:34:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 04:34:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 04:34:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:34:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:34:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-28 04:34:43,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:34:43,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187190710] [2021-12-28 04:34:43,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187190710] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:34:43,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:34:43,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:34:43,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757334958] [2021-12-28 04:34:43,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:34:43,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:34:43,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:34:43,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:34:43,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:34:43,109 INFO L87 Difference]: Start difference. First operand 1773 states and 2608 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 04:34:45,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:34:48,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:34:50,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:34:52,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:34:53,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:35:03,353 INFO L93 Difference]: Finished difference Result 5609 states and 8344 transitions. [2021-12-28 04:35:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:35:03,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2021-12-28 04:35:03,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:35:03,373 INFO L225 Difference]: With dead ends: 5609 [2021-12-28 04:35:03,374 INFO L226 Difference]: Without dead ends: 3852 [2021-12-28 04:35:03,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:35:03,382 INFO L933 BasicCegarLoop]: 2463 mSDtfsCounter, 5098 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 8156 mSolverCounterSat, 4007 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5494 SdHoareTripleChecker+Valid, 3657 SdHoareTripleChecker+Invalid, 12165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4007 IncrementalHoareTripleChecker+Valid, 8156 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:35:03,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5494 Valid, 3657 Invalid, 12165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4007 Valid, 8156 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2021-12-28 04:35:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3852 states. [2021-12-28 04:35:03,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3852 to 3274. [2021-12-28 04:35:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2229 states have (on average 1.3283983849259757) internal successors, (2961), 2278 states have internal predecessors, (2961), 926 states have call successors, (926), 119 states have call predecessors, (926), 118 states have return successors, (925), 914 states have call predecessors, (925), 925 states have call successors, (925) [2021-12-28 04:35:03,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4812 transitions. [2021-12-28 04:35:03,590 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4812 transitions. Word has length 128 [2021-12-28 04:35:03,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:35:03,592 INFO L470 AbstractCegarLoop]: Abstraction has 3274 states and 4812 transitions. [2021-12-28 04:35:03,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 04:35:03,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4812 transitions. [2021-12-28 04:35:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-28 04:35:03,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:35:03,608 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:35:03,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:35:03,608 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:35:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:35:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2047937129, now seen corresponding path program 1 times [2021-12-28 04:35:03,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:35:03,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085691055] [2021-12-28 04:35:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:35:03,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:35:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:35:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:35:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:35:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:35:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:35:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:35:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:35:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:35:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:35:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:35:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:35:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:35:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:35:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 04:35:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 04:35:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:35:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:35:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 04:35:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:35:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:35:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:35:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-28 04:35:03,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:35:03,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085691055] [2021-12-28 04:35:03,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085691055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:35:03,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:35:03,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:35:03,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514511305] [2021-12-28 04:35:03,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:35:03,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:35:03,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:35:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:35:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:35:03,920 INFO L87 Difference]: Start difference. First operand 3274 states and 4812 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 04:35:07,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:09,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:11,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:13,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:15,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:17,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:19,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:35:29,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []