/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--ata--sata_sx4.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 01:18:55,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:18:55,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:18:55,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:18:55,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:18:55,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:18:55,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:18:55,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:18:55,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:18:55,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:18:55,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:18:55,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:18:55,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:18:55,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:18:55,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:18:55,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:18:55,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:18:55,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:18:55,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:18:55,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:18:55,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:18:55,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:18:55,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:18:55,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:18:55,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:18:55,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:18:55,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:18:55,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:18:55,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:18:55,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:18:55,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:18:55,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:18:55,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:18:55,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:18:55,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:18:55,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:18:55,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:18:55,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:18:55,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:18:55,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:18:55,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:18:55,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 01:18:55,632 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:18:55,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:18:55,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:18:55,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:18:55,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:18:55,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:18:55,634 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:18:55,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:18:55,634 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:18:55,634 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:18:55,635 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:18:55,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:18:55,635 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:18:55,635 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:18:55,635 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:18:55,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:18:55,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:18:55,636 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:18:55,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:18:55,637 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:18:55,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:18:55,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:18:55,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:18:55,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:18:55,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:18:55,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:18:55,638 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:18:55,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:18:55,638 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:18:55,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:18:55,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:18:55,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:18:55,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:18:55,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:18:55,639 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:18:55,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:18:55,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:18:55,640 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:18:55,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:18:55,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:18:55,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:18:55,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:18:55,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:18:55,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:18:55,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:18:55,906 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:18:55,906 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:18:55,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--ata--sata_sx4.ko-entry_point.cil.out.i [2023-04-01 01:18:57,101 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:18:57,575 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:18:57,576 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--ata--sata_sx4.ko-entry_point.cil.out.i [2023-04-01 01:18:57,609 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f880f4511/5d265b7a678b4b1ea6522cc8bf9d4820/FLAGb5ae9763a [2023-04-01 01:18:57,626 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f880f4511/5d265b7a678b4b1ea6522cc8bf9d4820 [2023-04-01 01:18:57,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:18:57,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:18:57,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:18:57,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:18:57,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:18:57,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:18:57" (1/1) ... [2023-04-01 01:18:57,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1a2d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:57, skipping insertion in model container [2023-04-01 01:18:57,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:18:57" (1/1) ... [2023-04-01 01:18:57,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:18:57,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:18:58,192 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4786] [2023-04-01 01:18:58,193 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4787-4788] [2023-04-01 01:18:58,343 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--ata--sata_sx4.ko-entry_point.cil.out.i[144467,144480] [2023-04-01 01:18:58,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:18:58,856 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:18:58,945 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4786] [2023-04-01 01:18:58,946 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4787-4788] [2023-04-01 01:18:58,953 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--ata--sata_sx4.ko-entry_point.cil.out.i[144467,144480] [2023-04-01 01:18:59,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:18:59,189 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:18:59,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59 WrapperNode [2023-04-01 01:18:59,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:18:59,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:18:59,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:18:59,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:18:59,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,411 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:18:59,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:18:59,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:18:59,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:18:59,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (1/1) ... [2023-04-01 01:18:59,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:18:59,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:18:59,489 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) [2023-04-01 01:18:59,491 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 [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u8~0 [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-04-01 01:18:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 01:18:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-04-01 01:18:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_coherent_mask [2023-04-01 01:18:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-04-01 01:18:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2023-04-01 01:18:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_tag_valid [2023-04-01 01:18:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __ata_qc_from_tag [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_qc_from_tag [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ac_err_mask [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sff_busy_wait [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_wait_idle [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_pkt_footer [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_prep_lba28 [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_prep_lba48 [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_port_start [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_ata_sg [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_host_sg [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_ata_pkt [2023-04-01 01:18:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_host_pkt [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_dma_prep [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_nodata_prep [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_qc_prep [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __pdc20621_push_hdma [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_push_hdma [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_pop_hdma [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_dump_hdma [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_packet_start [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_qc_issue [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_host_intr [2023-04-01 01:18:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_irq_clear [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_interrupt [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_freeze [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_thaw [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_reset_port [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_softreset [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_error_handler [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_post_internal_cmd [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_check_atapi_dma [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_tf_load_mmio [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_exec_command_mmio [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_sata_setup_port [2023-04-01 01:18:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_put_to_dimm [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_i2c_read [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_detect_dimm [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_prog_dimm0 [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_prog_dimm_global [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc20621_dimm_init [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_20621_init [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_sata_init_one [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_sata_pci_driver_init [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pdc_sata_pci_driver_exit [2023-04-01 01:18:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ata_port_operations_2 [2023-04-01 01:18:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2023-04-01 01:18:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pci_driver_1 [2023-04-01 01:18:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:18:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 01:18:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_host_activate [2023-04-01 01:18:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_host_alloc_pinfo [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_pci_remove_one [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_port_pbar_desc [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_print_version [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_qc_complete [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_scsi_ioctl [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_scsi_queuecmd [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_scsi_slave_config [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_scsi_slave_destroy [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_scsi_unlock_native_capacity [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sff_error_handler [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sff_exec_command [2023-04-01 01:18:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sff_qc_issue [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sff_softreset [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sff_tf_load [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_std_bios_param [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_supported [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dmam_alloc_coherent [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:18:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pcim_enable_device [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pcim_iomap_regions [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pcim_iomap_table [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pcim_pin_device [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-01 01:18:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:18:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 01:18:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 01:18:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 01:18:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:18:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:18:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:18:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:18:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:18:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2023-04-01 01:18:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-01 01:18:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:18:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ata_port_operations_2 [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pci_driver_1 [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure pcim_enable_device [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure pcim_pin_device [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-04-01 01:18:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure dma_supported [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_coherent_mask [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure dmam_alloc_coherent [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure pcim_iomap_table [2023-04-01 01:18:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure pcim_iomap_regions [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_host_alloc_pinfo [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_host_activate [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_scsi_ioctl [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_scsi_queuecmd [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_qc_complete [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_std_bios_param [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_scsi_unlock_native_capacity [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_scsi_slave_config [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_scsi_slave_destroy [2023-04-01 01:18:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ata_pci_remove_one [2023-04-01 01:18:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ata_print_version [2023-04-01 01:18:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ata_port_pbar_desc [2023-04-01 01:18:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ata_tag_valid [2023-04-01 01:18:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure __ata_qc_from_tag [2023-04-01 01:18:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ata_qc_from_tag [2023-04-01 01:18:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:18:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:18:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ac_err_mask [2023-04-01 01:18:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sff_tf_load [2023-04-01 01:18:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sff_exec_command [2023-04-01 01:18:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sff_qc_issue [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sff_softreset [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sff_error_handler [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sff_busy_wait [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u8~0 [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ata_wait_idle [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_pkt_footer [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_prep_lba28 [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_prep_lba48 [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_sata_init_one [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_error_handler [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_freeze [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_thaw [2023-04-01 01:18:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_port_start [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_qc_prep [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_tf_load_mmio [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_exec_command_mmio [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_dimm_init [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_detect_dimm [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_i2c_read [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_prog_dimm0 [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_prog_dimm_global [2023-04-01 01:18:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_put_to_dimm [2023-04-01 01:18:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_irq_clear [2023-04-01 01:18:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_qc_issue [2023-04-01 01:18:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_softreset [2023-04-01 01:18:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_post_internal_cmd [2023-04-01 01:18:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_check_atapi_dma [2023-04-01 01:18:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:18:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_ata_sg [2023-04-01 01:18:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_host_sg [2023-04-01 01:18:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_ata_pkt [2023-04-01 01:18:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_host_pkt [2023-04-01 01:18:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_dma_prep [2023-04-01 01:18:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_nodata_prep [2023-04-01 01:18:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure __pdc20621_push_hdma [2023-04-01 01:18:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_push_hdma [2023-04-01 01:18:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_pop_hdma [2023-04-01 01:18:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_dump_hdma [2023-04-01 01:18:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_packet_start [2023-04-01 01:18:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_host_intr [2023-04-01 01:18:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure pdc20621_interrupt [2023-04-01 01:18:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_reset_port [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_sata_setup_port [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_20621_init [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_sata_pci_driver_init [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure pdc_sata_pci_driver_exit [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-01 01:18:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:18:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:19:00,112 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:19:00,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:19:02,839 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 01:19:08,987 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:19:10,269 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:19:10,269 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 01:19:10,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:19:10 BoogieIcfgContainer [2023-04-01 01:19:10,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:19:10,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:19:10,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:19:10,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:19:10,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:18:57" (1/3) ... [2023-04-01 01:19:10,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765054f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:19:10, skipping insertion in model container [2023-04-01 01:19:10,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:18:59" (2/3) ... [2023-04-01 01:19:10,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765054f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:19:10, skipping insertion in model container [2023-04-01 01:19:10,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:19:10" (3/3) ... [2023-04-01 01:19:10,283 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--ata--sata_sx4.ko-entry_point.cil.out.i [2023-04-01 01:19:10,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:19:10,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:19:10,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:19:10,390 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@598fdaa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:19:10,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:19:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 815 states, 450 states have (on average 1.268888888888889) internal successors, (571), 471 states have internal predecessors, (571), 244 states have call successors, (244), 115 states have call predecessors, (244), 114 states have return successors, (239), 237 states have call predecessors, (239), 239 states have call successors, (239) [2023-04-01 01:19:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-04-01 01:19:10,436 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:19:10,437 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:19:10,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:19:10,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:19:10,442 INFO L85 PathProgramCache]: Analyzing trace with hash 289320506, now seen corresponding path program 1 times [2023-04-01 01:19:10,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:19:10,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139914107] [2023-04-01 01:19:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:19:10,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:19:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:19:10,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:19:10,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139914107] [2023-04-01 01:19:10,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-04-01 01:19:10,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639736397] [2023-04-01 01:19:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:19:10,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:19:10,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:19:10,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:19:10,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 01:19:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:19:11,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-01 01:19:11,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:19:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-04-01 01:19:12,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:19:12,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639736397] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:19:12,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:19:12,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:19:12,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386938427] [2023-04-01 01:19:12,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:19:12,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:19:12,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:19:12,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:19:12,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:19:12,143 INFO L87 Difference]: Start difference. First operand has 815 states, 450 states have (on average 1.268888888888889) internal successors, (571), 471 states have internal predecessors, (571), 244 states have call successors, (244), 115 states have call predecessors, (244), 114 states have return successors, (239), 237 states have call predecessors, (239), 239 states have call successors, (239) Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 01:19:14,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:16,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:18,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:20,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:22,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:24,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:26,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:28,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:30,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:33,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:35,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:35,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:19:35,456 INFO L93 Difference]: Finished difference Result 1752 states and 2299 transitions. [2023-04-01 01:19:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:19:35,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 269 [2023-04-01 01:19:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:19:35,491 INFO L225 Difference]: With dead ends: 1752 [2023-04-01 01:19:35,491 INFO L226 Difference]: Without dead ends: 1053 [2023-04-01 01:19:35,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:19:35,510 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 561 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2023-04-01 01:19:35,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1531 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 11 Unknown, 0 Unchecked, 23.2s Time] [2023-04-01 01:19:35,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-04-01 01:19:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1052. [2023-04-01 01:19:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 606 states have (on average 1.283828382838284) internal successors, (778), 627 states have internal predecessors, (778), 298 states have call successors, (298), 149 states have call predecessors, (298), 147 states have return successors, (296), 293 states have call predecessors, (296), 296 states have call successors, (296) [2023-04-01 01:19:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1372 transitions. [2023-04-01 01:19:35,681 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1372 transitions. Word has length 269 [2023-04-01 01:19:35,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:19:35,683 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1372 transitions. [2023-04-01 01:19:35,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 01:19:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1372 transitions. [2023-04-01 01:19:35,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-04-01 01:19:35,696 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:19:35,696 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:19:35,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 01:19:35,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-04-01 01:19:35,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:19:35,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:19:35,910 INFO L85 PathProgramCache]: Analyzing trace with hash -335392687, now seen corresponding path program 1 times [2023-04-01 01:19:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:19:35,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233717182] [2023-04-01 01:19:35,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:19:35,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:19:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:19:36,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:19:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233717182] [2023-04-01 01:19:36,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-04-01 01:19:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925680565] [2023-04-01 01:19:36,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:19:36,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:19:36,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:19:36,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:19:36,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 01:19:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:19:37,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-01 01:19:37,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:19:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2023-04-01 01:19:37,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:19:37,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925680565] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:19:37,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:19:37,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:19:37,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894197888] [2023-04-01 01:19:37,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:19:37,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:19:37,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:19:37,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:19:37,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:19:37,193 INFO L87 Difference]: Start difference. First operand 1052 states and 1372 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-04-01 01:19:39,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:41,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:43,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:45,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:47,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:49,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:52,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:54,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:54,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:19:54,376 INFO L93 Difference]: Finished difference Result 2081 states and 2718 transitions. [2023-04-01 01:19:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:19:54,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 327 [2023-04-01 01:19:54,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:19:54,383 INFO L225 Difference]: With dead ends: 2081 [2023-04-01 01:19:54,384 INFO L226 Difference]: Without dead ends: 1058 [2023-04-01 01:19:54,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:19:54,387 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 1 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2023-04-01 01:19:54,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1521 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 8 Unknown, 0 Unchecked, 17.1s Time] [2023-04-01 01:19:54,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2023-04-01 01:19:54,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1053. [2023-04-01 01:19:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 607 states have (on average 1.2833607907742999) internal successors, (779), 628 states have internal predecessors, (779), 298 states have call successors, (298), 149 states have call predecessors, (298), 147 states have return successors, (296), 293 states have call predecessors, (296), 296 states have call successors, (296) [2023-04-01 01:19:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1373 transitions. [2023-04-01 01:19:54,434 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1373 transitions. Word has length 327 [2023-04-01 01:19:54,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:19:54,435 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 1373 transitions. [2023-04-01 01:19:54,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-04-01 01:19:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1373 transitions. [2023-04-01 01:19:54,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-04-01 01:19:54,499 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:19:54,499 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:19:54,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 01:19:54,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-04-01 01:19:54,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:19:54,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:19:54,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1711419140, now seen corresponding path program 1 times [2023-04-01 01:19:54,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:19:54,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394270834] [2023-04-01 01:19:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:19:54,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:19:54,857 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 01:19:54,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592124786] [2023-04-01 01:19:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:19:54,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:19:54,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:19:54,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:19:54,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 01:19:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:19:55,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 3425 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-01 01:19:55,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:19:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-04-01 01:19:55,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:19:55,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:19:55,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394270834] [2023-04-01 01:19:55,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 01:19:55,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592124786] [2023-04-01 01:19:55,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592124786] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:19:55,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:19:55,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:19:55,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162196717] [2023-04-01 01:19:55,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:19:55,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:19:55,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:19:55,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:19:55,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:19:55,767 INFO L87 Difference]: Start difference. First operand 1053 states and 1373 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2023-04-01 01:19:57,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:19:59,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:20:01,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:20:03,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []