/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 OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:24:08,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:24:08,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:24:08,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:24:08,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:24:08,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:24:08,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:24:08,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:24:08,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:24:08,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:24:08,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:24:08,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:24:08,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:24:08,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:24:08,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:24:08,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:24:08,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:24:08,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:24:08,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:24:08,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:24:08,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:24:08,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:24:08,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:24:08,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:24:08,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:24:08,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:24:08,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:24:08,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:24:08,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:24:08,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:24:08,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:24:08,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:24:08,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:24:08,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:24:08,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:24:08,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:24:08,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:24:08,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:24:08,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:24:08,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:24:08,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:24:08,803 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 [2023-04-03 06:24:08,826 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:24:08,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:24:08,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:24:08,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:24:08,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:24:08,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:24:08,827 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:24:08,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:24:08,828 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:24:08,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:24:08,828 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:24:08,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:24:08,828 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:24:08,829 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:24:08,829 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:24:08,829 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:24:08,829 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:24:08,829 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:24:08,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:24:08,829 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:24:08,830 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:24:08,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:24:08,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:24:08,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:24:08,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:24:08,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:24:08,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:24:09,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:24:09,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:24:09,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:24:09,044 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:24:09,045 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:24:09,045 INFO L432 ainManager$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--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-04-03 06:24:10,185 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:24:10,527 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:24:10,527 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-04-03 06:24:10,551 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876c1f2c1/802ca4f396cc46aa93c46241b92a30b1/FLAG54f6946c6 [2023-04-03 06:24:10,562 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876c1f2c1/802ca4f396cc46aa93c46241b92a30b1 [2023-04-03 06:24:10,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:24:10,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:24:10,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:24:10,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:24:10,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:24:10,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:24:10" (1/1) ... [2023-04-03 06:24:10,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33716d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:10, skipping insertion in model container [2023-04-03 06:24:10,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:24:10" (1/1) ... [2023-04-03 06:24:10,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:24:10,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:24:11,813 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2023-04-03 06:24:11,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:24:11,960 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:24:12,241 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2023-04-03 06:24:12,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:24:12,331 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:24:12,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12 WrapperNode [2023-04-03 06:24:12,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:24:12,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:24:12,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:24:12,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:24:12,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:24:12,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:24:12,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:24:12,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:24:12,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (1/1) ... [2023-04-03 06:24:12,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:24:12,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:24:12,598 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) [2023-04-03 06:24:12,629 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 [2023-04-03 06:24:12,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:24:12,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:24:12,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:24:12,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_8 [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-04-03 06:24:12,651 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-04-03 06:24:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-04-03 06:24:12,653 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-04-03 06:24:12,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-04-03 06:24:12,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-04-03 06:24:12,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2023-04-03 06:24:12,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-04-03 06:24:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure if_mii [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-04-03 06:24:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_init_one [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_init_ring [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_start_xmit [2023-04-03 06:24:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_interrupt [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_rx [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_error [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_drvinfo [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_settings [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_set_settings [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_link [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_ioctl [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2023-04-03 06:24:12,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_init [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_exit [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_6 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_driver_3 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ethtool_ops_4 [2023-04-03 06:24:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ethtool_ops_5 [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:24:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_37 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_38 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_39 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_40 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_41 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_42 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_43 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___pci_register_driver_44 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver_45 [2023-04-03 06:24:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:24:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_sync_single_for_cpu [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_sync_single_for_device [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-04-03 06:24:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_mii_ioctl [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_6 [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_6 [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:24:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-04-03 06:24:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-04-03 06:24:12,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:24:12,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:24:12,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:24:12,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-03 06:24:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:24:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-03 06:24:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_8 [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_41 [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-04-03 06:24:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_6 [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2023-04-03 06:24:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_driver_3 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ethtool_ops_4 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ethtool_ops_5 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_39 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_40 [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-03 06:24:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___pci_register_driver_44 [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver_45 [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_sync_single_for_cpu [2023-04-03 06:24:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_sync_single_for_device [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2023-04-03 06:24:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:24:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure generic_mii_ioctl [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure if_mii [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_38 [2023-04-03 06:24:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_43 [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_37 [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_42 [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2023-04-03 06:24:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_ioctl [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_init_ring [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_start_xmit [2023-04-03 06:24:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_interrupt [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_rx [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_error [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_init_one [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_drvinfo [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_settings [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_set_settings [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_link [2023-04-03 06:24:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_init [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_exit [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_6 [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_6 [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:24:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:24:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:24:13,216 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:24:13,222 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:24:13,321 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:24:15,119 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:24:16,041 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:24:16,041 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 06:24:16,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:24:16 BoogieIcfgContainer [2023-04-03 06:24:16,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:24:16,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:24:16,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:24:16,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:24:16,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:24:10" (1/3) ... [2023-04-03 06:24:16,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5e049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:24:16, skipping insertion in model container [2023-04-03 06:24:16,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:24:12" (2/3) ... [2023-04-03 06:24:16,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5e049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:24:16, skipping insertion in model container [2023-04-03 06:24:16,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:24:16" (3/3) ... [2023-04-03 06:24:16,049 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-04-03 06:24:16,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:24:16,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:24:16,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:24:16,112 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;@22ba7874, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:24:16,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:24:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 1466 states, 826 states have (on average 1.2602905569007263) internal successors, (1041), 861 states have internal predecessors, (1041), 450 states have call successors, (450), 177 states have call predecessors, (450), 176 states have return successors, (442), 430 states have call predecessors, (442), 442 states have call successors, (442) [2023-04-03 06:24:16,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-03 06:24:16,140 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:24:16,141 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:24:16,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:24:16,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:24:16,145 INFO L85 PathProgramCache]: Analyzing trace with hash 581725002, now seen corresponding path program 1 times [2023-04-03 06:24:16,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:24:16,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152254154] [2023-04-03 06:24:16,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:24:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:24:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:24:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:24:16,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:24:16,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152254154] [2023-04-03 06:24:16,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152254154] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:24:16,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:24:16,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:24:16,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041914121] [2023-04-03 06:24:16,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:24:16,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:24:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:24:16,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:24:16,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:24:16,684 INFO L87 Difference]: Start difference. First operand has 1466 states, 826 states have (on average 1.2602905569007263) internal successors, (1041), 861 states have internal predecessors, (1041), 450 states have call successors, (450), 177 states have call predecessors, (450), 176 states have return successors, (442), 430 states have call predecessors, (442), 442 states have call successors, (442) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-03 06:24:19,054 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 [] [2023-04-03 06:24:21,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:23,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:23,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:24:23,762 INFO L93 Difference]: Finished difference Result 3667 states and 4849 transitions. [2023-04-03 06:24:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:24:23,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2023-04-03 06:24:23,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:24:23,790 INFO L225 Difference]: With dead ends: 3667 [2023-04-03 06:24:23,790 INFO L226 Difference]: Without dead ends: 2216 [2023-04-03 06:24:23,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:24:23,806 INFO L413 NwaCegarLoop]: 1687 mSDtfsCounter, 1123 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:24:23,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 3253 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2023-04-03 06:24:23,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2023-04-03 06:24:24,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2191. [2023-04-03 06:24:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1257 states have (on average 1.239459029435163) internal successors, (1558), 1296 states have internal predecessors, (1558), 647 states have call successors, (647), 289 states have call predecessors, (647), 286 states have return successors, (648), 626 states have call predecessors, (648), 645 states have call successors, (648) [2023-04-03 06:24:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2853 transitions. [2023-04-03 06:24:24,067 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2853 transitions. Word has length 151 [2023-04-03 06:24:24,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:24:24,067 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 2853 transitions. [2023-04-03 06:24:24,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-03 06:24:24,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2853 transitions. [2023-04-03 06:24:24,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-03 06:24:24,075 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:24:24,075 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:24:24,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:24:24,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:24:24,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:24:24,076 INFO L85 PathProgramCache]: Analyzing trace with hash 917706, now seen corresponding path program 1 times [2023-04-03 06:24:24,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:24:24,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825885709] [2023-04-03 06:24:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:24:24,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:24:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:24:24,711 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:24:24,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:24:24,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825885709] [2023-04-03 06:24:24,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825885709] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:24:24,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:24:24,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:24:24,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605629336] [2023-04-03 06:24:24,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:24:24,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:24:24,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:24:24,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:24:24,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:24:24,719 INFO L87 Difference]: Start difference. First operand 2191 states and 2853 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:24:27,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:29,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:31,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:33,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:35,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:37,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:39,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:24:39,910 INFO L93 Difference]: Finished difference Result 6532 states and 8521 transitions. [2023-04-03 06:24:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:24:39,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159 [2023-04-03 06:24:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:24:39,931 INFO L225 Difference]: With dead ends: 6532 [2023-04-03 06:24:39,931 INFO L226 Difference]: Without dead ends: 4372 [2023-04-03 06:24:39,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:24:39,940 INFO L413 NwaCegarLoop]: 1670 mSDtfsCounter, 1816 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 6612 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:24:39,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 6612 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 792 Invalid, 7 Unknown, 0 Unchecked, 15.0s Time] [2023-04-03 06:24:39,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4372 states. [2023-04-03 06:24:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4372 to 4347. [2023-04-03 06:24:40,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 2497 states have (on average 1.2406888265919103) internal successors, (3098), 2582 states have internal predecessors, (3098), 1280 states have call successors, (1280), 573 states have call predecessors, (1280), 569 states have return successors, (1288), 1232 states have call predecessors, (1288), 1278 states have call successors, (1288) [2023-04-03 06:24:40,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 5666 transitions. [2023-04-03 06:24:40,167 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 5666 transitions. Word has length 159 [2023-04-03 06:24:40,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:24:40,168 INFO L495 AbstractCegarLoop]: Abstraction has 4347 states and 5666 transitions. [2023-04-03 06:24:40,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:24:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 5666 transitions. [2023-04-03 06:24:40,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-03 06:24:40,172 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:24:40,172 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:24:40,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:24:40,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:24:40,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:24:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash -490979830, now seen corresponding path program 1 times [2023-04-03 06:24:40,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:24:40,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927485502] [2023-04-03 06:24:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:24:40,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:24:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:24:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:24:40,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:24:40,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927485502] [2023-04-03 06:24:40,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927485502] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:24:40,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:24:40,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:24:40,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620544955] [2023-04-03 06:24:40,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:24:40,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:24:40,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:24:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:24:40,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:24:40,524 INFO L87 Difference]: Start difference. First operand 4347 states and 5666 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:24:42,982 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 [] [2023-04-03 06:24:44,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:46,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:49,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:51,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:53,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:55,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:24:56,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:24:56,017 INFO L93 Difference]: Finished difference Result 9490 states and 12326 transitions. [2023-04-03 06:24:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:24:56,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2023-04-03 06:24:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:24:56,046 INFO L225 Difference]: With dead ends: 9490 [2023-04-03 06:24:56,047 INFO L226 Difference]: Without dead ends: 6544 [2023-04-03 06:24:56,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:24:56,057 INFO L413 NwaCegarLoop]: 1773 mSDtfsCounter, 1812 mSDsluCounter, 5146 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 6919 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:24:56,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 6919 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 819 Invalid, 7 Unknown, 0 Unchecked, 15.3s Time] [2023-04-03 06:24:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6544 states. [2023-04-03 06:24:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6544 to 6509. [2023-04-03 06:24:56,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6509 states, 3745 states have (on average 1.2405874499332443) internal successors, (4646), 3866 states have internal predecessors, (4646), 1911 states have call successors, (1911), 857 states have call predecessors, (1911), 852 states have return successors, (1924), 1846 states have call predecessors, (1924), 1909 states have call successors, (1924) [2023-04-03 06:24:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6509 states to 6509 states and 8481 transitions. [2023-04-03 06:24:56,368 INFO L78 Accepts]: Start accepts. Automaton has 6509 states and 8481 transitions. Word has length 160 [2023-04-03 06:24:56,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:24:56,370 INFO L495 AbstractCegarLoop]: Abstraction has 6509 states and 8481 transitions. [2023-04-03 06:24:56,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:24:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states and 8481 transitions. [2023-04-03 06:24:56,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-03 06:24:56,374 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:24:56,374 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:24:56,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:24:56,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:24:56,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:24:56,376 INFO L85 PathProgramCache]: Analyzing trace with hash -220953369, now seen corresponding path program 1 times [2023-04-03 06:24:56,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:24:56,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586003425] [2023-04-03 06:24:56,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:24:56,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:24:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:24:56,728 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:24:56,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:24:56,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586003425] [2023-04-03 06:24:56,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586003425] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:24:56,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:24:56,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:24:56,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319795756] [2023-04-03 06:24:56,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:24:56,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:24:56,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:24:56,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:24:56,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:24:56,731 INFO L87 Difference]: Start difference. First operand 6509 states and 8481 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:24:59,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:01,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:03,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:06,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:08,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:10,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:12,234 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 [] [2023-04-03 06:25:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:25:12,309 INFO L93 Difference]: Finished difference Result 11662 states and 15145 transitions. [2023-04-03 06:25:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:25:12,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2023-04-03 06:25:12,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:25:12,337 INFO L225 Difference]: With dead ends: 11662 [2023-04-03 06:25:12,338 INFO L226 Difference]: Without dead ends: 6552 [2023-04-03 06:25:12,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:25:12,356 INFO L413 NwaCegarLoop]: 1773 mSDtfsCounter, 1810 mSDsluCounter, 5146 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 6919 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:25:12,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1814 Valid, 6919 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 819 Invalid, 7 Unknown, 0 Unchecked, 15.3s Time] [2023-04-03 06:25:12,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2023-04-03 06:25:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 6517. [2023-04-03 06:25:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6517 states, 3753 states have (on average 1.2400746069810817) internal successors, (4654), 3872 states have internal predecessors, (4654), 1909 states have call successors, (1909), 859 states have call predecessors, (1909), 854 states have return successors, (1922), 1846 states have call predecessors, (1922), 1907 states have call successors, (1922) [2023-04-03 06:25:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6517 states to 6517 states and 8485 transitions. [2023-04-03 06:25:12,704 INFO L78 Accepts]: Start accepts. Automaton has 6517 states and 8485 transitions. Word has length 161 [2023-04-03 06:25:12,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:25:12,705 INFO L495 AbstractCegarLoop]: Abstraction has 6517 states and 8485 transitions. [2023-04-03 06:25:12,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:25:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 6517 states and 8485 transitions. [2023-04-03 06:25:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-03 06:25:12,709 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:25:12,709 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:25:12,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:25:12,709 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:25:12,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:25:12,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2101086777, now seen corresponding path program 1 times [2023-04-03 06:25:12,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:25:12,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766165182] [2023-04-03 06:25:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:25:12,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:25:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:25:12,999 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:25:12,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:25:13,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766165182] [2023-04-03 06:25:13,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766165182] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:25:13,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:25:13,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:25:13,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626756669] [2023-04-03 06:25:13,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:25:13,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:25:13,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:25:13,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:25:13,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:25:13,002 INFO L87 Difference]: Start difference. First operand 6517 states and 8485 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:25:15,468 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 [] [2023-04-03 06:25:17,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:19,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:22,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:24,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:26,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:28,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:28,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:25:28,502 INFO L93 Difference]: Finished difference Result 11035 states and 14318 transitions. [2023-04-03 06:25:28,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:25:28,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2023-04-03 06:25:28,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:25:28,527 INFO L225 Difference]: With dead ends: 11035 [2023-04-03 06:25:28,527 INFO L226 Difference]: Without dead ends: 5915 [2023-04-03 06:25:28,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:25:28,544 INFO L413 NwaCegarLoop]: 1773 mSDtfsCounter, 1808 mSDsluCounter, 5146 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 6919 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:25:28,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 6919 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 819 Invalid, 7 Unknown, 0 Unchecked, 15.3s Time] [2023-04-03 06:25:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2023-04-03 06:25:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5886. [2023-04-03 06:25:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5886 states, 3384 states have (on average 1.2420212765957446) internal successors, (4203), 3489 states have internal predecessors, (4203), 1721 states have call successors, (1721), 785 states have call predecessors, (1721), 780 states have return successors, (1734), 1664 states have call predecessors, (1734), 1719 states have call successors, (1734) [2023-04-03 06:25:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5886 states to 5886 states and 7658 transitions. [2023-04-03 06:25:28,722 INFO L78 Accepts]: Start accepts. Automaton has 5886 states and 7658 transitions. Word has length 162 [2023-04-03 06:25:28,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:25:28,722 INFO L495 AbstractCegarLoop]: Abstraction has 5886 states and 7658 transitions. [2023-04-03 06:25:28,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-04-03 06:25:28,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5886 states and 7658 transitions. [2023-04-03 06:25:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-03 06:25:28,726 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:25:28,726 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:25:28,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:25:28,727 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:25:28,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:25:28,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1644443341, now seen corresponding path program 1 times [2023-04-03 06:25:28,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:25:28,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475053694] [2023-04-03 06:25:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:25:28,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:25:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:25:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-04-03 06:25:29,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:25:29,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475053694] [2023-04-03 06:25:29,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475053694] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:25:29,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741648232] [2023-04-03 06:25:29,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:25:29,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:25:29,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:25:29,408 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) [2023-04-03 06:25:29,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:25:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:25:30,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 3395 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:25:30,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:25:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:25:30,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:25:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741648232] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:25:30,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:25:30,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-03 06:25:30,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770628967] [2023-04-03 06:25:30,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:25:30,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:25:30,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:25:30,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:25:30,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:25:30,323 INFO L87 Difference]: Start difference. First operand 5886 states and 7658 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:25:33,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:35,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:37,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:39,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:41,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:42,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:44,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:46,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:48,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:50,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:25:52,665 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 [] [2023-04-03 06:25:54,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:25:54,385 INFO L93 Difference]: Finished difference Result 13992 states and 18221 transitions. [2023-04-03 06:25:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:25:54,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 176 [2023-04-03 06:25:54,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:25:54,439 INFO L225 Difference]: With dead ends: 13992 [2023-04-03 06:25:54,440 INFO L226 Difference]: Without dead ends: 9648 [2023-04-03 06:25:54,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2023-04-03 06:25:54,450 INFO L413 NwaCegarLoop]: 2764 mSDtfsCounter, 1849 mSDsluCounter, 12671 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 15435 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:25:54,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 15435 Invalid, 1853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1841 Invalid, 10 Unknown, 0 Unchecked, 23.7s Time] [2023-04-03 06:25:54,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9648 states. [2023-04-03 06:25:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9648 to 9585. [2023-04-03 06:25:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9585 states, 5515 states have (on average 1.2438803263825928) internal successors, (6860), 5694 states have internal predecessors, (6860), 2795 states have call successors, (2795), 1277 states have call predecessors, (2795), 1274 states have return successors, (2838), 2698 states have call predecessors, (2838), 2793 states have call successors, (2838) [2023-04-03 06:25:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9585 states to 9585 states and 12493 transitions. [2023-04-03 06:25:54,718 INFO L78 Accepts]: Start accepts. Automaton has 9585 states and 12493 transitions. Word has length 176 [2023-04-03 06:25:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:25:54,719 INFO L495 AbstractCegarLoop]: Abstraction has 9585 states and 12493 transitions. [2023-04-03 06:25:54,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:25:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 9585 states and 12493 transitions. [2023-04-03 06:25:54,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-04-03 06:25:54,723 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:25:54,724 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:25:54,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-03 06:25:54,935 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,SelfDestructingSolverStorable5 [2023-04-03 06:25:54,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:25:54,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:25:54,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1534214386, now seen corresponding path program 1 times [2023-04-03 06:25:54,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:25:54,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223108037] [2023-04-03 06:25:54,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:25:54,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:25:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:25:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:25:55,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:25:55,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223108037] [2023-04-03 06:25:55,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223108037] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:25:55,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439400490] [2023-04-03 06:25:55,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:25:55,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:25:55,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:25:55,467 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) [2023-04-03 06:25:55,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:25:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:25:56,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 3397 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:25:56,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:25:56,350 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:25:56,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:25:56,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439400490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:25:56,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:25:56,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:25:56,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570427830] [2023-04-03 06:25:56,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:25:56,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:25:56,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:25:56,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:25:56,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:25:56,352 INFO L87 Difference]: Start difference. First operand 9585 states and 12493 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:25:59,249 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 [] [2023-04-03 06:26:01,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:03,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:05,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:08,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:10,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:12,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:14,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:16,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:18,353 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 [] [2023-04-03 06:26:20,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:26:20,260 INFO L93 Difference]: Finished difference Result 21412 states and 27917 transitions. [2023-04-03 06:26:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:26:20,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 177 [2023-04-03 06:26:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:26:20,370 INFO L225 Difference]: With dead ends: 21412 [2023-04-03 06:26:20,370 INFO L226 Difference]: Without dead ends: 13369 [2023-04-03 06:26:20,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:26:20,400 INFO L413 NwaCegarLoop]: 2825 mSDtfsCounter, 1849 mSDsluCounter, 12903 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 15728 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:26:20,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 15728 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1868 Invalid, 10 Unknown, 0 Unchecked, 23.5s Time] [2023-04-03 06:26:20,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13369 states. [2023-04-03 06:26:20,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13369 to 13294. [2023-04-03 06:26:20,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13294 states, 7652 states have (on average 1.244511238891793) internal successors, (9523), 7911 states have internal predecessors, (9523), 3869 states have call successors, (3869), 1769 states have call predecessors, (3869), 1772 states have return successors, (3956), 3730 states have call predecessors, (3956), 3867 states have call successors, (3956) [2023-04-03 06:26:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13294 states to 13294 states and 17348 transitions. [2023-04-03 06:26:20,955 INFO L78 Accepts]: Start accepts. Automaton has 13294 states and 17348 transitions. Word has length 177 [2023-04-03 06:26:20,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:26:20,956 INFO L495 AbstractCegarLoop]: Abstraction has 13294 states and 17348 transitions. [2023-04-03 06:26:20,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:26:20,956 INFO L276 IsEmpty]: Start isEmpty. Operand 13294 states and 17348 transitions. [2023-04-03 06:26:20,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-03 06:26:20,962 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:26:20,962 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:26:20,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 06:26:21,191 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,SelfDestructingSolverStorable6 [2023-04-03 06:26:21,192 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:26:21,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:26:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1835038956, now seen corresponding path program 1 times [2023-04-03 06:26:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:26:21,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814571183] [2023-04-03 06:26:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:26:21,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:26:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:26:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:26:21,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:26:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814571183] [2023-04-03 06:26:21,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814571183] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:26:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319313252] [2023-04-03 06:26:21,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:26:21,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:26:21,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:26:21,789 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) [2023-04-03 06:26:21,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 06:26:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:26:22,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 3399 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:26:22,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:26:22,672 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:26:22,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:26:22,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319313252] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:26:22,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:26:22,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:26:22,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346050747] [2023-04-03 06:26:22,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:26:22,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:26:22,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:26:22,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:26:22,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:26:22,674 INFO L87 Difference]: Start difference. First operand 13294 states and 17348 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:26:25,660 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 [] [2023-04-03 06:26:27,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:29,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:31,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:33,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:35,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:37,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:39,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:41,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:43,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:45,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:26:46,777 INFO L93 Difference]: Finished difference Result 28826 states and 37625 transitions. [2023-04-03 06:26:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:26:46,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 178 [2023-04-03 06:26:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:26:46,853 INFO L225 Difference]: With dead ends: 28826 [2023-04-03 06:26:46,853 INFO L226 Difference]: Without dead ends: 17074 [2023-04-03 06:26:46,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:26:46,893 INFO L413 NwaCegarLoop]: 2825 mSDtfsCounter, 1849 mSDsluCounter, 12903 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 15728 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:26:46,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 15728 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1868 Invalid, 10 Unknown, 0 Unchecked, 23.6s Time] [2023-04-03 06:26:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17074 states. [2023-04-03 06:26:47,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17074 to 13296. [2023-04-03 06:26:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13296 states, 7654 states have (on average 1.2444473477920042) internal successors, (9525), 7911 states have internal predecessors, (9525), 3869 states have call successors, (3869), 1769 states have call predecessors, (3869), 1772 states have return successors, (3956), 3732 states have call predecessors, (3956), 3867 states have call successors, (3956) [2023-04-03 06:26:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13296 states to 13296 states and 17350 transitions. [2023-04-03 06:26:47,506 INFO L78 Accepts]: Start accepts. Automaton has 13296 states and 17350 transitions. Word has length 178 [2023-04-03 06:26:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:26:47,507 INFO L495 AbstractCegarLoop]: Abstraction has 13296 states and 17350 transitions. [2023-04-03 06:26:47,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:26:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 13296 states and 17350 transitions. [2023-04-03 06:26:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-04-03 06:26:47,514 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:26:47,514 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:26:47,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 06:26:47,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:26:47,731 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:26:47,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:26:47,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1140134105, now seen corresponding path program 1 times [2023-04-03 06:26:47,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:26:47,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22035164] [2023-04-03 06:26:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:26:47,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:26:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:26:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:26:48,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:26:48,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22035164] [2023-04-03 06:26:48,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22035164] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:26:48,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061867460] [2023-04-03 06:26:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:26:48,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:26:48,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:26:48,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:26:48,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 06:26:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:26:48,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 3401 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:26:49,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:26:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:26:49,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:26:49,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061867460] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:26:49,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:26:49,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:26:49,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562382866] [2023-04-03 06:26:49,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:26:49,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:26:49,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:26:49,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:26:49,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:26:49,089 INFO L87 Difference]: Start difference. First operand 13296 states and 17350 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:26:51,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:53,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:55,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:57,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:26:59,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:27:02,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:27:04,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:27:06,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:27:08,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:27:10,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:27:12,047 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 [] [2023-04-03 06:27:13,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:27:13,563 INFO L93 Difference]: Finished difference Result 28832 states and 37627 transitions. [2023-04-03 06:27:13,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:27:13,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 179 [2023-04-03 06:27:13,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:27:13,634 INFO L225 Difference]: With dead ends: 28832 [2023-04-03 06:27:13,634 INFO L226 Difference]: Without dead ends: 17078 [2023-04-03 06:27:13,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:27:13,667 INFO L413 NwaCegarLoop]: 2244 mSDtfsCounter, 1849 mSDsluCounter, 10576 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 12820 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:27:13,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 12820 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1556 Invalid, 11 Unknown, 0 Unchecked, 24.0s Time] [2023-04-03 06:27:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17078 states. [2023-04-03 06:27:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17078 to 13298. [2023-04-03 06:27:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 7656 states have (on average 1.2443834900731452) internal successors, (9527), 7911 states have internal predecessors, (9527), 3869 states have call successors, (3869), 1769 states have call predecessors, (3869), 1772 states have return successors, (3952), 3734 states have call predecessors, (3952), 3867 states have call successors, (3952) [2023-04-03 06:27:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 17348 transitions. [2023-04-03 06:27:14,250 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 17348 transitions. Word has length 179 [2023-04-03 06:27:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:27:14,250 INFO L495 AbstractCegarLoop]: Abstraction has 13298 states and 17348 transitions. [2023-04-03 06:27:14,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:27:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 17348 transitions. [2023-04-03 06:27:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-03 06:27:14,256 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:27:14,256 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:27:14,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 06:27:14,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:27:14,469 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:27:14,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:27:14,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1603371999, now seen corresponding path program 1 times [2023-04-03 06:27:14,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:27:14,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420405625] [2023-04-03 06:27:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:27:14,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:27:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:27:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-04-03 06:27:15,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:27:15,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420405625] [2023-04-03 06:27:15,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420405625] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:27:15,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377213224] [2023-04-03 06:27:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:27:15,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:27:15,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:27:15,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:27:15,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 06:27:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:27:15,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 3492 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-03 06:27:15,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:27:16,035 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-04-03 06:27:16,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:27:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-04-03 06:27:16,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377213224] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 06:27:16,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [755272429] [2023-04-03 06:27:16,537 INFO L159 IcfgInterpreter]: Started Sifa with 110 locations of interest [2023-04-03 06:27:16,537 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 06:27:16,540 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 06:27:16,543 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 06:27:16,544 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 06:27:39,930 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 259 for LOIs [2023-04-03 06:27:49,323 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 293 for LOIs