/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 01:15:24,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:15:24,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:15:24,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:15:24,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:15:24,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:15:24,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:15:24,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:15:24,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:15:24,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:15:24,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:15:24,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:15:24,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:15:24,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:15:24,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:15:24,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:15:24,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:15:24,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:15:24,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:15:24,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:15:24,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:15:24,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:15:24,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:15:24,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:15:24,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:15:24,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:15:24,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:15:24,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:15:24,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:15:24,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:15:24,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:15:24,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:15:24,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:15:24,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:15:24,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:15:24,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:15:24,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:15:24,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:15:24,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:15:24,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:15:24,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:15:24,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 01:15:24,340 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:15:24,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:15:24,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:15:24,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:15:24,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:15:24,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:15:24,342 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:15:24,342 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:15:24,342 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:15:24,342 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:15:24,343 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:15:24,343 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:15:24,343 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:15:24,343 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:15:24,343 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:15:24,344 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:15:24,344 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:15:24,344 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:15:24,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:15:24,344 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:15:24,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:15:24,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:15:24,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:15:24,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:15:24,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:15:24,346 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:15:24,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:15:24,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:15:24,346 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:15:24,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:15:24,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:15:24,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:15:24,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:15:24,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:15:24,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:15:24,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:15:24,571 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:15:24,572 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:15:24,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-04-01 01:15:25,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:15:26,047 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:15:26,047 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-04-01 01:15:26,085 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1396f6b/35c260bff51d4ddc88f26b1d33ebf1ff/FLAG577c149d6 [2023-04-01 01:15:26,095 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1396f6b/35c260bff51d4ddc88f26b1d33ebf1ff [2023-04-01 01:15:26,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:15:26,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:15:26,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:15:26,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:15:26,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:15:26,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:15:26" (1/1) ... [2023-04-01 01:15:26,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d501f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:26, skipping insertion in model container [2023-04-01 01:15:26,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:15:26" (1/1) ... [2023-04-01 01:15:26,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:15:26,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:15:26,912 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2023-04-01 01:15:27,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:15:27,386 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:15:27,490 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2023-04-01 01:15:27,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:15:27,724 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:15:27,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27 WrapperNode [2023-04-01 01:15:27,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:15:27,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:15:27,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:15:27,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:15:27,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:27,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:27,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:27,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:27,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:27,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:27,973 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:27,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:28,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:15:28,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:15:28,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:15:28,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:15:28,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (1/1) ... [2023-04-01 01:15:28,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:15:28,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:15:28,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 01:15:28,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 01:15:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:15:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:15:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2023-04-01 01:15:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 01:15:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 01:15:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2023-04-01 01:15:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-04-01 01:15:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2023-04-01 01:15:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2023-04-01 01:15:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-04-01 01:15:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-04-01 01:15:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-04-01 01:15:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-04-01 01:15:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-04-01 01:15:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-04-01 01:15:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-04-01 01:15:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2023-04-01 01:15:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure crc16 [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_get_stb_state [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_audio_pes2ts_cb [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_video_pes2ts_cb [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_pva [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_filter [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_packet [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure swap_bytes [2023-04-01 01:15:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb_frame [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb_frame_list [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_interface [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_ts_feed [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_sec_feed [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_feed [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_alloc_iso_urbs [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_tasklet [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2023-04-01 01:15:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_v_pes [2023-04-01 01:15:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_usb [2023-04-01 01:15:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_boot_dsp [2023-04-01 01:15:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_stb [2023-04-01 01:15:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-04-01 01:15:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-04-01 01:15:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_rc [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_tasklet [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_filters [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_filters [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure fe_send_command [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-04-01 01:15:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_driver_init [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_driver_exit [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_5 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_6 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_8 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_9 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_10 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_11 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2023-04-01 01:15:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_13 [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_15 [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_16 [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-01 01:15:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-01 01:15:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-01 01:15:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-01 01:15:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-01 01:15:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-01 01:15:28,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-01 01:15:28,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-01 01:15:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-01 01:15:28,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_init [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_init [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-04-01 01:15:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_init [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_adapter [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_frontend [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusbdecfe_dvbs_attach [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusbdecfe_dvbt_attach [2023-04-01 01:15:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 01:15:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 01:15:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:15:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:15:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:15:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:15:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 01:15:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_13 [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_15 [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_16 [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_10 [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_6 [2023-04-01 01:15:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_8 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_5 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_9 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_11 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:15:28,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:15:28,098 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 01:15:28,098 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 01:15:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 01:15:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 01:15:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2023-04-01 01:15:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_adapter [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_init [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_init [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_frontend [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_init [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure ttusbdecfe_dvbs_attach [2023-04-01 01:15:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure ttusbdecfe_dvbt_attach [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure crc16 [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_get_stb_state [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_audio_pes2ts_cb [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_video_pes2ts_cb [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_pva [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_filter [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_packet [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure swap_bytes [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb_frame [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb_frame_list [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_interface [2023-04-01 01:15:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_ts_feed [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_sec_feed [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_feed [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_alloc_iso_urbs [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_tasklet [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_v_pes [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_usb [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_boot_dsp [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_stb [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_rc [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_tasklet [2023-04-01 01:15:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_filters [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_filters [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure fe_send_command [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_driver_init [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_driver_exit [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:15:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:15:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:15:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:15:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:15:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:15:28,729 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:15:28,732 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:15:28,861 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 01:15:31,948 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-01 01:15:33,879 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:15:34,575 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:15:34,575 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 01:15:34,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:15:34 BoogieIcfgContainer [2023-04-01 01:15:34,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:15:34,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:15:34,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:15:34,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:15:34,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:15:26" (1/3) ... [2023-04-01 01:15:34,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e16a3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:15:34, skipping insertion in model container [2023-04-01 01:15:34,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:15:27" (2/3) ... [2023-04-01 01:15:34,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e16a3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:15:34, skipping insertion in model container [2023-04-01 01:15:34,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:15:34" (3/3) ... [2023-04-01 01:15:34,586 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-04-01 01:15:34,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:15:34,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:15:34,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:15:34,671 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;@d1ec032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:15:34,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:15:34,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 1467 states, 877 states have (on average 1.2919042189281642) internal successors, (1133), 912 states have internal predecessors, (1133), 422 states have call successors, (422), 161 states have call predecessors, (422), 159 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) [2023-04-01 01:15:34,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-01 01:15:34,690 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:34,691 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:34,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:34,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:34,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1564473080, now seen corresponding path program 1 times [2023-04-01 01:15:34,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:34,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052437820] [2023-04-01 01:15:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:34,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-01 01:15:35,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:35,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052437820] [2023-04-01 01:15:35,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052437820] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:35,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:35,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:15:35,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716030197] [2023-04-01 01:15:35,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:35,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:35,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:35,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:35,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:35,236 INFO L87 Difference]: Start difference. First operand has 1467 states, 877 states have (on average 1.2919042189281642) internal successors, (1133), 912 states have internal predecessors, (1133), 422 states have call successors, (422), 161 states have call predecessors, (422), 159 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-01 01:15:36,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:36,315 INFO L93 Difference]: Finished difference Result 3863 states and 5160 transitions. [2023-04-01 01:15:36,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:36,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 64 [2023-04-01 01:15:36,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:36,342 INFO L225 Difference]: With dead ends: 3863 [2023-04-01 01:15:36,343 INFO L226 Difference]: Without dead ends: 2541 [2023-04-01 01:15:36,353 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 [2023-04-01 01:15:36,355 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1681 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:36,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 3180 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 01:15:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2023-04-01 01:15:36,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2541. [2023-04-01 01:15:36,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 1516 states have (on average 1.2678100263852243) internal successors, (1922), 1558 states have internal predecessors, (1922), 733 states have call successors, (733), 294 states have call predecessors, (733), 291 states have return successors, (726), 708 states have call predecessors, (726), 726 states have call successors, (726) [2023-04-01 01:15:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3381 transitions. [2023-04-01 01:15:36,605 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3381 transitions. Word has length 64 [2023-04-01 01:15:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:36,606 INFO L495 AbstractCegarLoop]: Abstraction has 2541 states and 3381 transitions. [2023-04-01 01:15:36,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-01 01:15:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3381 transitions. [2023-04-01 01:15:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-01 01:15:36,609 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:36,610 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:36,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 01:15:36,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:36,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash 942931957, now seen corresponding path program 1 times [2023-04-01 01:15:36,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:36,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081093669] [2023-04-01 01:15:36,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:36,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-01 01:15:37,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:37,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081093669] [2023-04-01 01:15:37,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081093669] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:37,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:37,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:15:37,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328043035] [2023-04-01 01:15:37,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:37,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:37,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:37,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:37,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:37,219 INFO L87 Difference]: Start difference. First operand 2541 states and 3381 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:38,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:38,572 INFO L93 Difference]: Finished difference Result 4990 states and 6722 transitions. [2023-04-01 01:15:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:38,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 77 [2023-04-01 01:15:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:38,601 INFO L225 Difference]: With dead ends: 4990 [2023-04-01 01:15:38,601 INFO L226 Difference]: Without dead ends: 4987 [2023-04-01 01:15:38,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:38,607 INFO L413 NwaCegarLoop]: 2019 mSDtfsCounter, 1657 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:38,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 3579 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 01:15:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2023-04-01 01:15:38,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4975. [2023-04-01 01:15:38,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4975 states, 2974 states have (on average 1.269334229993275) internal successors, (3775), 3058 states have internal predecessors, (3775), 1436 states have call successors, (1436), 574 states have call predecessors, (1436), 564 states have return successors, (1494), 1382 states have call predecessors, (1494), 1428 states have call successors, (1494) [2023-04-01 01:15:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4975 states to 4975 states and 6705 transitions. [2023-04-01 01:15:38,804 INFO L78 Accepts]: Start accepts. Automaton has 4975 states and 6705 transitions. Word has length 77 [2023-04-01 01:15:38,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:38,807 INFO L495 AbstractCegarLoop]: Abstraction has 4975 states and 6705 transitions. [2023-04-01 01:15:38,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4975 states and 6705 transitions. [2023-04-01 01:15:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-01 01:15:38,814 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:38,814 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:38,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 01:15:38,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:38,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash -834671479, now seen corresponding path program 1 times [2023-04-01 01:15:38,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:38,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718991553] [2023-04-01 01:15:38,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-01 01:15:39,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:39,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718991553] [2023-04-01 01:15:39,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718991553] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:39,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:39,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:15:39,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118757447] [2023-04-01 01:15:39,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:39,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:39,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:39,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:39,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:39,153 INFO L87 Difference]: Start difference. First operand 4975 states and 6705 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:39,733 INFO L93 Difference]: Finished difference Result 4977 states and 6706 transitions. [2023-04-01 01:15:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:39,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 78 [2023-04-01 01:15:39,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:39,765 INFO L225 Difference]: With dead ends: 4977 [2023-04-01 01:15:39,765 INFO L226 Difference]: Without dead ends: 4974 [2023-04-01 01:15:39,770 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 [2023-04-01 01:15:39,770 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 1697 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:39,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 1574 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 01:15:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4974 states. [2023-04-01 01:15:39,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4974 to 4974. [2023-04-01 01:15:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4974 states, 2974 states have (on average 1.2689979825151312) internal successors, (3774), 3057 states have internal predecessors, (3774), 1435 states have call successors, (1435), 574 states have call predecessors, (1435), 564 states have return successors, (1494), 1382 states have call predecessors, (1494), 1428 states have call successors, (1494) [2023-04-01 01:15:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4974 states to 4974 states and 6703 transitions. [2023-04-01 01:15:40,011 INFO L78 Accepts]: Start accepts. Automaton has 4974 states and 6703 transitions. Word has length 78 [2023-04-01 01:15:40,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:40,011 INFO L495 AbstractCegarLoop]: Abstraction has 4974 states and 6703 transitions. [2023-04-01 01:15:40,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4974 states and 6703 transitions. [2023-04-01 01:15:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-04-01 01:15:40,014 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:40,014 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:40,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 01:15:40,014 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:40,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:40,014 INFO L85 PathProgramCache]: Analyzing trace with hash -105798280, now seen corresponding path program 1 times [2023-04-01 01:15:40,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:40,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700197460] [2023-04-01 01:15:40,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:40,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-01 01:15:40,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700197460] [2023-04-01 01:15:40,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700197460] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:40,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:40,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:15:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437780876] [2023-04-01 01:15:40,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:40,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:40,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:40,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:40,148 INFO L87 Difference]: Start difference. First operand 4974 states and 6703 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:40,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:40,735 INFO L93 Difference]: Finished difference Result 4976 states and 6704 transitions. [2023-04-01 01:15:40,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:40,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 79 [2023-04-01 01:15:40,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:40,763 INFO L225 Difference]: With dead ends: 4976 [2023-04-01 01:15:40,763 INFO L226 Difference]: Without dead ends: 4973 [2023-04-01 01:15:40,767 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 [2023-04-01 01:15:40,767 INFO L413 NwaCegarLoop]: 1571 mSDtfsCounter, 1694 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:40,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 1572 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 01:15:40,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2023-04-01 01:15:40,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4973. [2023-04-01 01:15:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 2974 states have (on average 1.2686617350369873) internal successors, (3773), 3056 states have internal predecessors, (3773), 1434 states have call successors, (1434), 574 states have call predecessors, (1434), 564 states have return successors, (1494), 1382 states have call predecessors, (1494), 1428 states have call successors, (1494) [2023-04-01 01:15:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 6701 transitions. [2023-04-01 01:15:41,012 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 6701 transitions. Word has length 79 [2023-04-01 01:15:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:41,013 INFO L495 AbstractCegarLoop]: Abstraction has 4973 states and 6701 transitions. [2023-04-01 01:15:41,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 6701 transitions. [2023-04-01 01:15:41,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-01 01:15:41,014 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:41,014 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:41,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 01:15:41,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:41,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:41,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1014439276, now seen corresponding path program 1 times [2023-04-01 01:15:41,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:41,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759834352] [2023-04-01 01:15:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:41,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-01 01:15:41,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:41,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759834352] [2023-04-01 01:15:41,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759834352] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:41,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:41,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:15:41,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067475781] [2023-04-01 01:15:41,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:41,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:41,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:41,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:41,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:41,121 INFO L87 Difference]: Start difference. First operand 4973 states and 6701 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:41,646 INFO L93 Difference]: Finished difference Result 4975 states and 6702 transitions. [2023-04-01 01:15:41,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:41,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 80 [2023-04-01 01:15:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:41,670 INFO L225 Difference]: With dead ends: 4975 [2023-04-01 01:15:41,670 INFO L226 Difference]: Without dead ends: 4972 [2023-04-01 01:15:41,673 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 [2023-04-01 01:15:41,674 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 1691 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:41,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1570 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 01:15:41,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4972 states. [2023-04-01 01:15:41,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4972 to 4972. [2023-04-01 01:15:41,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4972 states, 2974 states have (on average 1.2683254875588432) internal successors, (3772), 3055 states have internal predecessors, (3772), 1433 states have call successors, (1433), 574 states have call predecessors, (1433), 564 states have return successors, (1494), 1382 states have call predecessors, (1494), 1428 states have call successors, (1494) [2023-04-01 01:15:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 6699 transitions. [2023-04-01 01:15:41,929 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 6699 transitions. Word has length 80 [2023-04-01 01:15:41,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:41,929 INFO L495 AbstractCegarLoop]: Abstraction has 4972 states and 6699 transitions. [2023-04-01 01:15:41,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 6699 transitions. [2023-04-01 01:15:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-01 01:15:41,933 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:41,933 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:41,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 01:15:41,934 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:41,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:41,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1382070011, now seen corresponding path program 1 times [2023-04-01 01:15:41,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:41,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117443305] [2023-04-01 01:15:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:41,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-01 01:15:42,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:42,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117443305] [2023-04-01 01:15:42,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117443305] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:42,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:42,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:15:42,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892654450] [2023-04-01 01:15:42,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:42,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:42,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:42,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:42,064 INFO L87 Difference]: Start difference. First operand 4972 states and 6699 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:42,705 INFO L93 Difference]: Finished difference Result 4974 states and 6700 transitions. [2023-04-01 01:15:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:42,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2023-04-01 01:15:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:42,725 INFO L225 Difference]: With dead ends: 4974 [2023-04-01 01:15:42,725 INFO L226 Difference]: Without dead ends: 4954 [2023-04-01 01:15:42,727 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 [2023-04-01 01:15:42,728 INFO L413 NwaCegarLoop]: 1568 mSDtfsCounter, 1688 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:42,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 1569 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 01:15:42,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2023-04-01 01:15:42,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4954. [2023-04-01 01:15:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 2964 states have (on average 1.2682186234817814) internal successors, (3759), 3044 states have internal predecessors, (3759), 1428 states have call successors, (1428), 570 states have call predecessors, (1428), 561 states have return successors, (1491), 1379 states have call predecessors, (1491), 1425 states have call successors, (1491) [2023-04-01 01:15:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 6678 transitions. [2023-04-01 01:15:42,976 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 6678 transitions. Word has length 81 [2023-04-01 01:15:42,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:42,976 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 6678 transitions. [2023-04-01 01:15:42,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:15:42,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 6678 transitions. [2023-04-01 01:15:42,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-04-01 01:15:42,981 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:42,981 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:42,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 01:15:42,981 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:42,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash 739746164, now seen corresponding path program 1 times [2023-04-01 01:15:42,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:42,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485767569] [2023-04-01 01:15:42,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-04-01 01:15:43,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:43,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485767569] [2023-04-01 01:15:43,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485767569] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:43,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:43,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:15:43,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785258190] [2023-04-01 01:15:43,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:43,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:43,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:43,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:43,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:15:43,143 INFO L87 Difference]: Start difference. First operand 4954 states and 6678 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 01:15:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:44,006 INFO L93 Difference]: Finished difference Result 7830 states and 10542 transitions. [2023-04-01 01:15:44,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:44,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 190 [2023-04-01 01:15:44,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:44,024 INFO L225 Difference]: With dead ends: 7830 [2023-04-01 01:15:44,024 INFO L226 Difference]: Without dead ends: 2906 [2023-04-01 01:15:44,040 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 [2023-04-01 01:15:44,041 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 211 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:44,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 3101 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 01:15:44,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2023-04-01 01:15:44,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2878. [2023-04-01 01:15:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2878 states, 1735 states have (on average 1.2731988472622477) internal successors, (2209), 1775 states have internal predecessors, (2209), 813 states have call successors, (813), 335 states have call predecessors, (813), 329 states have return successors, (843), 787 states have call predecessors, (843), 810 states have call successors, (843) [2023-04-01 01:15:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 3865 transitions. [2023-04-01 01:15:44,167 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 3865 transitions. Word has length 190 [2023-04-01 01:15:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:44,167 INFO L495 AbstractCegarLoop]: Abstraction has 2878 states and 3865 transitions. [2023-04-01 01:15:44,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 01:15:44,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 3865 transitions. [2023-04-01 01:15:44,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-04-01 01:15:44,172 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:44,172 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:44,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 01:15:44,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:44,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash 756570339, now seen corresponding path program 1 times [2023-04-01 01:15:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:44,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246441463] [2023-04-01 01:15:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:44,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-01 01:15:44,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:44,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246441463] [2023-04-01 01:15:44,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246441463] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:44,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:15:44,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 01:15:44,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81958063] [2023-04-01 01:15:44,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:44,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 01:15:44,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:44,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 01:15:44,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 01:15:44,394 INFO L87 Difference]: Start difference. First operand 2878 states and 3865 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2023-04-01 01:15:46,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:46,017 INFO L93 Difference]: Finished difference Result 5434 states and 7409 transitions. [2023-04-01 01:15:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:46,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 207 [2023-04-01 01:15:46,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:46,027 INFO L225 Difference]: With dead ends: 5434 [2023-04-01 01:15:46,027 INFO L226 Difference]: Without dead ends: 2703 [2023-04-01 01:15:46,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 01:15:46,036 INFO L413 NwaCegarLoop]: 1452 mSDtfsCounter, 1562 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:46,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 2215 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 01:15:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2023-04-01 01:15:46,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2703. [2023-04-01 01:15:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 1637 states have (on average 1.2748930971288943) internal successors, (2087), 1674 states have internal predecessors, (2087), 765 states have call successors, (765), 305 states have call predecessors, (765), 300 states have return successors, (792), 741 states have call predecessors, (792), 762 states have call successors, (792) [2023-04-01 01:15:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3644 transitions. [2023-04-01 01:15:46,180 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3644 transitions. Word has length 207 [2023-04-01 01:15:46,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:46,180 INFO L495 AbstractCegarLoop]: Abstraction has 2703 states and 3644 transitions. [2023-04-01 01:15:46,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2023-04-01 01:15:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3644 transitions. [2023-04-01 01:15:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-04-01 01:15:46,185 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:46,186 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:46,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 01:15:46,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:46,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:46,186 INFO L85 PathProgramCache]: Analyzing trace with hash -877900782, now seen corresponding path program 1 times [2023-04-01 01:15:46,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:46,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394363708] [2023-04-01 01:15:46,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:46,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-04-01 01:15:46,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:46,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394363708] [2023-04-01 01:15:46,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394363708] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:15:46,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990507881] [2023-04-01 01:15:46,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:46,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:15:46,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:15:46,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:15:46,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 01:15:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:47,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 3094 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-01 01:15:47,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:15:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-01 01:15:47,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:15:47,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990507881] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:47,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:15:47,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-04-01 01:15:47,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584926332] [2023-04-01 01:15:47,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:47,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:47,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:47,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:47,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:15:47,305 INFO L87 Difference]: Start difference. First operand 2703 states and 3644 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 01:15:47,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:47,993 INFO L93 Difference]: Finished difference Result 5263 states and 7198 transitions. [2023-04-01 01:15:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 250 [2023-04-01 01:15:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:48,001 INFO L225 Difference]: With dead ends: 5263 [2023-04-01 01:15:48,001 INFO L226 Difference]: Without dead ends: 2707 [2023-04-01 01:15:48,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:15:48,009 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 2 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:48,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2906 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 01:15:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2023-04-01 01:15:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2705. [2023-04-01 01:15:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 1639 states have (on average 1.2745576571079926) internal successors, (2089), 1676 states have internal predecessors, (2089), 765 states have call successors, (765), 305 states have call predecessors, (765), 300 states have return successors, (792), 741 states have call predecessors, (792), 762 states have call successors, (792) [2023-04-01 01:15:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 3646 transitions. [2023-04-01 01:15:48,119 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 3646 transitions. Word has length 250 [2023-04-01 01:15:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:48,121 INFO L495 AbstractCegarLoop]: Abstraction has 2705 states and 3646 transitions. [2023-04-01 01:15:48,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 01:15:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 3646 transitions. [2023-04-01 01:15:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-04-01 01:15:48,127 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:48,127 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:48,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 01:15:48,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:15:48,338 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:48,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:48,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1510609114, now seen corresponding path program 1 times [2023-04-01 01:15:48,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:48,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155929410] [2023-04-01 01:15:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:48,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-01 01:15:48,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:48,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155929410] [2023-04-01 01:15:48,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155929410] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:15:48,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93085221] [2023-04-01 01:15:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:48,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:15:48,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:15:48,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:15:48,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 01:15:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:49,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-01 01:15:49,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:15:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-01 01:15:49,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:15:49,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93085221] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:15:49,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:15:49,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-04-01 01:15:49,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693645155] [2023-04-01 01:15:49,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:15:49,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:15:49,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:15:49,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:15:49,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:15:49,475 INFO L87 Difference]: Start difference. First operand 2705 states and 3646 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 01:15:50,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:15:50,181 INFO L93 Difference]: Finished difference Result 5265 states and 7198 transitions. [2023-04-01 01:15:50,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:15:50,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 252 [2023-04-01 01:15:50,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:15:50,195 INFO L225 Difference]: With dead ends: 5265 [2023-04-01 01:15:50,195 INFO L226 Difference]: Without dead ends: 2707 [2023-04-01 01:15:50,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:15:50,203 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 0 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 01:15:50,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2908 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 01:15:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2023-04-01 01:15:50,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2707. [2023-04-01 01:15:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 1641 states have (on average 1.2742230347349177) internal successors, (2091), 1678 states have internal predecessors, (2091), 765 states have call successors, (765), 305 states have call predecessors, (765), 300 states have return successors, (792), 741 states have call predecessors, (792), 762 states have call successors, (792) [2023-04-01 01:15:50,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3648 transitions. [2023-04-01 01:15:50,323 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3648 transitions. Word has length 252 [2023-04-01 01:15:50,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:15:50,324 INFO L495 AbstractCegarLoop]: Abstraction has 2707 states and 3648 transitions. [2023-04-01 01:15:50,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 01:15:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3648 transitions. [2023-04-01 01:15:50,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-04-01 01:15:50,330 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:15:50,330 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:15:50,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 01:15:50,539 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,SelfDestructingSolverStorable9 [2023-04-01 01:15:50,540 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:15:50,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:15:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1651317178, now seen corresponding path program 1 times [2023-04-01 01:15:50,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:15:50,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316749478] [2023-04-01 01:15:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:15:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-01 01:15:50,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:15:50,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316749478] [2023-04-01 01:15:50,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316749478] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:15:50,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733921700] [2023-04-01 01:15:50,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:15:50,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:15:50,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:15:50,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:15:50,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 01:15:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:15:51,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 3221 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 01:15:51,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:15:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-01 01:15:51,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 01:15:52,058 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-01 01:15:52,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733921700] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 01:15:52,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [499325965] [2023-04-01 01:15:52,084 INFO L159 IcfgInterpreter]: Started Sifa with 203 locations of interest [2023-04-01 01:15:52,085 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 01:15:52,089 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 01:15:52,092 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 01:15:52,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 01:16:02,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 160 for LOIs [2023-04-01 01:16:06,719 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 165 for LOIs [2023-04-01 01:16:09,156 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 116 for LOIs [2023-04-01 01:16:09,173 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 120 for LOIs [2023-04-01 01:16:09,235 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 133 for LOIs [2023-04-01 01:16:09,265 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 01:16:21,861 WARN L223 SmtUtils]: Spent 12.35s on a formula simplification that was a NOOP. DAG size: 1500 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)