/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-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 [2023-04-03 04:40:09,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:40:09,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:40:09,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:40:09,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:40:09,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:40:09,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:40:09,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:40:09,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:40:09,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:40:09,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:40:09,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:40:09,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:40:09,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:40:09,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:40:09,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:40:09,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:40:09,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:40:09,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:40:09,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:40:09,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:40:09,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:40:09,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:40:09,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:40:09,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:40:09,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:40:09,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:40:09,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:40:09,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:40:09,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:40:09,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:40:09,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:40:09,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:40:09,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:40:09,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:40:09,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:40:09,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:40:09,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:40:09,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:40:09,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:40:09,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:40:09,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 04:40:09,657 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:40:09,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:40:09,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:40:09,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:40:09,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:40:09,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:40:09,658 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:40:09,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:40:09,658 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:40:09,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:40:09,659 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:40:09,659 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:40:09,659 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:40:09,659 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:40:09,659 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:40:09,660 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:40:09,660 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:40:09,660 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:40:09,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:40:09,660 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:40:09,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:40:09,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:40:09,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:40:09,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:40:09,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:40:09,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:40:09,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:40:09,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:40:09,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:40:09,856 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:40:09,857 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:40:09,857 INFO L432 ainManager$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 [2023-04-03 04:40:10,735 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:40:11,102 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:40:11,102 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 [2023-04-03 04:40:11,125 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289e634a8/36c5a57c178e4ea3bf20441070235124/FLAGb5ae1798c [2023-04-03 04:40:11,137 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289e634a8/36c5a57c178e4ea3bf20441070235124 [2023-04-03 04:40:11,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:40:11,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:40:11,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:40:11,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:40:11,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:40:11,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:40:11" (1/1) ... [2023-04-03 04:40:11,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a13a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:11, skipping insertion in model container [2023-04-03 04:40:11,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:40:11" (1/1) ... [2023-04-03 04:40:11,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:40:11,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:40:11,830 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] [2023-04-03 04:40:12,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:40:12,246 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:40:12,341 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] [2023-04-03 04:40:12,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:40:12,497 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:40:12,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12 WrapperNode [2023-04-03 04:40:12,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:40:12,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:40:12,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:40:12,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:40:12,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:40:12,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:40:12,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:40:12,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:40:12,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (1/1) ... [2023-04-03 04:40:12,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:40:12,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:40:12,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 04:40:12,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 04:40:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-03 04:40:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-04-03 04:40:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-04-03 04:40:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 04:40:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-03 04:40:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 04:40:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 04:40:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-04-03 04:40:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-04-03 04:40:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure crc16 [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_get_stb_state [2023-04-03 04:40:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_audio_pes2ts_cb [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_video_pes2ts_cb [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_pva [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_filter [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_packet [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure swap_bytes [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb_frame [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb_frame_list [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_interface [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2023-04-03 04:40:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_ts_feed [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_sec_feed [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_feed [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_alloc_iso_urbs [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_tasklet [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_v_pes [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_usb [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_boot_dsp [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_stb [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_rc [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_tasklet [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_filters [2023-04-03 04:40:12,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_filters [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure fe_send_command [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_driver_init [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_driver_exit [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_5 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_6 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_8 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_9 [2023-04-03 04:40:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_10 [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_11 [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_13 [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_15 [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_16 [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-03 04:40:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_init [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-04-03 04:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_init [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_init [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_adapter [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_frontend [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-04-03 04:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusbdecfe_dvbs_attach [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusbdecfe_dvbt_attach [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-03 04:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:40:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 04:40:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 04:40:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 04:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-04-03 04:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2023-04-03 04:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-03 04:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-04-03 04:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 04:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-03 04:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-04-03 04:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_13 [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_15 [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_16 [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_10 [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_6 [2023-04-03 04:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_8 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_5 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_9 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_11 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-03 04:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-04-03 04:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_adapter [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_init [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_init [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_frontend [2023-04-03 04:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_init [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusbdecfe_dvbs_attach [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusbdecfe_dvbt_attach [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure crc16 [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_get_stb_state [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_audio_pes2ts_cb [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_video_pes2ts_cb [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_pva [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_filter [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_packet [2023-04-03 04:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure swap_bytes [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb_frame [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb_frame_list [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_interface [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_ts_feed [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_sec_feed [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_feed [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_alloc_iso_urbs [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_tasklet [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_v_pes [2023-04-03 04:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_usb [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_boot_dsp [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_stb [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_rc [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_tasklet [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_filters [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_filters [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure fe_send_command [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_driver_init [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_driver_exit [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 04:40:13,681 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:40:13,684 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:40:13,811 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 04:40:16,808 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-03 04:40:18,516 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:40:19,128 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:40:19,128 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 04:40:19,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:40:19 BoogieIcfgContainer [2023-04-03 04:40:19,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:40:19,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:40:19,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:40:19,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:40:19,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:40:11" (1/3) ... [2023-04-03 04:40:19,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1885a3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:40:19, skipping insertion in model container [2023-04-03 04:40:19,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:40:12" (2/3) ... [2023-04-03 04:40:19,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1885a3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:40:19, skipping insertion in model container [2023-04-03 04:40:19,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:40:19" (3/3) ... [2023-04-03 04:40:19,138 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 [2023-04-03 04:40:19,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:40:19,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:40:19,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:40:19,282 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;@30577f61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:40:19,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:40:19,290 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) [2023-04-03 04:40:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-03 04:40:19,297 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:19,298 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] [2023-04-03 04:40:19,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:19,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:19,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1564473080, now seen corresponding path program 1 times [2023-04-03 04:40:19,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:19,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990439621] [2023-04-03 04:40:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:19,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:19,703 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-03 04:40:19,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:19,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990439621] [2023-04-03 04:40:19,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990439621] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:19,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:19,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:40:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086115904] [2023-04-03 04:40:19,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:19,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:19,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:19,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:19,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:19,729 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) [2023-04-03 04:40:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:20,608 INFO L93 Difference]: Finished difference Result 3863 states and 5160 transitions. [2023-04-03 04:40:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:20,611 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 [2023-04-03 04:40:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:20,632 INFO L225 Difference]: With dead ends: 3863 [2023-04-03 04:40:20,632 INFO L226 Difference]: Without dead ends: 2541 [2023-04-03 04:40:20,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:20,642 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1681 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:20,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 3180 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 04:40:20,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2023-04-03 04:40:20,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2541. [2023-04-03 04:40:20,777 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) [2023-04-03 04:40:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3381 transitions. [2023-04-03 04:40:20,789 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3381 transitions. Word has length 64 [2023-04-03 04:40:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:20,790 INFO L495 AbstractCegarLoop]: Abstraction has 2541 states and 3381 transitions. [2023-04-03 04:40:20,790 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) [2023-04-03 04:40:20,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3381 transitions. [2023-04-03 04:40:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-03 04:40:20,793 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:20,793 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] [2023-04-03 04:40:20,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:40:20,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:20,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:20,794 INFO L85 PathProgramCache]: Analyzing trace with hash 942931957, now seen corresponding path program 1 times [2023-04-03 04:40:20,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:20,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193690160] [2023-04-03 04:40:20,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:20,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-03 04:40:21,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:21,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193690160] [2023-04-03 04:40:21,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193690160] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:21,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:21,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:40:21,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861244520] [2023-04-03 04:40:21,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:21,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:21,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:21,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:21,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:21,262 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) [2023-04-03 04:40:22,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:22,136 INFO L93 Difference]: Finished difference Result 4990 states and 6722 transitions. [2023-04-03 04:40:22,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:22,137 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 [2023-04-03 04:40:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:22,158 INFO L225 Difference]: With dead ends: 4990 [2023-04-03 04:40:22,159 INFO L226 Difference]: Without dead ends: 4987 [2023-04-03 04:40:22,160 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 [2023-04-03 04:40:22,161 INFO L413 NwaCegarLoop]: 2019 mSDtfsCounter, 1657 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:22,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 3579 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 04:40:22,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2023-04-03 04:40:22,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4975. [2023-04-03 04:40:22,305 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) [2023-04-03 04:40:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4975 states to 4975 states and 6705 transitions. [2023-04-03 04:40:22,325 INFO L78 Accepts]: Start accepts. Automaton has 4975 states and 6705 transitions. Word has length 77 [2023-04-03 04:40:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:22,325 INFO L495 AbstractCegarLoop]: Abstraction has 4975 states and 6705 transitions. [2023-04-03 04:40:22,325 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) [2023-04-03 04:40:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4975 states and 6705 transitions. [2023-04-03 04:40:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-03 04:40:22,327 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:22,327 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] [2023-04-03 04:40:22,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:40:22,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:22,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:22,328 INFO L85 PathProgramCache]: Analyzing trace with hash -834671479, now seen corresponding path program 1 times [2023-04-03 04:40:22,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:22,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56035447] [2023-04-03 04:40:22,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:22,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:22,616 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-03 04:40:22,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:22,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56035447] [2023-04-03 04:40:22,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56035447] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:22,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:22,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:40:22,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902288909] [2023-04-03 04:40:22,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:22,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:22,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:22,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:22,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:22,618 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) [2023-04-03 04:40:23,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:23,045 INFO L93 Difference]: Finished difference Result 4977 states and 6706 transitions. [2023-04-03 04:40:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:23,046 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 [2023-04-03 04:40:23,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:23,065 INFO L225 Difference]: With dead ends: 4977 [2023-04-03 04:40:23,066 INFO L226 Difference]: Without dead ends: 4974 [2023-04-03 04:40:23,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:23,068 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 1697 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:23,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 1574 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:40:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4974 states. [2023-04-03 04:40:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4974 to 4974. [2023-04-03 04:40:23,239 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) [2023-04-03 04:40:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4974 states to 4974 states and 6703 transitions. [2023-04-03 04:40:23,255 INFO L78 Accepts]: Start accepts. Automaton has 4974 states and 6703 transitions. Word has length 78 [2023-04-03 04:40:23,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:23,255 INFO L495 AbstractCegarLoop]: Abstraction has 4974 states and 6703 transitions. [2023-04-03 04:40:23,255 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) [2023-04-03 04:40:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4974 states and 6703 transitions. [2023-04-03 04:40:23,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-04-03 04:40:23,256 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:23,256 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] [2023-04-03 04:40:23,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:40:23,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:23,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:23,257 INFO L85 PathProgramCache]: Analyzing trace with hash -105798280, now seen corresponding path program 1 times [2023-04-03 04:40:23,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:23,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011722672] [2023-04-03 04:40:23,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:23,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-03 04:40:23,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:23,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011722672] [2023-04-03 04:40:23,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011722672] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:23,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:23,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:40:23,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676595188] [2023-04-03 04:40:23,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:23,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:23,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:23,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:23,461 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) [2023-04-03 04:40:23,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:23,966 INFO L93 Difference]: Finished difference Result 4976 states and 6704 transitions. [2023-04-03 04:40:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:23,968 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 [2023-04-03 04:40:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:23,988 INFO L225 Difference]: With dead ends: 4976 [2023-04-03 04:40:23,988 INFO L226 Difference]: Without dead ends: 4973 [2023-04-03 04:40:23,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:23,991 INFO L413 NwaCegarLoop]: 1571 mSDtfsCounter, 1694 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2023-04-03 04:40:23,992 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] [2023-04-03 04:40:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2023-04-03 04:40:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4973. [2023-04-03 04:40:24,180 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) [2023-04-03 04:40:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 6701 transitions. [2023-04-03 04:40:24,196 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 6701 transitions. Word has length 79 [2023-04-03 04:40:24,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:24,196 INFO L495 AbstractCegarLoop]: Abstraction has 4973 states and 6701 transitions. [2023-04-03 04:40:24,197 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) [2023-04-03 04:40:24,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 6701 transitions. [2023-04-03 04:40:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-03 04:40:24,199 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:24,199 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] [2023-04-03 04:40:24,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:40:24,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:24,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:24,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1014439276, now seen corresponding path program 1 times [2023-04-03 04:40:24,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:24,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188038224] [2023-04-03 04:40:24,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:24,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-03 04:40:24,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:24,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188038224] [2023-04-03 04:40:24,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188038224] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:24,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:24,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:40:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175963057] [2023-04-03 04:40:24,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:24,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:24,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:24,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:24,315 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) [2023-04-03 04:40:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:25,037 INFO L93 Difference]: Finished difference Result 4975 states and 6702 transitions. [2023-04-03 04:40:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:25,038 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 [2023-04-03 04:40:25,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:25,057 INFO L225 Difference]: With dead ends: 4975 [2023-04-03 04:40:25,057 INFO L226 Difference]: Without dead ends: 4972 [2023-04-03 04:40:25,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:25,059 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 1691 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:25,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1570 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:40:25,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4972 states. [2023-04-03 04:40:25,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4972 to 4972. [2023-04-03 04:40:25,328 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) [2023-04-03 04:40:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 6699 transitions. [2023-04-03 04:40:25,345 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 6699 transitions. Word has length 80 [2023-04-03 04:40:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:25,345 INFO L495 AbstractCegarLoop]: Abstraction has 4972 states and 6699 transitions. [2023-04-03 04:40:25,346 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) [2023-04-03 04:40:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 6699 transitions. [2023-04-03 04:40:25,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-03 04:40:25,350 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:25,350 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] [2023-04-03 04:40:25,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:40:25,351 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:25,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:25,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1382070011, now seen corresponding path program 1 times [2023-04-03 04:40:25,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:25,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763929138] [2023-04-03 04:40:25,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:25,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-03 04:40:25,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:25,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763929138] [2023-04-03 04:40:25,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763929138] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:25,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:25,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:40:25,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863920363] [2023-04-03 04:40:25,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:25,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:25,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:25,485 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) [2023-04-03 04:40:25,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:25,921 INFO L93 Difference]: Finished difference Result 4974 states and 6700 transitions. [2023-04-03 04:40:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:25,922 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 [2023-04-03 04:40:25,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:25,947 INFO L225 Difference]: With dead ends: 4974 [2023-04-03 04:40:25,947 INFO L226 Difference]: Without dead ends: 4954 [2023-04-03 04:40:25,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:25,950 INFO L413 NwaCegarLoop]: 1568 mSDtfsCounter, 1688 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:25,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 1569 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:40:25,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2023-04-03 04:40:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4954. [2023-04-03 04:40:26,193 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) [2023-04-03 04:40:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 6678 transitions. [2023-04-03 04:40:26,211 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 6678 transitions. Word has length 81 [2023-04-03 04:40:26,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:26,212 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 6678 transitions. [2023-04-03 04:40:26,212 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) [2023-04-03 04:40:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 6678 transitions. [2023-04-03 04:40:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-04-03 04:40:26,217 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:26,217 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] [2023-04-03 04:40:26,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:40:26,218 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:26,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:26,218 INFO L85 PathProgramCache]: Analyzing trace with hash 739746164, now seen corresponding path program 1 times [2023-04-03 04:40:26,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:26,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105731769] [2023-04-03 04:40:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:26,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-04-03 04:40:26,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:26,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105731769] [2023-04-03 04:40:26,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105731769] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:26,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:26,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:40:26,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205295966] [2023-04-03 04:40:26,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:26,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:26,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:26,405 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) [2023-04-03 04:40:27,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:27,196 INFO L93 Difference]: Finished difference Result 7830 states and 10542 transitions. [2023-04-03 04:40:27,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:27,198 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 [2023-04-03 04:40:27,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:27,206 INFO L225 Difference]: With dead ends: 7830 [2023-04-03 04:40:27,206 INFO L226 Difference]: Without dead ends: 2906 [2023-04-03 04:40:27,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:40:27,219 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 211 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:27,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 3101 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 04:40:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2023-04-03 04:40:27,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2878. [2023-04-03 04:40:27,331 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) [2023-04-03 04:40:27,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 3865 transitions. [2023-04-03 04:40:27,339 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 3865 transitions. Word has length 190 [2023-04-03 04:40:27,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:27,339 INFO L495 AbstractCegarLoop]: Abstraction has 2878 states and 3865 transitions. [2023-04-03 04:40:27,339 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) [2023-04-03 04:40:27,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 3865 transitions. [2023-04-03 04:40:27,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-04-03 04:40:27,343 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:27,343 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] [2023-04-03 04:40:27,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:40:27,343 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:27,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash 756570339, now seen corresponding path program 1 times [2023-04-03 04:40:27,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:27,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774433721] [2023-04-03 04:40:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:27,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-03 04:40:27,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:27,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774433721] [2023-04-03 04:40:27,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774433721] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:27,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:40:27,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 04:40:27,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492216447] [2023-04-03 04:40:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:27,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 04:40:27,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 04:40:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 04:40:27,541 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) [2023-04-03 04:40:29,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:29,138 INFO L93 Difference]: Finished difference Result 5434 states and 7409 transitions. [2023-04-03 04:40:29,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:29,138 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 [2023-04-03 04:40:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:29,145 INFO L225 Difference]: With dead ends: 5434 [2023-04-03 04:40:29,146 INFO L226 Difference]: Without dead ends: 2703 [2023-04-03 04:40:29,153 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 [2023-04-03 04:40:29,154 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 [2023-04-03 04:40:29,154 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] [2023-04-03 04:40:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2023-04-03 04:40:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2703. [2023-04-03 04:40:29,269 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) [2023-04-03 04:40:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3644 transitions. [2023-04-03 04:40:29,275 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3644 transitions. Word has length 207 [2023-04-03 04:40:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:29,276 INFO L495 AbstractCegarLoop]: Abstraction has 2703 states and 3644 transitions. [2023-04-03 04:40:29,276 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) [2023-04-03 04:40:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3644 transitions. [2023-04-03 04:40:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-04-03 04:40:29,281 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:29,281 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] [2023-04-03 04:40:29,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 04:40:29,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:29,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:29,281 INFO L85 PathProgramCache]: Analyzing trace with hash -877900782, now seen corresponding path program 1 times [2023-04-03 04:40:29,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:29,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014763848] [2023-04-03 04:40:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:29,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-04-03 04:40:29,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:29,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014763848] [2023-04-03 04:40:29,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014763848] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:40:29,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992807089] [2023-04-03 04:40:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:29,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:40:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:40:29,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:40:29,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:40:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:30,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 3094 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-03 04:40:30,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:40:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-03 04:40:30,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:40:30,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992807089] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:30,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:40:30,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-04-03 04:40:30,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042742634] [2023-04-03 04:40:30,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:30,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:30,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:30,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:30,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:40:30,423 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) [2023-04-03 04:40:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:31,175 INFO L93 Difference]: Finished difference Result 5263 states and 7198 transitions. [2023-04-03 04:40:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:31,176 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 [2023-04-03 04:40:31,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:31,185 INFO L225 Difference]: With dead ends: 5263 [2023-04-03 04:40:31,186 INFO L226 Difference]: Without dead ends: 2707 [2023-04-03 04:40:31,193 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 [2023-04-03 04:40:31,194 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 2 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:31,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2906 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 04:40:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2023-04-03 04:40:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2705. [2023-04-03 04:40:31,352 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) [2023-04-03 04:40:31,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 3646 transitions. [2023-04-03 04:40:31,358 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 3646 transitions. Word has length 250 [2023-04-03 04:40:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:31,362 INFO L495 AbstractCegarLoop]: Abstraction has 2705 states and 3646 transitions. [2023-04-03 04:40:31,362 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) [2023-04-03 04:40:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 3646 transitions. [2023-04-03 04:40:31,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-04-03 04:40:31,367 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:31,367 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] [2023-04-03 04:40:31,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-03 04:40:31,578 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 [2023-04-03 04:40:31,578 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:31,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:31,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1510609114, now seen corresponding path program 1 times [2023-04-03 04:40:31,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:31,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916524652] [2023-04-03 04:40:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:31,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-03 04:40:31,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916524652] [2023-04-03 04:40:31,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916524652] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:40:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917200119] [2023-04-03 04:40:31,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:31,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:40:31,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:40:31,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:40:31,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 04:40:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:32,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-03 04:40:32,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:40:32,659 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-04-03 04:40:32,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:40:32,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917200119] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:40:32,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:40:32,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-04-03 04:40:32,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688608686] [2023-04-03 04:40:32,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:40:32,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:40:32,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:40:32,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:40:32,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:40:32,661 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) [2023-04-03 04:40:33,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:40:33,252 INFO L93 Difference]: Finished difference Result 5265 states and 7198 transitions. [2023-04-03 04:40:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:40:33,254 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 [2023-04-03 04:40:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:40:33,263 INFO L225 Difference]: With dead ends: 5265 [2023-04-03 04:40:33,263 INFO L226 Difference]: Without dead ends: 2707 [2023-04-03 04:40:33,271 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 [2023-04-03 04:40:33,272 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 0 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:40:33,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2908 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:40:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2023-04-03 04:40:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2707. [2023-04-03 04:40:33,377 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) [2023-04-03 04:40:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3648 transitions. [2023-04-03 04:40:33,385 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3648 transitions. Word has length 252 [2023-04-03 04:40:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:40:33,386 INFO L495 AbstractCegarLoop]: Abstraction has 2707 states and 3648 transitions. [2023-04-03 04:40:33,386 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) [2023-04-03 04:40:33,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3648 transitions. [2023-04-03 04:40:33,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-04-03 04:40:33,398 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:40:33,399 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] [2023-04-03 04:40:33,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-03 04:40:33,612 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 [2023-04-03 04:40:33,612 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:40:33,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:40:33,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1651317178, now seen corresponding path program 1 times [2023-04-03 04:40:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:40:33,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85509327] [2023-04-03 04:40:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:33,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:40:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-03 04:40:33,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:40:33,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85509327] [2023-04-03 04:40:33,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85509327] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:40:33,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906013351] [2023-04-03 04:40:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:40:33,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:40:33,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:40:33,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:40:33,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 04:40:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:40:34,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 3221 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 04:40:34,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:40:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-03 04:40:34,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:40:34,990 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-03 04:40:34,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906013351] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:40:34,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1468267638] [2023-04-03 04:40:35,008 INFO L159 IcfgInterpreter]: Started Sifa with 203 locations of interest [2023-04-03 04:40:35,008 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:40:35,010 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:40:35,013 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:40:35,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:40:44,969 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 160 for LOIs [2023-04-03 04:40:48,684 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 165 for LOIs [2023-04-03 04:41:03,465 WARN L223 SmtUtils]: Spent 12.37s on a formula simplification. DAG size of input: 5066 DAG size of output: 126 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:41:15,963 WARN L223 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 5066 DAG size of output: 126 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:41:15,967 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 116 for LOIs [2023-04-03 04:41:15,983 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 126 for LOIs [2023-04-03 04:41:16,042 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 135 for LOIs [2023-04-03 04:41:16,070 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 04:41:24,456 WARN L223 SmtUtils]: Spent 8.10s 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) [2023-04-03 04:41:30,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1468267638] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:30,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 04:41:30,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 27 [2023-04-03 04:41:30,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091851269] [2023-04-03 04:41:30,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:30,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-03 04:41:30,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-03 04:41:30,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2023-04-03 04:41:30,360 INFO L87 Difference]: Start difference. First operand 2707 states and 3648 transitions. Second operand has 22 states, 14 states have (on average 8.785714285714286) internal successors, (123), 12 states have internal predecessors, (123), 9 states have call successors, (50), 6 states have call predecessors, (50), 4 states have return successors, (47), 8 states have call predecessors, (47), 8 states have call successors, (47) [2023-04-03 04:41:48,651 WARN L223 SmtUtils]: Spent 18.05s on a formula simplification. DAG size of input: 1634 DAG size of output: 1616 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:43:04,864 WARN L223 SmtUtils]: Spent 1.26m on a formula simplification. DAG size of input: 1642 DAG size of output: 1624 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:43:23,428 WARN L223 SmtUtils]: Spent 18.33s on a formula simplification. DAG size of input: 1638 DAG size of output: 1620 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:43:43,160 WARN L223 SmtUtils]: Spent 19.53s on a formula simplification. DAG size of input: 1646 DAG size of output: 1628 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:44:00,913 WARN L223 SmtUtils]: Spent 17.56s on a formula simplification. DAG size of input: 1652 DAG size of output: 1634 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:44:19,172 WARN L223 SmtUtils]: Spent 18.01s on a formula simplification. DAG size of input: 1619 DAG size of output: 1618 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)