/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:33:56,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:33:56,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:33:56,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:33:56,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:33:56,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:33:56,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:33:56,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:33:56,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:33:56,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:33:56,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:33:56,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:33:56,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:33:56,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:33:56,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:33:56,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:33:56,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:33:56,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:33:56,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:33:56,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:33:56,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:33:56,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:33:56,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:33:56,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:33:56,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:33:56,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:33:56,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:33:56,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:33:56,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:33:56,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:33:56,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:33:56,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:33:56,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:33:56,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:33:56,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:33:56,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:33:56,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:33:56,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:33:56,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:33:56,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:33:56,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:33:56,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:33:56,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:33:56,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:33:56,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:33:56,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:33:56,523 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:33:56,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:33:56,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:33:56,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:33:56,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:33:56,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:33:56,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:33:56,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:33:56,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:33:56,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:33:56,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:33:56,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:33:56,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:33:56,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:33:56,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:33:56,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:33:56,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:33:56,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:33:56,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:33:56,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:33:56,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:33:56,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:33:56,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:33:56,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:33:56,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:33:56,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:33:56,985 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:33:56,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2020-12-22 15:33:57,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00c1271c0/bd92ab3c90004b77bbabe42dc14d0f64/FLAG43eadd926 [2020-12-22 15:33:58,339 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:33:58,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2020-12-22 15:33:58,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00c1271c0/bd92ab3c90004b77bbabe42dc14d0f64/FLAG43eadd926 [2020-12-22 15:33:58,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00c1271c0/bd92ab3c90004b77bbabe42dc14d0f64 [2020-12-22 15:33:58,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:33:58,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:33:58,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:33:58,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:33:58,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:33:58,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:33:58" (1/1) ... [2020-12-22 15:33:58,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50052a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:58, skipping insertion in model container [2020-12-22 15:33:58,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:33:58" (1/1) ... [2020-12-22 15:33:58,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:33:58,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:34:02,952 WARN L226 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2020-12-22 15:34:02,956 WARN L226 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2020-12-22 15:34:02,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:34:03,013 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:34:04,193 WARN L226 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2020-12-22 15:34:04,194 WARN L226 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2020-12-22 15:34:04,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:34:05,050 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:34:05,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05 WrapperNode [2020-12-22 15:34:05,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:34:05,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:34:05,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:34:05,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:34:05,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:05,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:14,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:34:14,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:34:14,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:34:14,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:34:14,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:14,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:16,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:16,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:20,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:20,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:21,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... [2020-12-22 15:34:22,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:34:22,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:34:22,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:34:22,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:34:22,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:34:22,888 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2020-12-22 15:34:22,889 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2020-12-22 15:34:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2020-12-22 15:34:22,889 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2020-12-22 15:34:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:34:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:34:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:34:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:34:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2020-12-22 15:34:22,890 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2020-12-22 15:34:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:34:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:34:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:34:22,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:34:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:34:22,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:34:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:34:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:34:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:34:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2020-12-22 15:34:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2020-12-22 15:34:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:34:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:34:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:34:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:34:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:34:22,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:36:05,874 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:36:05,875 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:36:05,875 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,876 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,876 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,876 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,876 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,876 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,876 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,877 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:36:05,878 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 15:36:05,889 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:36:05,890 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:36:05,891 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2020-12-22 15:36:05,892 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2020-12-22 15:36:06,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:36:06,046 INFO L299 CfgBuilder]: Removed 40644 assume(true) statements. [2020-12-22 15:36:06,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:36:06 BoogieIcfgContainer [2020-12-22 15:36:06,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:36:06,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:36:06,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:36:06,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:36:06,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:33:58" (1/3) ... [2020-12-22 15:36:06,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af00caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:36:06, skipping insertion in model container [2020-12-22 15:36:06,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:34:05" (2/3) ... [2020-12-22 15:36:06,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af00caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:36:06, skipping insertion in model container [2020-12-22 15:36:06,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:36:06" (3/3) ... [2020-12-22 15:36:06,083 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2020-12-22 15:36:06,089 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:36:06,103 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-12-22 15:36:06,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-12-22 15:36:06,429 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:36:06,430 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:36:06,430 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:36:06,430 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:36:06,430 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:36:06,430 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:36:06,430 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:36:06,431 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:36:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 31582 states. [2020-12-22 15:36:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 15:36:06,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:06,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:36:06,865 INFO L429 AbstractCegarLoop]: === Iteration 1 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:06,874 INFO L82 PathProgramCache]: Analyzing trace with hash 398559688, now seen corresponding path program 1 times [2020-12-22 15:36:06,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:06,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163416894] [2020-12-22 15:36:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:36:08,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163416894] [2020-12-22 15:36:08,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:08,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:08,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532296639] [2020-12-22 15:36:08,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:08,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:08,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:08,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:08,265 INFO L87 Difference]: Start difference. First operand 31582 states. Second operand 3 states. [2020-12-22 15:36:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:13,690 INFO L93 Difference]: Finished difference Result 88699 states and 110945 transitions. [2020-12-22 15:36:13,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:13,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-12-22 15:36:13,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:14,291 INFO L225 Difference]: With dead ends: 88699 [2020-12-22 15:36:14,292 INFO L226 Difference]: Without dead ends: 56933 [2020-12-22 15:36:14,459 INFO L677 BasicCegarLoop]: 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 [2020-12-22 15:36:14,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56933 states. [2020-12-22 15:36:16,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56933 to 56911. [2020-12-22 15:36:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56911 states. [2020-12-22 15:36:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56911 states to 56911 states and 70988 transitions. [2020-12-22 15:36:17,058 INFO L78 Accepts]: Start accepts. Automaton has 56911 states and 70988 transitions. Word has length 82 [2020-12-22 15:36:17,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:17,061 INFO L481 AbstractCegarLoop]: Abstraction has 56911 states and 70988 transitions. [2020-12-22 15:36:17,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 56911 states and 70988 transitions. [2020-12-22 15:36:17,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-22 15:36:17,121 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:17,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:36:17,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:36:17,122 INFO L429 AbstractCegarLoop]: === Iteration 2 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:17,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1038599362, now seen corresponding path program 1 times [2020-12-22 15:36:17,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:17,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851683509] [2020-12-22 15:36:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:36:17,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851683509] [2020-12-22 15:36:17,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:17,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:17,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662420223] [2020-12-22 15:36:17,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:17,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:17,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:17,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:17,804 INFO L87 Difference]: Start difference. First operand 56911 states and 70988 transitions. Second operand 3 states. [2020-12-22 15:36:24,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:24,318 INFO L93 Difference]: Finished difference Result 169838 states and 211814 transitions. [2020-12-22 15:36:24,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:24,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-12-22 15:36:24,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:25,184 INFO L225 Difference]: With dead ends: 169838 [2020-12-22 15:36:25,185 INFO L226 Difference]: Without dead ends: 113051 [2020-12-22 15:36:25,402 INFO L677 BasicCegarLoop]: 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 [2020-12-22 15:36:25,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113051 states. [2020-12-22 15:36:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113051 to 112979. [2020-12-22 15:36:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112979 states. [2020-12-22 15:36:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112979 states to 112979 states and 140897 transitions. [2020-12-22 15:36:29,522 INFO L78 Accepts]: Start accepts. Automaton has 112979 states and 140897 transitions. Word has length 100 [2020-12-22 15:36:29,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:29,525 INFO L481 AbstractCegarLoop]: Abstraction has 112979 states and 140897 transitions. [2020-12-22 15:36:29,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 112979 states and 140897 transitions. [2020-12-22 15:36:29,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-22 15:36:29,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:29,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:36:29,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:36:29,578 INFO L429 AbstractCegarLoop]: === Iteration 3 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:29,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:29,580 INFO L82 PathProgramCache]: Analyzing trace with hash 99742409, now seen corresponding path program 1 times [2020-12-22 15:36:29,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:29,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023836056] [2020-12-22 15:36:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:36:30,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023836056] [2020-12-22 15:36:30,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:30,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:30,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476330451] [2020-12-22 15:36:30,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:30,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:30,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:30,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:30,315 INFO L87 Difference]: Start difference. First operand 112979 states and 140897 transitions. Second operand 3 states. [2020-12-22 15:36:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:38,099 INFO L93 Difference]: Finished difference Result 323543 states and 403886 transitions. [2020-12-22 15:36:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:38,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-12-22 15:36:38,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:39,606 INFO L225 Difference]: With dead ends: 323543 [2020-12-22 15:36:39,607 INFO L226 Difference]: Without dead ends: 210688 [2020-12-22 15:36:40,031 INFO L677 BasicCegarLoop]: 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 [2020-12-22 15:36:40,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210688 states. [2020-12-22 15:36:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210688 to 209262. [2020-12-22 15:36:46,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209262 states. [2020-12-22 15:36:47,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209262 states to 209262 states and 261366 transitions. [2020-12-22 15:36:47,340 INFO L78 Accepts]: Start accepts. Automaton has 209262 states and 261366 transitions. Word has length 104 [2020-12-22 15:36:47,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:47,340 INFO L481 AbstractCegarLoop]: Abstraction has 209262 states and 261366 transitions. [2020-12-22 15:36:47,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 209262 states and 261366 transitions. [2020-12-22 15:36:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-22 15:36:47,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:47,400 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 15:36:47,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:36:47,401 INFO L429 AbstractCegarLoop]: === Iteration 4 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:47,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:47,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1735980700, now seen corresponding path program 1 times [2020-12-22 15:36:47,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:47,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118755914] [2020-12-22 15:36:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:36:48,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118755914] [2020-12-22 15:36:48,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:48,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:48,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115942513] [2020-12-22 15:36:48,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:48,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:48,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:48,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:48,184 INFO L87 Difference]: Start difference. First operand 209262 states and 261366 transitions. Second operand 3 states.