/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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:56:03,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:56:03,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:56:03,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:56:03,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:56:03,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:56:03,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:56:03,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:56:03,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:56:03,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:56:03,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:56:03,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:56:03,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:56:03,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:56:03,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:56:03,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:56:03,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:56:03,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:56:03,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:56:03,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:56:03,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:56:03,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:56:03,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:56:03,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:56:03,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:56:03,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:56:03,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:56:03,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:56:03,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:56:03,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:56:03,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:56:03,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:56:03,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:56:03,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:56:03,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:56:03,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:56:03,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:56:03,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:56:03,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:56:03,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:56:03,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:56:03,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:56:03,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:56:03,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:56:03,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:56:03,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:56:03,185 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:56:03,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:56:03,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:56:03,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:56:03,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:56:03,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:56:03,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:56:03,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:56:03,189 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:56:03,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:56:03,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:56:03,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:56:03,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:56:03,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:56:03,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:56:03,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:56:03,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:56:03,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:56:03,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:56:03,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:56:03,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:56:03,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:56:03,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:56:03,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:56:03,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:56:03,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:56:03,592 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:56:03,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2020-12-22 16:56:03,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4865ce6d6/0931eb1839704b5ea211f1ed9b33eeaa/FLAGe60e4c17e [2020-12-22 16:56:04,880 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:56:04,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2020-12-22 16:56:04,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4865ce6d6/0931eb1839704b5ea211f1ed9b33eeaa/FLAGe60e4c17e [2020-12-22 16:56:05,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4865ce6d6/0931eb1839704b5ea211f1ed9b33eeaa [2020-12-22 16:56:05,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:56:05,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:56:05,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:56:05,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:56:05,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:56:05,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:56:05" (1/1) ... [2020-12-22 16:56:05,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200be975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:05, skipping insertion in model container [2020-12-22 16:56:05,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:56:05" (1/1) ... [2020-12-22 16:56:05,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:56:05,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:56:09,699 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2020-12-22 16:56:09,703 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2020-12-22 16:56:09,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:56:09,830 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:56:10,339 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2020-12-22 16:56:10,340 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2020-12-22 16:56:10,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:56:11,524 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:56:11,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11 WrapperNode [2020-12-22 16:56:11,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:56:11,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:56:11,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:56:11,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:56:11,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:11,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:16,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:56:16,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:56:16,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:56:16,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:56:16,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:16,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:17,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:17,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:20,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:20,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:21,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (1/1) ... [2020-12-22 16:56:21,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:56:21,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:56:21,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:56:21,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:56:21,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (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 16:56:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:56:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:56:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:56:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:56:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:56:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:56:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 16:56:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 16:56:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:56:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:56:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:56:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:56:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2020-12-22 16:56:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2020-12-22 16:56:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:56:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:56:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:56:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:56:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-12-22 16:56:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:57:27,978 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:57:27,980 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 16:57:27,980 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:57:27,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,982 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,982 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,982 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,983 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,983 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,983 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2020-12-22 16:57:27,986 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:57:27,989 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:57:28,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:57:28,059 INFO L299 CfgBuilder]: Removed 30375 assume(true) statements. [2020-12-22 16:57:28,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:57:28 BoogieIcfgContainer [2020-12-22 16:57:28,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:57:28,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:57:28,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:57:28,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:57:28,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:56:05" (1/3) ... [2020-12-22 16:57:28,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459afdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:57:28, skipping insertion in model container [2020-12-22 16:57:28,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:11" (2/3) ... [2020-12-22 16:57:28,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459afdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:57:28, skipping insertion in model container [2020-12-22 16:57:28,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:57:28" (3/3) ... [2020-12-22 16:57:28,084 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2020-12-22 16:57:28,090 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:57:28,101 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 16:57:28,121 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 16:57:28,205 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:57:28,205 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:57:28,205 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:57:28,206 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:57:28,206 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:57:28,206 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:57:28,206 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:57:28,206 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:57:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 17179 states. [2020-12-22 16:57:28,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-12-22 16:57:28,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:57:28,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:28,448 INFO L429 AbstractCegarLoop]: === Iteration 1 === [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.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:57:28,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:57:28,455 INFO L82 PathProgramCache]: Analyzing trace with hash 2106735998, now seen corresponding path program 1 times [2020-12-22 16:57:28,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:57:28,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837434360] [2020-12-22 16:57:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:57:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:57:29,632 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 16:57:29,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837434360] [2020-12-22 16:57:29,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:57:29,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:57:29,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727699901] [2020-12-22 16:57:29,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:57:29,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:57:29,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:57:29,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:57:29,675 INFO L87 Difference]: Start difference. First operand 17179 states. Second operand 3 states. [2020-12-22 16:57:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:57:33,975 INFO L93 Difference]: Finished difference Result 47851 states and 58431 transitions. [2020-12-22 16:57:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:57:33,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-12-22 16:57:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:57:34,232 INFO L225 Difference]: With dead ends: 47851 [2020-12-22 16:57:34,232 INFO L226 Difference]: Without dead ends: 30546 [2020-12-22 16:57:34,378 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 16:57:34,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30546 states. [2020-12-22 16:57:35,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30546 to 30226. [2020-12-22 16:57:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30226 states. [2020-12-22 16:57:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30226 states to 30226 states and 36500 transitions. [2020-12-22 16:57:35,849 INFO L78 Accepts]: Start accepts. Automaton has 30226 states and 36500 transitions. Word has length 149 [2020-12-22 16:57:35,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:57:35,852 INFO L481 AbstractCegarLoop]: Abstraction has 30226 states and 36500 transitions. [2020-12-22 16:57:35,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:57:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand 30226 states and 36500 transitions. [2020-12-22 16:57:35,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-22 16:57:35,871 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:57:35,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:35,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:57:35,874 INFO L429 AbstractCegarLoop]: === Iteration 2 === [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.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:57:35,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:57:35,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1697068218, now seen corresponding path program 1 times [2020-12-22 16:57:35,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:57:35,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313232492] [2020-12-22 16:57:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:57:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:57:36,517 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 16:57:36,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313232492] [2020-12-22 16:57:36,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:57:36,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:57:36,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730023318] [2020-12-22 16:57:36,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:57:36,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:57:36,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:57:36,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:57:36,522 INFO L87 Difference]: Start difference. First operand 30226 states and 36500 transitions. Second operand 3 states. [2020-12-22 16:57:40,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:57:40,706 INFO L93 Difference]: Finished difference Result 87182 states and 105166 transitions. [2020-12-22 16:57:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:57:40,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-12-22 16:57:40,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:57:41,095 INFO L225 Difference]: With dead ends: 87182 [2020-12-22 16:57:41,095 INFO L226 Difference]: Without dead ends: 57248 [2020-12-22 16:57:41,218 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 16:57:41,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57248 states. [2020-12-22 16:57:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57248 to 56624. [2020-12-22 16:57:43,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56624 states. [2020-12-22 16:57:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56624 states to 56624 states and 68214 transitions. [2020-12-22 16:57:43,404 INFO L78 Accepts]: Start accepts. Automaton has 56624 states and 68214 transitions. Word has length 150 [2020-12-22 16:57:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:57:43,410 INFO L481 AbstractCegarLoop]: Abstraction has 56624 states and 68214 transitions. [2020-12-22 16:57:43,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:57:43,411 INFO L276 IsEmpty]: Start isEmpty. Operand 56624 states and 68214 transitions. [2020-12-22 16:57:43,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-12-22 16:57:43,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:57:43,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:43,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:57:43,426 INFO L429 AbstractCegarLoop]: === Iteration 3 === [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.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:57:43,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:57:43,428 INFO L82 PathProgramCache]: Analyzing trace with hash 965879122, now seen corresponding path program 1 times [2020-12-22 16:57:43,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:57:43,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854760748] [2020-12-22 16:57:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:57:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:57:43,917 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 16:57:43,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854760748] [2020-12-22 16:57:43,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:57:43,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:57:43,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729449719] [2020-12-22 16:57:43,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:57:43,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:57:43,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:57:43,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:57:43,921 INFO L87 Difference]: Start difference. First operand 56624 states and 68214 transitions. Second operand 3 states. [2020-12-22 16:57:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:57:48,879 INFO L93 Difference]: Finished difference Result 155724 states and 187800 transitions. [2020-12-22 16:57:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:57:48,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-12-22 16:57:48,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:57:49,502 INFO L225 Difference]: With dead ends: 155724 [2020-12-22 16:57:49,503 INFO L226 Difference]: Without dead ends: 99392 [2020-12-22 16:57:49,795 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 16:57:49,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99392 states. [2020-12-22 16:57:52,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99392 to 98152. [2020-12-22 16:57:52,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98152 states. [2020-12-22 16:57:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98152 states to 98152 states and 118354 transitions. [2020-12-22 16:57:52,996 INFO L78 Accepts]: Start accepts. Automaton has 98152 states and 118354 transitions. Word has length 151 [2020-12-22 16:57:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:57:52,997 INFO L481 AbstractCegarLoop]: Abstraction has 98152 states and 118354 transitions. [2020-12-22 16:57:52,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:57:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 98152 states and 118354 transitions. [2020-12-22 16:57:53,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-12-22 16:57:53,003 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:57:53,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:53,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:57:53,003 INFO L429 AbstractCegarLoop]: === Iteration 4 === [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.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:57:53,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:57:53,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1530764201, now seen corresponding path program 1 times [2020-12-22 16:57:53,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:57:53,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733745293] [2020-12-22 16:57:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:57:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:57:53,497 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 16:57:53,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733745293] [2020-12-22 16:57:53,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:57:53,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:57:53,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553879801] [2020-12-22 16:57:53,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:57:53,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:57:53,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:57:53,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:57:53,500 INFO L87 Difference]: Start difference. First operand 98152 states and 118354 transitions. Second operand 3 states. [2020-12-22 16:58:00,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:00,165 INFO L93 Difference]: Finished difference Result 290414 states and 349993 transitions. [2020-12-22 16:58:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:58:00,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-12-22 16:58:00,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:00,783 INFO L225 Difference]: With dead ends: 290414 [2020-12-22 16:58:00,783 INFO L226 Difference]: Without dead ends: 192554 [2020-12-22 16:58:01,544 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 16:58:01,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192554 states. [2020-12-22 16:58:06,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192554 to 192272. [2020-12-22 16:58:06,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192272 states. [2020-12-22 16:58:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192272 states to 192272 states and 231662 transitions. [2020-12-22 16:58:07,701 INFO L78 Accepts]: Start accepts. Automaton has 192272 states and 231662 transitions. Word has length 151 [2020-12-22 16:58:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:07,702 INFO L481 AbstractCegarLoop]: Abstraction has 192272 states and 231662 transitions. [2020-12-22 16:58:07,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:58:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 192272 states and 231662 transitions. [2020-12-22 16:58:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-22 16:58:07,716 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:07,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:07,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:58:07,717 INFO L429 AbstractCegarLoop]: === Iteration 5 === [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.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:58:07,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:07,717 INFO L82 PathProgramCache]: Analyzing trace with hash 313257745, now seen corresponding path program 1 times [2020-12-22 16:58:07,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:07,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125637813] [2020-12-22 16:58:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:08,065 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 16:58:08,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125637813] [2020-12-22 16:58:08,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:08,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:08,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309432296] [2020-12-22 16:58:08,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:58:08,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:08,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:58:08,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:58:08,068 INFO L87 Difference]: Start difference. First operand 192272 states and 231662 transitions. Second operand 3 states. [2020-12-22 16:58:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:19,171 INFO L93 Difference]: Finished difference Result 552332 states and 664432 transitions. [2020-12-22 16:58:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:58:19,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-12-22 16:58:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:20,591 INFO L225 Difference]: With dead ends: 552332 [2020-12-22 16:58:20,591 INFO L226 Difference]: Without dead ends: 360352 [2020-12-22 16:58:21,476 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 16:58:21,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360352 states. [2020-12-22 16:58:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360352 to 355488. [2020-12-22 16:58:30,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355488 states. [2020-12-22 16:58:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355488 states to 355488 states and 426930 transitions. [2020-12-22 16:58:33,465 INFO L78 Accepts]: Start accepts. Automaton has 355488 states and 426930 transitions. Word has length 152 [2020-12-22 16:58:33,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:33,466 INFO L481 AbstractCegarLoop]: Abstraction has 355488 states and 426930 transitions. [2020-12-22 16:58:33,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:58:33,466 INFO L276 IsEmpty]: Start isEmpty. Operand 355488 states and 426930 transitions. [2020-12-22 16:58:33,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-22 16:58:33,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:33,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:33,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:58:33,471 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:58:33,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:33,471 INFO L82 PathProgramCache]: Analyzing trace with hash -508851024, now seen corresponding path program 1 times [2020-12-22 16:58:33,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:33,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943890641] [2020-12-22 16:58:33,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:34,178 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 16:58:34,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943890641] [2020-12-22 16:58:34,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:34,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:34,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853372413] [2020-12-22 16:58:34,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:58:34,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:34,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:58:34,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:58:34,182 INFO L87 Difference]: Start difference. First operand 355488 states and 426930 transitions. Second operand 3 states.