/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-ethernet-sun-sunhme.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:53:35,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:53:35,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:53:35,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:53:35,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:53:35,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:53:35,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:53:35,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:53:35,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:53:35,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:53:35,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:53:35,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:53:35,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:53:35,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:53:35,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:53:35,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:53:35,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:53:35,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:53:35,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:53:35,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:53:35,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:53:35,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:53:35,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:53:35,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:53:35,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 16:53:35,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:53:35,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:53:35,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:53:35,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:53:35,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:53:35,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:53:35,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:53:35,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:53:35,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:53:35,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:53:35,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:53:35,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:53:36,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:53:36,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:53:36,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:53:36,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:53:36,026 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:53:36,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:53:36,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:53:36,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:53:36,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:53:36,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:53:36,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:53:36,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:53:36,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:53:36,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:53:36,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:53:36,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:53:36,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:53:36,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:53:36,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:53:36,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:53:36,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:53:36,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:53:36,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:53:36,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:53:36,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:53:36,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:53:36,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:53:36,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:53:36,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:53:36,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:53:36,589 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:53:36,590 INFO L432 ainManager$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-ethernet-sun-sunhme.cil.i [2020-12-22 16:53:36,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880a72af9/352d7b448106437da4acc96ea7e3a26b/FLAG24ef7a665 [2020-12-22 16:53:37,822 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:53:37,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2020-12-22 16:53:37,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880a72af9/352d7b448106437da4acc96ea7e3a26b/FLAG24ef7a665 [2020-12-22 16:53:38,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880a72af9/352d7b448106437da4acc96ea7e3a26b [2020-12-22 16:53:38,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:53:38,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:53:38,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:53:38,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:53:38,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:53:38,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:53:38" (1/1) ... [2020-12-22 16:53:38,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768b15c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:38, skipping insertion in model container [2020-12-22 16:53:38,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:53:38" (1/1) ... [2020-12-22 16:53:38,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:53:38,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:53:42,060 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-ethernet-sun-sunhme.cil.i[348277,348290] [2020-12-22 16:53:42,064 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-ethernet-sun-sunhme.cil.i[348422,348435] [2020-12-22 16:53:42,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:53:42,122 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:53:42,639 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-ethernet-sun-sunhme.cil.i[348277,348290] [2020-12-22 16:53:42,640 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-ethernet-sun-sunhme.cil.i[348422,348435] [2020-12-22 16:53:42,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:53:43,511 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:53:43,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43 WrapperNode [2020-12-22 16:53:43,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:53:43,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:53:43,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:53:43,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:53:43,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:43,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:55,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:53:55,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:53:55,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:53:55,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:53:55,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:55,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:56,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:56,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:59,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:59,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:53:59,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (1/1) ... [2020-12-22 16:54:00,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:54:00,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:54:00,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:54:00,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:54:00,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (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 16:54:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-12-22 16:54:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:54:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:54:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:54:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:54:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:54:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:54:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:54:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:54:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:54:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:54:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:54:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:54:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:54:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:54:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:55:22,582 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:55:22,583 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 16:55:22,583 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:55:22,584 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:55:22,591 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:55:22,593 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:55:22,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:55:22,716 INFO L299 CfgBuilder]: Removed 36416 assume(true) statements. [2020-12-22 16:55:22,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:55:22 BoogieIcfgContainer [2020-12-22 16:55:22,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:55:22,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:55:22,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:55:22,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:55:22,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:53:38" (1/3) ... [2020-12-22 16:55:22,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198e5691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:55:22, skipping insertion in model container [2020-12-22 16:55:22,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:53:43" (2/3) ... [2020-12-22 16:55:22,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198e5691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:55:22, skipping insertion in model container [2020-12-22 16:55:22,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:55:22" (3/3) ... [2020-12-22 16:55:22,749 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2020-12-22 16:55:22,756 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:55:22,782 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 16:55:22,801 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 16:55:22,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:55:22,897 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:55:22,897 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:55:22,897 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:55:22,897 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:55:22,897 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:55:22,897 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:55:22,897 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:55:23,119 INFO L276 IsEmpty]: Start isEmpty. Operand 23391 states. [2020-12-22 16:55:23,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 16:55:23,145 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:55:23,146 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] [2020-12-22 16:55:23,147 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 16:55:23,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:55:23,153 INFO L82 PathProgramCache]: Analyzing trace with hash 633292136, now seen corresponding path program 1 times [2020-12-22 16:55:23,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:55:23,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601952663] [2020-12-22 16:55:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:55:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:55:24,055 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 16:55:24,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601952663] [2020-12-22 16:55:24,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:55:24,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:55:24,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188329241] [2020-12-22 16:55:24,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:55:24,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:55:24,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:55:24,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:55:24,081 INFO L87 Difference]: Start difference. First operand 23391 states. Second operand 3 states. [2020-12-22 16:55:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:55:28,919 INFO L93 Difference]: Finished difference Result 67155 states and 81041 transitions. [2020-12-22 16:55:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:55:28,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-22 16:55:28,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:55:29,198 INFO L225 Difference]: With dead ends: 67155 [2020-12-22 16:55:29,198 INFO L226 Difference]: Without dead ends: 43434 [2020-12-22 16:55:29,277 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 16:55:29,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43434 states. [2020-12-22 16:55:31,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43434 to 43387. [2020-12-22 16:55:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43387 states. [2020-12-22 16:55:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43387 states to 43387 states and 52035 transitions. [2020-12-22 16:55:31,160 INFO L78 Accepts]: Start accepts. Automaton has 43387 states and 52035 transitions. Word has length 63 [2020-12-22 16:55:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:55:31,164 INFO L481 AbstractCegarLoop]: Abstraction has 43387 states and 52035 transitions. [2020-12-22 16:55:31,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:55:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand 43387 states and 52035 transitions. [2020-12-22 16:55:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 16:55:31,178 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:55:31,178 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] [2020-12-22 16:55:31,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:55:31,181 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 16:55:31,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:55:31,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2059571142, now seen corresponding path program 1 times [2020-12-22 16:55:31,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:55:31,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670981808] [2020-12-22 16:55:31,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:55:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:55:31,604 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 16:55:31,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670981808] [2020-12-22 16:55:31,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:55:31,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:55:31,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127584967] [2020-12-22 16:55:31,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:55:31,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:55:31,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:55:31,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:55:31,609 INFO L87 Difference]: Start difference. First operand 43387 states and 52035 transitions. Second operand 3 states. [2020-12-22 16:55:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:55:36,112 INFO L93 Difference]: Finished difference Result 106550 states and 127785 transitions. [2020-12-22 16:55:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:55:36,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-12-22 16:55:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:55:36,296 INFO L225 Difference]: With dead ends: 106550 [2020-12-22 16:55:36,297 INFO L226 Difference]: Without dead ends: 63231 [2020-12-22 16:55:36,436 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 16:55:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63231 states. [2020-12-22 16:55:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63231 to 63213. [2020-12-22 16:55:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63213 states. [2020-12-22 16:55:38,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63213 states to 63213 states and 75783 transitions. [2020-12-22 16:55:38,746 INFO L78 Accepts]: Start accepts. Automaton has 63213 states and 75783 transitions. Word has length 72 [2020-12-22 16:55:38,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:55:38,747 INFO L481 AbstractCegarLoop]: Abstraction has 63213 states and 75783 transitions. [2020-12-22 16:55:38,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:55:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 63213 states and 75783 transitions. [2020-12-22 16:55:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 16:55:38,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:55:38,755 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] [2020-12-22 16:55:38,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:55:38,756 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 16:55:38,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:55:38,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1736663696, now seen corresponding path program 1 times [2020-12-22 16:55:38,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:55:38,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676835977] [2020-12-22 16:55:38,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:55:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:55:39,091 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 16:55:39,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676835977] [2020-12-22 16:55:39,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:55:39,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:55:39,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677944184] [2020-12-22 16:55:39,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:55:39,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:55:39,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:55:39,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:55:39,103 INFO L87 Difference]: Start difference. First operand 63213 states and 75783 transitions. Second operand 3 states. [2020-12-22 16:55:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:55:44,639 INFO L93 Difference]: Finished difference Result 173851 states and 208510 transitions. [2020-12-22 16:55:44,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:55:44,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-12-22 16:55:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:55:45,007 INFO L225 Difference]: With dead ends: 173851 [2020-12-22 16:55:45,008 INFO L226 Difference]: Without dead ends: 110706 [2020-12-22 16:55:45,184 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 16:55:45,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110706 states. [2020-12-22 16:55:48,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110706 to 110262. [2020-12-22 16:55:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110262 states. [2020-12-22 16:55:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110262 states to 110262 states and 132260 transitions. [2020-12-22 16:55:48,472 INFO L78 Accepts]: Start accepts. Automaton has 110262 states and 132260 transitions. Word has length 84 [2020-12-22 16:55:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:55:48,472 INFO L481 AbstractCegarLoop]: Abstraction has 110262 states and 132260 transitions. [2020-12-22 16:55:48,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:55:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 110262 states and 132260 transitions. [2020-12-22 16:55:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 16:55:48,478 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:55:48,479 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] [2020-12-22 16:55:48,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:55:48,479 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 16:55:48,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:55:48,480 INFO L82 PathProgramCache]: Analyzing trace with hash -43129630, now seen corresponding path program 1 times [2020-12-22 16:55:48,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:55:48,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392426891] [2020-12-22 16:55:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:55:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:55:48,759 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 16:55:48,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392426891] [2020-12-22 16:55:48,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:55:48,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:55:48,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383580030] [2020-12-22 16:55:48,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:55:48,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:55:48,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:55:48,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:55:48,762 INFO L87 Difference]: Start difference. First operand 110262 states and 132260 transitions. Second operand 3 states. [2020-12-22 16:55:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:55:55,011 INFO L93 Difference]: Finished difference Result 233682 states and 280715 transitions. [2020-12-22 16:55:55,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:55:55,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-12-22 16:55:55,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:55:55,336 INFO L225 Difference]: With dead ends: 233682 [2020-12-22 16:55:55,337 INFO L226 Difference]: Without dead ends: 123488 [2020-12-22 16:55:55,471 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 16:55:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123488 states. [2020-12-22 16:55:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123488 to 122152. [2020-12-22 16:55:59,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122152 states. [2020-12-22 16:55:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122152 states to 122152 states and 146946 transitions. [2020-12-22 16:55:59,347 INFO L78 Accepts]: Start accepts. Automaton has 122152 states and 146946 transitions. Word has length 87 [2020-12-22 16:55:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:55:59,348 INFO L481 AbstractCegarLoop]: Abstraction has 122152 states and 146946 transitions. [2020-12-22 16:55:59,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:55:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 122152 states and 146946 transitions. [2020-12-22 16:55:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 16:55:59,357 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:55:59,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:55:59,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:55:59,358 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 16:55:59,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:55:59,358 INFO L82 PathProgramCache]: Analyzing trace with hash 232168481, now seen corresponding path program 1 times [2020-12-22 16:55:59,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:55:59,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381266452] [2020-12-22 16:55:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:55:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:55:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:55:59,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381266452] [2020-12-22 16:55:59,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:55:59,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:55:59,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41687041] [2020-12-22 16:55:59,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:55:59,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:55:59,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:55:59,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:55:59,624 INFO L87 Difference]: Start difference. First operand 122152 states and 146946 transitions. Second operand 3 states. [2020-12-22 16:56:07,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:56:07,993 INFO L93 Difference]: Finished difference Result 366240 states and 440606 transitions. [2020-12-22 16:56:07,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:56:07,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 16:56:08,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:56:08,606 INFO L225 Difference]: With dead ends: 366240 [2020-12-22 16:56:08,606 INFO L226 Difference]: Without dead ends: 244156 [2020-12-22 16:56:08,850 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 16:56:09,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244156 states. [2020-12-22 16:56:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244156 to 244040. [2020-12-22 16:56:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244040 states. [2020-12-22 16:56:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244040 states to 244040 states and 293582 transitions. [2020-12-22 16:56:16,640 INFO L78 Accepts]: Start accepts. Automaton has 244040 states and 293582 transitions. Word has length 102 [2020-12-22 16:56:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:56:16,640 INFO L481 AbstractCegarLoop]: Abstraction has 244040 states and 293582 transitions. [2020-12-22 16:56:16,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:56:16,640 INFO L276 IsEmpty]: Start isEmpty. Operand 244040 states and 293582 transitions. [2020-12-22 16:56:16,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 16:56:16,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:56:16,650 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] [2020-12-22 16:56:16,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:56:16,651 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 16:56:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:56:16,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1079765493, now seen corresponding path program 1 times [2020-12-22 16:56:16,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:56:16,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553494475] [2020-12-22 16:56:16,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:56:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:56:17,265 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 16:56:17,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553494475] [2020-12-22 16:56:17,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:56:17,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:56:17,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154500190] [2020-12-22 16:56:17,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:56:17,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:56:17,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:56:17,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:56:17,277 INFO L87 Difference]: Start difference. First operand 244040 states and 293582 transitions. Second operand 3 states. [2020-12-22 16:56:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:56:29,032 INFO L93 Difference]: Finished difference Result 556370 states and 669453 transitions. [2020-12-22 16:56:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:56:29,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-22 16:56:29,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:56:29,871 INFO L225 Difference]: With dead ends: 556370 [2020-12-22 16:56:29,871 INFO L226 Difference]: Without dead ends: 312398 [2020-12-22 16:56:30,342 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 16:56:30,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312398 states.